dsPICDEM™ MCHV-2
Development Board
User’s Guide
2012 Microchip Technology Inc.
DS52074A
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,
PIC32 logo, rfPIC and UNI/O are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MXDEV, MXLAB, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, chipKIT,
chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,
dsPICworks, dsSPEAK, ECAN, ECONOMONITOR,
FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP,
Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB,
MPLINK, mTouch, Omniscient Code Generation, PICC,
PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE,
rfLAB, Select Mode, Total Endurance, TSHARC,
UniWinDriver, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2012, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-62076-406-0
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
DS52074A-page 2
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
2012 Microchip Technology Inc.
2012 Microchip Technology Inc.
DS52074A-page 3
dsPICDEM™ MCHV-2 Development Board User’s Guide
NOTES:
DS52074A-page 4
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Safety Notice
The safety notices and operating instructions provided should be adhered to, to avoid
a safety hazard. If in any doubt, consult your supplier.
WARNING – This system must be earthed (grounded) at all times.
WARNING – The output terminals are NOT isolated from the incoming AC mains
supply and may be at up to 410V with respect to ground, regardless of the input mains
supply voltage applied. These terminals are live during operation AND for five minutes
after disconnection from the supply. Do not attempt to access the terminals or remove
the cover during this time.
WARNING – The unit may obtain power through the output terminals if these are
connected to a rotating motor acting as a generator. If this is the case, then the previous
warning also applies (i.e., the output terminals are live when connected to the generator and for five minutes after the generator has been stopped). Note that this case can
arise even when the unit has been disconnected from the incoming AC mains supply.
CAUTION – The system should not be installed, operated, serviced or modified except
by qualified personnel who understand the danger of electric shock hazards and have
read and understood the user instructions. Any service or modification performed by
the user is done at the user’s own risk and voids all warranties.
CAUTION – If a motor is connected to the output of this unit, the frame should be
connected to the output protective ground terminal provided. Particular care should be
taken to mechanically guard such a motor, bearing in mind that unexpected behavior
is likely to result from the process of code development.
CAUTION – For continued protection against the risk of fire, replace the fuse with one
of the same type only (i.e., Fast Act Fuse 15A/250V).
• The system is intended for evaluation and development purposes and should only
be operated in a normal laboratory environment as defined by IEC 61010-1:2001
• Clean with a dry cloth only
• Operate flat on a bench, do not move during operation and do not block the
ventilation holes
• The system should not be operated without all the supplied covers fully secured in
place
• The system should not be connected or operated if there is any apparent damage
to the unit
• The unit is designed to be connected to the AC mains supply via a standard nonlocking plug. As the unit has no mains switch, this plug constitutes the means of
disconnection from the supply and thus the user must have unobstructed access
to this plug during operation.
2012 Microchip Technology Inc.
DS52074A-page 5
dsPICDEM™ MCHV-2 Development Board User’s Guide
NOTES:
DS52074A-page 6
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Table of Contents
Chapter 1. Introduction
1.1 Overview ...................................................................................................... 15
Chapter 2. Getting Started
2.1 Board Components ...................................................................................... 21
2.2 User Interface ............................................................................................... 22
2.3 Connecting the System ................................................................................ 23
2.4 Power Sequences ........................................................................................ 27
Chapter 3. Running the Demonstration
Chapter 4. Hardware
4.1 Power Factor Correction (PFC) Stage Board ............................................... 35
4.2 Power Module Stage .................................................................................... 40
4.3 Electrical Specifications ................................................................................ 49
Appendix A. Board Layout and Schematics
Appendix B. Debugging and Troubleshooting with MPLAB® 8
B.1 Setting up an Application for Debugging ...................................................... 65
B.2 Running the Application ............................................................................... 66
B.3 Debugging the Application ........................................................................... 67
B.4 Programming an Application ........................................................................ 69
B.5 Determining Device Support and Reserved Resources .............................. 70
B.6 Troubleshooting ........................................................................................... 70
B.7 Settings Dialog and Info Tab ........................................................................ 70
2012 Microchip Technology Inc.
DS52074A-page 7
dsPICDEM™ MCHV-2 Development Board User’s Guide
NOTES:
DS52074A-page 8
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Preface
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs and/
or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.
For the most up-to-date information on development tools, see the MPLAB® IDE on-line help.
Select the Help menu, and then Topics to open a list of available on-line help files.
INTRODUCTION
This preface contains general information that will be useful to know before using the
dsPICDEM™ MCHV-2 Development Board. Topics discussed in this preface include:
•
•
•
•
•
•
•
•
Document Layout
Conventions Used in this Guide
Warranty Registration
Recommended Reading
The Microchip Web Site
Development Systems Customer Change Notification Service
Customer Support
Document Revision History
DOCUMENT LAYOUT
This user’s guide describes how to use the dsPICDEM™ MCHV-2 Development
Board. The document is organized as follows:
• Chapter 1. “Introduction” – This chapter introduces the dsPICDEM™ MCHV-2
Development Board and provides a brief overview of its features.
• Chapter 2. “Getting Started” – This chapter provides information on getting
started with the dsPICDEM™ MCHV-2 Development Board.
• Chapter 3. “Running the Demonstration” – This chapter describes the
demonstration software that is preloaded on the device that accompanies the
dsPICDEM™ MCHV-2 Development Board.
• Chapter 4. “Hardware” – This chapter describes the hardware on the
dsPICDEM™ MCHV-2 Development Board.
• Appendix A. “Board Layout and Schematics” – This appendix provides
diagrams of the hardware layout, as well as schematic diagrams for the
dsPICDEM™ MCHV-2 Development Board.
• Appendix B. “Debugging and Troubleshooting with MPLAB® 8” – This
appendix provides debug and programming guidance for MPLAB 8 users.
2012 Microchip Technology Inc.
DS52074A-page 9
dsPICDEM™ MCHV-2 Development Board User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Arial font:
Italic characters
Represents
Referenced books
Emphasized text
A window
A dialog
A menu selection
A field name in a window or
dialog
A menu path
MPLAB® IDE User’s Guide
...is the only compiler...
the Output window
the Settings dialog
select Enable Programmer
“Save project before build”
A dialog button
A tab
A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
A key on the keyboard
Click OK
Click the Power tab
4‘b0010, 2‘hF1
Italic Courier New
Sample source code
Filenames
File paths
Keywords
Command-line options
Bit values
Constants
A variable argument
Square brackets [ ]
Optional arguments
Curly braces and pipe
character: { | }
Ellipses...
Choice of mutually exclusive
arguments; an OR selection
Replaces repeated text
#define START
autoexec.bat
c:\mcc18\h
_asm, _endasm, static
-Opa+, -Opa0, 1
0xFF, ‘A’
file.o, where file can be
any valid filename
mcc18 [options] file
[options]
errorlevel {0|1}
Initial caps
Quotes
Underlined, italic text with
right angle bracket
Bold characters
N‘Rnnnn
Text in angle brackets < >
Courier New font:
Plain Courier New
Represents code supplied by
user
DS52074A-page 10
Examples
File>Save
Press <Enter>, <F1>
var_name [,
var_name...]
void main (void)
{ ...
}
2012 Microchip Technology Inc.
Preface
WARRANTY REGISTRATION
Please complete the enclosed Warranty Registration Card and mail it promptly.
Sending in the Warranty Registration Card entitles users to receive new product
updates. Interim software releases are available at the Microchip web site.
RECOMMENDED READING
This user’s guide describes how to use the dsPICDEM™ MCHV-2 Development Board.
The device-specific data sheets contain current information on programming the specific
microcontroller or digital signal controller devices. Other useful documents are listed
below. The following Microchip documents are available and recommended as
supplemental reference resources:
MPLAB® C Compiler for PIC24 MCUs and dsPIC® DSCs User’s Guide
(DS51284)
This comprehensive guide describes the usage, operation and features of Microchip’s
MPLAB C compiler (formerly MPLAB C30) for use with 16-bit devices.
MPLAB® IDE User’s Guide (DS51519)
This user’s guide describes how to set up the MPLAB IDE software and use it to create
projects and program devices.
MPLAB X IDE User’s Guide (DS52027)
This document describes how to setup the MPLAB X IDE software and use it to create
projects and program devices.
MPLAB® Assembler, Linker and Utilities For PIC24 MCUs And dsPIC®
DSCs User’s Guide (DS51317)
This user’s guide describes the usage, operation, and features of the MPLAB® Assembler for PIC24 MCUs and dsPIC® DSCs (formerly MPLAB ASM30), which produces
relocatable machine code from symbolic assembly language for the PIC24 MCU and
dsPIC DSC families of devices. The assembler is a Windows console application that
provides a platform for developing assembly language code. The assembler is a port
of the GNU assembler from the Free Software Foundation.
Readme Files
For the latest information on using other tools, read the tool-specific Readme files in the
Readme subdirectory of the MPLAB IDE installation directory. The Readme files contain
updated information and known issues that may not be included in this user’s guide.
dsPIC33EP256MC506 Plug-In Module (PIM) for Internal Op amp
Configuration Information Sheet (DS52062)
This document provides device specific information for the dsPIC33EP256MC506
Internal Op amp configuration PIM.
To obtain any of these documents, visit the Microchip web site at www.microchip.com.
2012 Microchip Technology Inc.
DS52074A-page 11
dsPICDEM™ MCHV-2 Development Board User’s Guide
THE MICROCHIP WEB SITE
Microchip provides online support via our web site at www.microchip.com. This web
site is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the web site contains the following
information:
• Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives
DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE
Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive e-mail notification whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.
To register, access the Microchip web site at www.microchip.com, click on Customer
Change Notification and follow the registration instructions.
The Development Systems product group categories are:
• Compilers – The latest information on Microchip C compilers and other language
tools. These include the MPLAB® C compiler; MPASM™ and MPLAB 16-bit
assemblers; MPLINK™ and MPLAB 16-bit object linkers; and MPLIB™ and
MPLAB 16-bit object librarians.
• Emulators – The latest information on the Microchip MPLAB REAL ICE™
in-circuit emulator.
• In-Circuit Debuggers – The latest information on the Microchip in-circuit
debugger, MPLAB ICD 3.
• MPLAB IDE – The latest information on Microchip MPLAB IDE, the Windows®
Integrated Development Environment for development systems tools. This list is
focused on the MPLAB IDE, MPLAB SIM simulator, MPLAB IDE Project Manager
and general editing and debugging features.
• Programmers – The latest information on Microchip programmers. These include
the MPLAB PM3 device programmer and the PICkit™ 3 development
programmers.
DS52074A-page 12
2012 Microchip Technology Inc.
Preface
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
•
•
•
•
Distributor or Representative
Local Sales Office
Field Application Engineer (FAE)
Technical Support
Customers should contact their distributor, representative or field application engineer
(FAE) for support. Local sales offices are also available to help customers. A listing of
sales offices and locations is included in the back of this document.
Technical support is available through the web site at: http://support.microchip.com
DOCUMENT REVISION HISTORY
Revision A (July 2012)
This is the initial released version of the document.
2012 Microchip Technology Inc.
DS52074A-page 13
dsPICDEM™ MCHV-2 Development Board User’s Guide
NOTES:
DS52074A-page 14
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Chapter 1. Introduction
1.1
OVERVIEW
The Microchip dsPICDEM MCHV-2 Development Board is intended to aid the user in
the rapid evaluation and development of a wide variety of motor control applications
using PIC24 Microcontrollers (MCUs) and dsPIC® Digital Signal Controllers (DSCs).
This development system is targeted to control Brushless DC (BLDC) motors, Permanent Magnet Synchronous Motors (PMSM), and AC Induction Motors (ACIM) in sensor
or sensorless operation.
This flexible and cost-effective tool can be configured in different ways for use with
Microchip’s specialized Motor Control devices. The dsPICDEM MCHV-2 Development
Board is essentially a backward-compatible upgraded version of the dsPICDEM MCHV
Development System. The dsPICDEM MCHV-2 Development Board is designed to
support the PIC24F, PIC24E, dsPIC33F, and dsPIC33E Motor Control device families,
and offers a mounting option to connect a generic 100-pin Plug-In Module (PIM).
The system has a three-phase power module device that contains the motor inverter
and the gate driver’s circuitry. The circuit drives a BLDC, PMSM, or ACIM motor using
different control techniques without requiring any additional hardware. It also has
Power Factor Correction (PFC) circuitry in order to provide a full set of tools used in
motor control applications. Figure 1-1 provides a photograph of the dsPICDEM MCHV2. A block diagram that shows the main components of the system is provided in
Figure 1-2.
The rated continuous output current from the inverter is 6.5A (RMS). This allows up to
approximately 2 kVA output when running from a 208V to 230V single-phase input voltage in a maximum 30ºC (85ºF) ambient temperature environment. Therefore, the system is ideally suited for running a standard 3-Phase Induction Motor of up to 1.4 kW
(1.8 HP) rating or a slightly higher rated industrial servo-motor. The power module is
capable of driving other types of motors and electrical loads that do not exceed the
maximum power limit and are predominantly inductive. Furthermore, single-phase
loads can be driven using one or two of the inverter outputs.
The unit is capable of operating from 90V up to a maximum of 265V. A more detailed
explanation of power limitations is provided in Chapter 4. “Hardware”.
Note:
2012 Microchip Technology Inc.
It is recommended to carefully read the hardware section mentioned above
before attempting to use the system.
DS52074A-page 15
dsPICDEM™ MCHV-2 Development Board User’s Guide
FIGURE 1-1:
DS52074A-page 16
dsPICDEM™ MCHV-2 DEVELOPMENT BOARD
2012 Microchip Technology Inc.
SYSTEM BLOCK DIAGRAM
External
Programmer/
Debugger
PFC Stage Board
Power Module Board
Non-isolated
ICSP™ connector
VBUS
PFC Current
Feedback
Circuitry
Rectifier
PFC PWM
PFC Feedback Signals
15V PSU
15V, 3.3V, A-3.3V
Power
Module
MOTOR
Matrix
Board
Alternative
3.3V/A3.3V
Alternative
15V PSU
Hall
Sensors
Isolated User Interface
RS-232/
USB
Starter Kit
on Board
POT, PB, RESET
Introduction
DS52074A-page 17
90V-265V
EMI Choke,
In-rush current
protection, FUSE
Fault
Circuitry
PFC Fault
3.3VA-3.3V
HALL
Sensors
Circuitry
Current
Feedback
Circuitry
dsPIC® DSC
or
PIC24 MCU
TX
VAC Zero
Crossing
RX
PFC Circuitry
Voltage
Feedback
Circuitry
(VBUS and Motor)
User
Interface
VAC Voltage
Feedback
ICSP
commands
2012 Microchip Technology Inc.
FIGURE 1-2:
dsPICDEM™ MCHV-2 Development Board User’s Guide
1.1.1
Features
This section provides some of the key features of the dsPICDEM MCHV-2 Development
Board.
Motor Control Interfaces:
• Three-phase inverter bridge with a power rating of 400V/6.5A (J17)
• Hall sensors/Quadrature Encoder Interface (QEI) for sensored motor control
algorithms (J9)
• Phase voltage feedback for sensorless BLDC operation
• DC bus current sense resistor for single shunt vector control
• Phase current sense resistor for dual shunt vector control
• Overcurrent protection
• Support for PIC24 MCUs and dsPIC DSCs with internal op amps and comparators
Input/Output:
-
One isolated push button (S1)
Isolated reset push button (RESET)
Isolated 10 k potentiometer (POT1)
LED indicators for PWM outputs
Two LED indicators for debugging purposes (D2 and D19)
Isolated Communication Ports:
- UART communication via USB (J6)
- UART communication via RS-232 (J8)
Built-In Isolated Programmer/Debugger (J20):
- Starter Kit on Board programmer/debugger (daughter board)
Power Supply Connectors:
- Power Tab Fast-On connectors (BP1 and BP2) for the power stage
- Auxiliary 24V power input connector (J15) for the PIC24 MCU or dsPIC DSC
device and low-power circuitry (non-populated)
- Auxiliary 15V and 3.3V regulators for regulating auxiliary power supply (nonpopulated)
Programming Connectors:
- ICSP™ connector for programming a PIC24 MCU or dsPIC DSC device
(J18), non-isolated
- ICSP connector for programming the PIC18LF2450 USB module to the UART
Bridge (J1), isolated
- ICSP connector for programming the Starter Kit on Board Programmer/
Debugger, isolated (J1)
DS52074A-page 18
2012 Microchip Technology Inc.
Introduction
Power Factor Corrector:
-
Maximum input voltage 90 VAC-265 VAC
Current Feedback circuitry
VAC input voltage sensing
Zero-crossing detection
DC bus sensing
Overcurrent protection (The maximum power available is specified in
Section 4.3 “Electrical Specifications”.)
Built-In Power Supplies:
- 15V power supply, maximum power available 11W
- 3.3V power supply, maximum power available 2W
Additional Protection Circuitry:
- 250 VAC/15A fuse
- In-rush current limiter
- EMI filter
2012 Microchip Technology Inc.
DS52074A-page 19
dsPICDEM™ MCHV-2 Development Board User’s Guide
NOTES:
DS52074A-page 20
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Chapter 2. Getting Started
2.1
BOARD COMPONENTS
The dsPICDEM MCHV-2 Development Board consists of two stages:
• PFC Stage
The first stage is integrated by the Power Factor Correction (PFC) circuitry, the
full-bridge rectifier, the 15V power supply, and the 3.3V power supply.
• Power Module Stage
The second stage is the power module board. This board contains the Plug-In
Module (PIM) connector, the isolated user interface connectors, and the motor
drive.
Figure 2-1 shows an interior view.
FIGURE 2-1:
dsPICDEM™ MCHV-2 DEVELOPMENT BOARD ENCLOSURE VIEW
2012 Microchip Technology Inc.
DS52074A-page 21
dsPICDEM™ MCHV-2 Development Board User’s Guide
2.2
USER INTERFACE
The dsPICDEM MCHV-2 has the following components to interact with the user.
Figure 2-2 shows a photograph of the front of the system.
• Input/Output Control Switches (Figure 2-2):
- One isolated push button (S1)
- Isolated reset push button (RESET)
- Isolated 10 kΩ potentiometer (POT1)
- LED indicators for PWM outputs
- Two LED indicators for debugging purposes (D2 and D19 on the Power
Module Board; not shown in Figure 2-2)
• PWM Outputs (Figure 2-2)
- Enable and disable jumpers (J7)
• Isolated Communication Ports (Figure 2-2):
- UART communication via USB (J6)
- UART communication via RS-232 (J8)
- Communication Ports Selector (J2, J3)
• Built-In Isolated Programmer/Debugger (Figure 2-2)
- Starter Kit type programmer/debugger (J20)
• Motor Connectors (Figure 2-4):
- Three-phase inverter bridge connector with a power rating of 400V/6.5A (J17)
- Hall sensors/Quadrature encoder interface for sensored motor control
algorithms (J9)
• Power Supply Connector (Figure 2-3)
- AC power inlet specified for 40VAC-220VAC 10Amps max (J1)
FIGURE 2-2:
dsPICDEM™ MCHV-2 DEVELOPMENT BOARD (FRONT)
POT1
J8
J20
S1
J6
Reset
PWM LED
Indicators
J7
J2,J3
DS52074A-page 22
2012 Microchip Technology Inc.
Getting Started
FIGURE 2-3:
dsPICDEM™ MCHV-2 DEVELOPMENT BOARD (LEFT SIDE)
FIGURE 2-4:
dsPICDEM™ MCHV-2 DEVELOPMENT BOARD (RIGHT SIDE)
2.3
CONNECTING THE SYSTEM
CAUTION
The user must be aware of the operating procedures outlined below and ensure that
they are followed. Failure to do so may result in damage to the system.
2.3.1
Power Connections
It is recommended that cables used for the power connections should be terminated
with blue or red insulated crimp terminals. If crimp terminals are not used, care should
be taken to ensure that stray strands of wire do not short to adjacent terminals or the
enclosure. If possible, all wires should be stripped and tinned with solder before
connecting to the dsPICDEM™ MCHV-2 Development Board terminals.
2012 Microchip Technology Inc.
DS52074A-page 23
dsPICDEM™ MCHV-2 Development Board User’s Guide
For the AC mains supply input, standard double-insulated, 3-core flex cable should be
used with a minimum current rating of 10A (1 mm2 18 AWG). A computer power cable
can be used.
Note:
The system is designed for installation category II. Therefore, the incoming
mains cable should be wired into a standard non-locking 2-pin in addition
with a earth ground type plug.
The recommended output cable size is 1.0 to 1.5 mm2 (18-16 AWG) and it should have
a 600V rating. This cable should also be double insulated or have a protective ground
screen. Access to the terminal screws is provided via holes in the lid of the enclosure.
A slotted screwdriver should be used.
Note:
The user should only access the power terminals when the system is fully
discharged (see the“Safety Notice” on page 5).
Figure 2-7 provides the locations of all connectors. Corresponding tables that describe
each connection are provided in the relevant section.
FIGURE 2-5:
dsPICDEM™ MCHV-2 DEVELOPMENT BOARD CONNECTIONS
The power connections are listed in Table 2-1.
DS52074A-page 24
2012 Microchip Technology Inc.
Getting Started
TABLE 2-1:
POWER CONNECTIONS
Number
2.3.2
Name
Type
1
Neutral
Input
2
Earth Ground
Input
3
Live (Fused)
4
Motor Phase 1 (M1)
Output
5
Motor Phase 2 (M2)
Output
6
Motor Phase 3 (M3)
Output
7
Hall Sensor A (HA)
Input
8
Hall Sensor B (HB)
Input
Input
9
Hall Sensor C (HC)
10
Hall Sensors, 5V power supply terminal
Output
Input
11
Hall Sensors, Ground terminal
Output
Host/Communication Connections
A mini-USB-to-USB certified cable and a standard DB9 male-to-female cable should
be used to connect the dsPICDEM™ MCHV-2 Development Board to the host
computer.
The communication port connectors are listed in Table 2-2. Refer to Figure 2-5 for their
exact location.
TABLE 2-2:
I/O CONNECTORS
Number
12
Name
Type
USB-to-UART connector
Input/Output
13
RS-232- to-UART connector
Input/Output
14
USB connector for the Starter Kit on Board programmer/debugger
Input/Output
15
Non-isolated ICSP™ connector for device programming/debugging
Input/Output
16
Matrix board
Input/Output
2.3.3
Connection Sequence
The recommended connection sequence is listed below. The user should ensure that
the following sequence is met before connecting the system to the mains, a motor and
a host computer.
Note:
Before making any connection, verify that the system is not powered and it
is fully discharged. The system is completed discharged when the red LED
D13 is OFF.
1. Connect the motor terminals R, Y, and B (also known as RWB or 123 or ABC) to
the connection nodes M1, M2, and M3 (4, 5, and 6 in Figure 2-5), respectively.
2. Follow the next steps if position sensors are utilized to control the motor. If not,
proceed to step 3.
a) If the motor position is sensed with Hall Sensors, connect the terminals A, B,
and C to the connection nodes HA, HB, and HC (7, 8, and 9 in Figure 2-5),
respectively. Also, connect the positive terminal +5V to the connection node
+5V and the ground terminal to the connection node GND (10 and 11 in
Figure 2-5).
b) If the motor position is sensed with a Quadrature Encoder, connect the terminals phase A, phase B, and Index to the connection nodes HA, HB, and
HC (7, 8, and 9 in Figure 2-5), respectively.
2012 Microchip Technology Inc.
DS52074A-page 25
dsPICDEM™ MCHV-2 Development Board User’s Guide
3. Connect the communication ports.
a) If RS-232 communication is used, connect the DB9 male connector to the
RS-232 port. Connect the other end to the host PC (12 in Figure 2-5).
b) If USB communication is used, connect the mini-USB male terminal to the
mini-USB female connector labeled “USB” (12 in Figure 2-5). Connect the
other end to the host PC.
Note:
The Microchip serial emulator driver (mchpcdc.inf) should be installed on
your PC in order to activate the USB-to-Serial emulator. The emulator can
be obtained from the dsPICDEM MCHV-2 Development Board product
page: http://www.microchip.com/mchv2
4. Connect the USB cable to the mini-USB female connector labeled
“Program/Debug” (14 in Figure 2-5). Connect the USB male terminal to the USB
ports of the host PC.
Note:
The built-in programmer/debugger is supported in MPLAB IDE Version
8.83 (or higher) and MPLAB X Version 1.10 (or higher).
5. Ensure that the appropriate matrix board is plugged into the connector labeled
J4 and that the board is oriented so that its pins are correctly lined up, as shown
in Figure 2-6. Refer to Section 4.2.5 “Matrix Board” for more information
regarding the matrix board.
FIGURE 2-6:
MATRIX BOARD CONNECTION
6. Power Cord connection. Make sure the power cord is disconnected from the AC
mains before connecting the female terminal of the power cable to the AC input
connector (1, 2, and 3 in Figure 2-5) of the dsPICDEM™ MCHV-2 Development
Board.
Note:
DS52074A-page 26
The unit is designed to be connected to the AC mains supply via a standard
non-locking plug. As the unit has no mains switch, this plug constitutes the
means of disconnection from the supply. Therefore, the user must have
unobstructed access to this plug during operation.
2012 Microchip Technology Inc.
Getting Started
2.4
POWER SEQUENCES
The user should ensure that the following power sequences are adhered to.
2.4.1
Power-up Sequence
The unit is powered-up when the power cable is connected to the AC mains. To verify
that the unit is powered make sure that the LEDs D6, D13, D17 and D18 are ON.
Note:
2.4.2
The unit is designed to be connected to the AC mains supply via a standard
non-locking plug. As the unit has no mains switch, this plug constitutes the
means of disconnection from the supply and thus the user must have
unobstructed access to this plug during operation.
Power-down Sequence
1. Stop firing all power devices by removing the PWM OUTPUTS shunt jumper.
2. Turn OFF the incoming AC supply by disconnecting the power cord from the
mains.
3. Wait until the red DC bus LED indicator (D13) located next to the DC bus
connector is no longer illuminated (this will take 5 minutes or less).
2.4.3
Programming/Debugging an Application Code Using the
Built-in Starter Kit on Board Programmer/Debugger
The MPLAB Starter Kit on Board Programmer/Debugger for the dsPICDEM™ MCHV-2
Development Board may be used with MPLAB X, the free integrated development environment, which is available from Microchip’s web site (www.microchip.com). MPLAB X
allows the Starter Kit on Board to be used as an in-circuit debugger as well as a
programmer.
In-circuit debugging allows you to run, examine and modify your program using the
Starter Kit on Board hardware. This greatly assists you in debugging your firmware and
hardware together.
Special Starter Kit on Board software interacts with the MPLAB X application to run,
stop, and single-step through programs. Breakpoints can be set and the processor can
be reset. Once the processor is stopped, the register’s contents can be examined and
modified.
Note:
2.4.4
Refer to Appendix B. “Debugging and Troubleshooting with MPLAB®
8” for MPLAB IDE Version 8 debug and programming guidance.
Setting Up an Application for Debug
To prepare the application for debug:
1. Launch MPLAB X, and then open the application project. The related workspace
will be open. For information on projects and workspaces, refer to the MPLAB X
documentation listed in the “Recommended Reading” section of the “Preface”
in this user’s guide.
2. In the toolbar, click Debug Project. The build progress will be visible in the Build
tab of the Output window.
3. Once the build sequence is complete, MPLAB X will program the target device
and begin executing the application code in Debug mode, as shown in
Figure 2-7.
2012 Microchip Technology Inc.
DS52074A-page 27
DS52074A-page 28
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 Development Board User’s Guide
MPLAB® X WORKSPACE
FIGURE 2-7:
Getting Started
2.4.4.1
RUNNING THE APPLICATION IN DEBUG MODE
The Starter Kit on Board executes the application code in either real-time (Continue) or
steps (Step Into, Step Over, Run to Cursor, and Set PC at Cursor). Real-time execution
occurs when you select Continue in MPLAB X. Once the device code is halted, either
by clicking Pause or by a breakpoint, you can step.
Note:
When Pause is clicked to stop the program execution, all of the peripherals
are frozen.
To see how these options function, do the following:
1. Select Debug>Reset or click the Reset icon to reset the program.
2. Select Debug>Continue or click the Continue icon. Observe how the application
operates.
3. Select Debug>Pause or click the Pause icon to stop program execution. A green
solid arrow will mark the line of code in the File window where the program
halted.
4. Select Debug>Step Into or click the Step Into icon to step the program execution
once. The green solid arrow will move down one line of code in the File window.
Repeatedly click the button to step through the code.
5. Select Debug>Reset click the Reset icon to reset the program again.
6. Select Debug>Finish Debug Session or click the Finish Debug Session icon to
exit Debug mode.
2012 Microchip Technology Inc.
DS52074A-page 29
dsPICDEM™ MCHV-2 Development Board User’s Guide
2.4.4.2
DEBUGGING THE APPLICATION
MPLAB X provides an editor and several debug features such as breakpoints and
Watch windows to aid in application code debugging.
2.4.4.2.1
Editing Application Code
To view application code so it may be edited, do one of the following:
Select File>Open File to search for and open an existing code file, or double click a file
in the Project window to open an existing code file. See an example Project window in
Figure 2-8.
FIGURE 2-8:
PROJECT EXAMPLE
Existing Code
For more information on using MPLAB X to create and edit code, see the MPLAB X
Help.
2.4.5
Programming an Application
When the program is successfully debugged and running, the next step is to program
the device for stand-alone operation in the finished design. When doing this, the
resources reserved for debug are released for use by the application. To program the
application, use the following steps:
1. Select Debug>Finish Debug Session or click the Finish Debug Session icon to
exit Debug mode.
2. Select Run>Run Project or click the Run Project icon to build the application,
program the device, and release it from reset. Alternatively, click the Make and
Program Device icon to build the application and program the device (this action
does not release the device from reset).
At this point, the application code will run independently.
DS52074A-page 30
2012 Microchip Technology Inc.
Getting Started
2.4.6
Determining Device Support and Reserved Resources
Due to the built-in in-circuit debugging capability of ICD devices and the ICSP function
offered by the debugger, the Starter Kit on Board uses some on-chip resources when
debugging. It also uses program memory and file register locations in the target device
during debugging. These locations are not available for use by user code. In MPLAB
X, registers marked with an “R” in the register display represents reserved registers.
2.4.7
Troubleshooting
2.4.7.1
DEBUG CONNECTION PROBLEMS
While using the Starter Kit on Board as a debugger, you may receive the error “Starter
Kits (PKOB) not found” when programming the device. This can result from
communication being lost between the Starter Kit on Board and MPLAB X. To resolve
this:
1. Unplug the USB cable from the Starter Kit.
2. Plug the USB cable back into the Starter Kit.
MPLAB X should automatically reconnect to the Starter Kit on Board and display its
serial number (SN) in the same dialog box. Click the serial number followed by OK to
continue. If this does not work, do the following:
1. Check the USB connection between the PC and Starter Kit at both ends.
2. If using a USB hub, make sure it is powered.
3. Make sure the USB port is not in use by another device.
2.4.7.2
PROGRAMMING PROBLEMS
If during the course of developing your own application you can no longer program the
device, you may have set device configuration bits to code protect or some other state
that prevents programming. To view the settings of the configuration bits, select
Window>PIC Memory Views>Configuration bits.
2.4.8
Starter Kit on Board Information Tab
The firmware version and operating system (OS) version of the Starter Kit on Board can
be obtained from the Project Dashboard window of MPLAB X. The project dashboard
window also displays other useful information such as Starter Kit on Board VDD, target
device ID, and target device ID revision.
2012 Microchip Technology Inc.
DS52074A-page 31
dsPICDEM™ MCHV-2 Development Board User’s Guide
NOTES:
DS52074A-page 32
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Chapter 3. Running the Demonstration
This chapter describes the demonstration software that is preloaded on the dsPIC®
device that is included with the dsPICDEM MCHV-2 Development Board. This demonstration software, which is based on application note AN1162, demonstrates how to use
the dsPICDEM™ MCHV-2 Development Board for controlling an AC induction motor
(ACIM). For more information on this application note please refer to the following
Microchip web page: www.microchip.com/motor
Note:
The demonstration code preloaded on the dsPIC device is the latest version available at the time this board was packaged. There may be a newer
version of software available online. Visit www.microchip.com/motor to
download the latest version of software for the application note AN1162.
Follow these basic steps to run the demonstration:
Note 1:
Before making any connection, verify that the system is not powered and
it is fully discharged. The system is completed discharged when the red
LED D13 is off.
2:
One AC Induction Motor (part number: AC300023) is required to run this
demonstration.
1. Connect the system as described in 2.3.3 “Connection Sequence”. Ensure
that the Internal Op amp Configuration matrix board is connected to J4.
2. Power up the dsPICDEM™ MCHV-2 Development Board by connecting the
power cord to the mains. To verify that the unit is powered, make sure that the
LEDs D6, D13, D17, and D18 are ON. The very first time you connect the system
to any host PC, you should briefly see a popup balloon in the system tray (lower
right of desktop) that states: 1) new hardware has been found, 2) drivers are
being installed, and 3) new hardware is ready for use. If you do not see these
messages and the Starter Kit on Board does not work, try reconnecting the USB.
If this does not work, see Section 2.4.7 “Troubleshooting”.
Note:
The unit is designed to be connected to the AC mains supply via a standard
non-locking plug. As the unit has no mains switch, this plug constitutes the
means of disconnection from the supply. Therefore, the user must have
unobstructed access to this plug during operation.
3. When powered up, the application will turn on the LEDs PWM1L1, PWM1L2 and
PWM1L3.
To use the demonstration application, follow these steps:
a) Make sure the PWM OUTPUT shunt jumper is installed.
b) To start/stop the motor, press the switch labeled “PUSHBUTTON”.
c) Use the potentiometer labeled “POT” to control the direction and speed of
the motor.
2012 Microchip Technology Inc.
DS52074A-page 33
dsPICDEM™ MCHV-2 Development Board User’s Guide
NOTES:
DS52074A-page 34
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Chapter 4. Hardware
This chapter describes the hardware components of the dsPICDEM™ MCHV-2
Development Board.
Topics covered include:
• Power Factor Correction (PFC) Stage Board
• Power Module Stage
• Electrical Specifications
4.1
POWER FACTOR CORRECTION (PFC) STAGE BOARD
This board has two main functions; the first one is to provide the required power supplies to the power module board stage. The second function is to create the power bus
rail that will be used to energize the motor through the power module.
Note:
4.1.1
The circuits for the hardware described in this section are shown in
Appendix A. “Board Layout and Schematics”.
AC Supply Input
The AC supply input stage of the board consists of the following components,:
• F1 –15A/250 VAC fast acting fuse (only replace with a part of the same rating)
• C1, C2 – Film capacitors to aid in the suppression of AC supply transients and to
also provide a low impedance return path for any currents that flows from the
power device tabs to the heat sink and enclosure due to capacitive coupling
• C3 – Film capacitor to aid in the suppression of AC supply transients.
• R1 – A metal oxide varistor located across the incoming supply lines to suppress
high energy transients.
• L1 – 2.3 mH/15A Choke inductor for suppressing EMI
• C4 – Film capacitor to aid in the suppression of EMI
• C5, C6 – Film capacitors to aid in the suppression of AC supply transients and to
also provide a low impedance return path for any currents that flow from the
power device tabs to the heat sink and enclosure due to capacitive coupling
• R7 – A 1W high-voltage resistor, which acts to discharge C4
• R6 – A resistor with a negative temperature coefficient that acts to limit the surge
of input current that would occur at initial application of power due to the discharged DC bus capacitance. The initial nominal cold resistance is 1 Ohm, which
reduces once current flows and the device heats up.
• BR1 – A single-phase bridge rectifier to convert the incoming AC into DC suitable
for input to the power conditioning stage.
2012 Microchip Technology Inc.
DS52074A-page 35
dsPICDEM™ MCHV-2 Development Board User’s Guide
4.1.2
Active Power Factor Correction (PFC)
The active PFC circuit is essentially a simple boost chopper with the control aimed at
shaping the input current to follow the incoming mains supply waveform. The purpose
of the different parts of the circuit is described below.
• L6 – A high frequency axial inductor with a single layer winding on a ferrite core.
This component is in series with the main inductor (L7) to reduce the effect of the
self-capacitance of its winding. Without L6, significant high frequency (15 MHz)
ringing of the inductor current occurs at every transistor turn-on, which would
increase EMI and the PFC transistor switching loss.
• L7 – A power inductor with three stacked toroidal cores made from a
powdered-iron material to limit the core loss while maintaining good energy
storage density. The particular cores used are Magnetics 0077083A7. A simple
multi-layer winding is used which results in moderate copper loss but significant
self-capacitance. Sixty-six turns of 1.5 mm diameter enameled copper wire is
used. The design offers a good compromise between cost, core loss and size for
this application. The nominal inductance is 1 mH at 10A.
• Q2 – A 600V TO-247 IGBT. As the tab of the device is not isolated, a thermally
conductive insulator is used. When closed, Q2 increase the energy stored in the
inductor L7. When open, energy stored in the inductance is transferred to the DC
bus capacitors (C30-C32). Energy is also drawn from the AC supply during this
time. By appropriate control of the switches, the input current waveform can be
profiled to obtain good power factor and low harmonic distortion.
• D12 – A 600V TO-247 diode optimized for use at high switching frequency. As the
tab of the device is not isolated, a thermally conductive insulator is used.
• C28, R31, R32, R33, D11 – A “snubber” that acts to damp high frequency
oscillations and limit the rate of change of voltage across Q2
• C30, C31, C32 – 470 µF/450V electrolytic capacitors which act as the main DC
bus energy storage capacitors.
• R25, R26, C25, D8, Q1, R27, R28 – A lever shifter to boost the PWM signal coming
from the dsPIC DSC
• U19 – Microchip TC4421A gate drive IC. This contains a low resistance complementary push-pull MOSFET pair and input circuitry suitable for interfacing to a
wide range of input voltages. It is an ideal choice for this application allowing up to
10A of peak gate drive current to switch Q2 rapidly and therefore achieve low
switching loss. It also has a small footprint allowing it to be located physically
close to the transistors allowing a low inductance gate circuit layout.
• D9, C26, C27 – These components act to provide a dynamic level shifting circuit
to U19 while Q2 switch. Inductance of the power tracking between the source of
Q2 due to the physical board layout means there is a substantial transient voltage
between the +15V supply point reference at R28 and the source of Q2. This
simple low cost circuit allows the power supply of U19 to move transiently.
• R75, R29 and D10 – These components control the current and voltage to turn on
and turn off the IGBT. R29 controls the rising time and the di/dt when the IGBT is
turned on. R29 in parallel with R75 control the falling time and the di/dt when the
IGBT is turned off.
• The power factor corrector design is based on the application note AN1106, for
more information on this application note please refer to one of the following
Microchip Web sites:
- www.microchip.com/smps
- www.microchip.com/motor
DS52074A-page 36
2012 Microchip Technology Inc.
Hardware
4.1.3
PFC Feedback Circuitry
In a DSC-based PFC, the relevant analog parameters and the control loops need to be
redefined and discretized. This enables changeover from existing hardware to its digital
counterpart easier and more logical.
The PFC is an AC-to-DC converter, which converts the AC input voltage to a DC voltage and maintains sinusoidal input current at a high input power factor. In a DSC-based
PFC, three inputs signals are required to implement the current control.
The input rectifier (BR1) converts (shown in Section 4.1.1 “AC Supply Input ”) the
alternating voltage at power frequency into unidirectional voltage. This rectified voltage
is fed to the chopper circuit to produce a smooth and constant DC output voltage to the
load. The chopper circuit is controlled by the PWM switching pulses generated by the
dsPIC DSC device, based on three measured feedback signals:
•
•
•
•
Rectified input voltage
AC input voltage zero-crossing event
Rectified input current
DC bus voltage
The rectified input voltage is measured in two stages:
• Signal conditioning: R22, R23, R24, C24, and D7 convert and filter the AC input
voltage waveform from 90-265 VAC to 0-3.3 VAC. D7 limit the maximum voltage
to 3.3V. C24 along with R22, R23 form a low-pass filter. The circuit is shown in
Appendix A.
• Amplification: the operational amplifier MCP6024 (U13B) amplifies the conditioned AC input voltage; R45, R46, R47, R48, R49 and R51 set the gain. The
MC6024 also shifts the conditioned AC input voltage to a 1.65V DC level. Therefore, the voltage applied to the dsPIC DSC ADC channel varies within 0-3.3V. The
offset is controlled by R50, R53, and R54. R39 and C39 filter out the
high-frequency noise.
AC input voltage zero-crossing event is sensed using a voltage divider (R2-R5) and two
opto-couplers (U1 and U2). The circuit is shown in Appendix A.
Rectified input current is measured using the shunt resistor R34 and the operational
amplifier MCP6024 (U13A); R38, R39, R40, R41, R42 and R43 set the gain. R43 shifts
the voltage present at the shunt resistor to a 1.65V DC level. Therefore, the voltage
applied to the dsPIC DSC ADC channel varies within 0-3.3V. The offset is controlled by
R43, R53, and R54. R44 and C37 filter out the high-frequency noise. The circuit is
shown in Appendix A.
DC bus voltage, the DC bus voltage is sensed at the power module stage. Please refer
to Section 4.2.4 “Feedback Circuitry”.
4.1.4
Power Supplies
The PFC stage board provides the 15 volts power supply required to fire the power
module IGBTs. The 15 volts power supply is built using a low power off-line SMPS primary switcher. The switching frequency is fixed to 60 kHz, the feedback signal to the
power supply is provided by the opto-coupler. The output voltage is regulated at 15V
with a maximum output current of 0.750A, the resultant maximum power is 11.25W.
The input voltage range for this power supply is from 90 VAC to 260 VAC.
The PFC stage board also provides the 3.3 volts to powering-up the PIC24 MCU or
dsPIC DSC, the isolation circuitry, the communication ports, the Starter Kit programmer, etc. It also generates the 3.3 volts for powering the analog circuits and the analog
reference for the Analog-To-Digital Converter (ADC) module.
2012 Microchip Technology Inc.
DS52074A-page 37
dsPICDEM™ MCHV-2 Development Board User’s Guide
The 3.3 volts rail is created using a step-down regulator which is attached to the 15
volts regulator. The maximum output current is 0.650A, thus the resultant maximum
power is 2.145W.
The 3.3 volts rail required for the analog circuits such as the current feedback and the
Analog-to-digital converter is generated by a decoupling circuitry attached to the 3.3 volts
regulator.
4.1.5
Fault Circuitry
Given the development nature of the system, robust independent FAULT protection is
provided on the PFC Stage Board. Two different fault categories are used to indicate a
FAULT to the PIC24 MCU or dsPIC DSC.
DC Bus Overcurrent, this fault signal is generated when the maximum current limit of
15A is reached. The comparison of the threshold value and the actual current is done
by comparator U8. The threshold limit is set by R56 and R57. R69 is a shunt jumper
resistor that can disconnect the overcurrent fault to the PIC24 MCU or dsPIC DSC.
DC Bus Overvoltage, this fault signal is generated when the maximum voltage limit on
the DC bus rails is reached. The threshold value is set to 432V. The comparison of the
threshold value and the actual DC bus voltage is done by comparator U7. The threshold limit is set by R60, R61 and R62. R66 is a shunt jumper resistor that can disconnect
the overvoltage fault to the PIC24 MCU or dsPIC DSC.
Note:
4.1.6
Both comparators are of open-drain type and need an external pull-up
resistor. Both circuits share this pull-up resistor creating an OR condition at
the output.
Board Connectors
The PFC stage board has four tab fast-on connectors, one AC inlet and one 14-pin
keyed connector for attaching a flat cable.
For the AC mains supply input, standard double-insulated, 3-core flex cable should be
used with a minimum current rating of 10A (1 mm2 18 AWG). A computer power cable
can be used. The recommended cable size is 1.0 to 1.5 mm2 (18-16 AWG) and it should
have a 600V rating. This cable should also be double insulated or have a protective
ground screen.
Note 1:
2:
The system is designed for installation category II. Therefore, the
incoming mains cable should be wired into a standard non-locking 2-pin
in addition with an earth ground type plug.
The unit is designed to be connected to the AC mains supply via a
standard non-locking plug. As the unit has no mains switch, this plug
constitutes the means of disconnection from the supply. Therefore, the
user must have unobstructed access to this plug during operation.
The tab fast-on connectors AC_N and AC_L provides the connections to the bridge
rectifier BR1. The recommended cable size is 16-18 AWG or 1.0 to 1.5 mm2. It is also
recommended that cables used for the power connections should be terminated with
blue or red crimp terminals. If crimp terminals are not used, care should be taken to
ensure that stray strands of wire do not short to adjacent terminals or the enclosure. If
possible, all wires should be stripped and tinned with solder before connecting to the
dsPICDEM MCHV-2 Development Board terminals.
DS52074A-page 38
2012 Microchip Technology Inc.
Hardware
The fast-on connectors PFC_OUT “+” and PFC_OUT “-” provide DC bus voltage to the
Power Module Stage. The recommended cable size is 16-18 AWG or 1.0 to 1.5 mm2. It
is also recommended that cables used for the power connections should be terminated
with blue or red crimp terminals. If crimp terminals are not used, care should be taken to
ensure that stray strands of wire do not short to adjacent terminals or the enclosure. If
possible, all wires should be stripped and tinned with solder before connecting to the
dsPICDEM MCHV-2 Development Board terminals.
Note:
The user should only access the power terminals when the system is fully
discharged (see the “Safety Notice” on page 5).
The 14-pin keyed connector provides the signals and power supply rails from and to
the Power Stage. These signals are shown in Table 4-1.
TABLE 4-1:
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2012 Microchip Technology Inc.
14-PIN KEYED CONNECTORS
Name
3.3V, digital rail
Not Connected
3.3V, analog rail
AC input voltage feedback
Ground, analog rail
AC input current feedback
Fault (Overcurrent OR Overvoltage condition)
VAC zero crossing signal
Ground, digital rail
PWM signal for the PFC IGBT
Ground, digital rail
Not Connected
15V
Not Connected
Type
Output
NC
Output
Output
Output
Output
Output
Output
Output
Input
Output
NC
Output
NC
DS52074A-page 39
dsPICDEM™ MCHV-2 Development Board User’s Guide
4.2
POWER MODULE STAGE
This board has two main functions; the first is to control the motor using a PIC24 MCU
or dsPIC DSC and a Power Module and the associated feedback signals for each
control algorithm. The second is to provide a safe method in which to interact with the
user.
Note:
4.2.1
The circuits for the hardware described in this section are shown in
Appendix A. “Board Layout and Schematics”.
Plug-In Module Configuration
Table 4-2 summarizes the pinout functionality of the PIM (U11).
TABLE 4-2:
PIM
Pin #
dsPICDEM™ MCHV-2 DEVELOPMENT BOARD PIM PINOUT
FUNCTIONALITY
Signal Name
Routed
via
Matrix
Board
Pin Out Description
1
2
3
4
5
6
7
8
9
10
11
12
DBG_LED1
VDD
PWM1H3
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Debug LED 1
N/A
PWM Output - 3H
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
No
No
No
No
No
No
No
No
No
No
No
No
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
MCLR
N/A
VSS
VDD
N/A
FAULT
PFC_FLT
PIM_INDX/POT/V_M3
PIM_QEB/IB/V_M2
PIM_QEA/IA/V_M1
PIM_IBUS/VBUS
PIM_IB/POT
PIM_IA/IPFC
PGC
PGD
AVDD/2
PIM_REC_NEUTR
AVDD
AVSS
PIM_POT
PIM_POT
Device Master Clear
N/A
N/A
N/A
N/A
IBUS Current Fault (active-low logic)
IPFC fault (overvoltage or overcurrent)
Hall sensor/Current sense/Voltage feedback signal
Hall sensor/Current sens /Voltage feedback signal
Hall sensor/Current sense/Voltage feedback signal
DC bus voltage (downscaled)
AC input zero-cross/AC input voltage (downscaled)/Potentiometer
PFC current (buffered)
Device programming clock line
Device programming data line
Reference voltage (half of AVDD voltage)
Reconstructed motor neutral line voltage
Analog supply
Analog supply
Potentiometer signal
Potentiometer signal
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
No
No
Yes
Yes
DS52074A-page 40
2012 Microchip Technology Inc.
Hardware
TABLE 4-2:
dsPICDEM™ MCHV-2 DEVELOPMENT BOARD PIM PINOUT
FUNCTIONALITY (CONTINUED)
PIM
Pin #
Signal Name
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
PIM_GEN2
PIM_DC_BUS
VSS
VDD
PIM_VAC_VOL2
PIM_IPFC_C_SHUNT
PIM_PFC_L
PIM_V_M1/POT
PIM_V_M2
PIM_V_M3/IBUS
N/A
VSS
VSS
HB/QEB
HC/INDX
RX
TX
N/A
N/A
N/A
N/A
N/A
N/A
N/A
PIM_FLT_OUT2
PIM_FLT_OUT1
DBG_LED2
HOME
VDD
OSCI
OSCO
VSS
PIM_IBUS+
PIM_IBUSBTN
N/A
RX
PIM_PFC_PWM
HA/QEA
PIM_IB+
PIM_IA+
VSS
HB/QEB
PIM_HALLC/INDX/STP_PWM
PIM_PFC_PWM
2012 Microchip Technology Inc.
Pin Out Description
General I/O
DC bus voltage (downscaled)
N/A
N/A
AC input voltage (unbuffered)
PFC shunt signal
PFC shunt signal
Hall sensor / Current sense / Voltage feedback signal
Hall sensor / Current sense / Voltage feedback signal
Hall sensor / Current sense / Voltage feedback signal
N/A
N/A
N/A
Hall sensor / QEI input
Hall sensor / QEI input
UART Receive
UART Transmit
N/A
N/A
N/A
N/A
N/A
N/A
N/A
General I/O
General I/O
Debug LED #2
Home signal for QEI (test point only)
N/A
Crystal oscillator in
Crystal oscillator out
N/A
IBUS shunt signal
IBUS shunt signal
Push Button
N/A
UART Receive
PFC PWM output
Hall sensor / QEI input
IB shunt signal
IA shunt signal
N/A
Hall sensor / QEI input
Hall sensor / QEI input
PFC PWM output
Routed
via
Matrix
Board
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
No
No
No
No
No
No
Yes
Yes
No
No
No
Yes
No
Yes
Yes
No
No
Yes
Yes
DS52074A-page 41
dsPICDEM™ MCHV-2 Development Board User’s Guide
TABLE 4-2:
PIM
Pin #
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
dsPICDEM™ MCHV-2 DEVELOPMENT BOARD PIM PINOUT
FUNCTIONALITY (CONTINUED)
Signal Name
VACZX
HA/QEA
N/A
PIM_GEN1
N/A
TX
N/A
VDD
N/A
N/A
N/A
N/A
N/A
N/A
PWM1L1
PWM1H1
N/A
N/A
N/A
PWM1L2
PWM1H2
PWM1L3
Pin Out Description
Routed
via
Matrix
Board
AC input zero-cross
Hall sensor/QEI input
N/A
General I/O
N/A
UART Transmit
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
PWM Output - 1L
PWM Output - 1H
N/A
N/A
N/A
PWM Output - 2L
PWM Output - 2H
PWM Output - 3L
4.2.2
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Power Supplies
The system default configuration is to get the 15V, 3.3V and 3.3V analog rail voltages
from the PFC stage board. However, it is also possible to use an external 24V power
supply to generate these voltages.
U19, C70, C73, C71 and C74 regulate the voltage applied to the system via J15 (28V
max). The output of the regulator is connected to the system through R109. The circuit
is shown in Appendix A. “Board Layout and Schematics”.
Note:
It is the responsibility of the user to populate these components if an
external power supply is used.
U18, C67, R110, C68, D16, D15, L3, R111, R112 and C75 regulate the 15 volts to create a 3.3V digital rail. This auxiliary 3.3V digital rail is applied to the system through
R106. The circuit is shown in Appendix A. “Board Layout and Schematics”.
Note:
DS52074A-page 42
It is the responsibility of the user to populate these components if an
external power supply is used.
2012 Microchip Technology Inc.
Hardware
R114, R107, C69, and C72 form a decoupling circuit for generating a 3.3V rail for the
analog circuitry such as the ADC reference and the current feedback reference. This
auxiliary 3.3V analog rail is applied to the system through R108.
Note:
4.2.3
It is the responsibility of the user to populate these components if an
external power supply is used.
Power Module
The three-phase inverter is embedded in a power module (U16). This power module
contains:
•
•
•
•
•
•
•
•
•
•
600V/30A 3-phase IGBT Inverter Bridge
Gate driver circuitry for each IGBT
Three Independent connections to the negative DC bus for current sensing
Short-circuit protection circuitry
Thermal Shutdown
Gate Driver Power Supply Undervoltage protection
Gate Driver Power Supply Overvoltage protection
Single-grounded power supply
Isolation of 2.5 kV per minute
Maximum switching frequency: 20 kHz
The PIC24 MCU or dsPIC DSC provides the PWM signals to this power module in
order to turn on/off the IGBT, and therefore apply power to the motor phases.
R95 and R124 set the threshold limit for the overcurrent circuitry. If this voltage is
greater than 0.5V (typical), a fault signal is asserted and the low-side IGTBs are turned
off. R94 and C53 form a low-pass RC filter that filters out the frequencies above
88.4 kHz.
C56 sets the fault pulse duration, the value of C56 is given by the following equation:
C56 = 18.3E-6 x 1.8E-3 seconds. Therefore, the fault pulse duration is 54 µs.
The power module fault output pin (VFO) is open-collector configured. R50 pulls up the
fault output to the analog 3.3V rail. R53 and C40 form a low-pass RC filter that filters
out the frequencies above 53 kHz.
For more information about this power module please refer to the manufacturer’s data
sheet.
4.2.4
Feedback Circuitry
The Power Module Stage provides three different methods to sense the motor position.
These signals are also useful to determine the speed, the torque, current consumption
and the applied voltage.
Hall Sensors, the hall sensors circuitry is designed to attach open-collector configured
sensors. It has a pull-up resistor at the hall sensor inputs (R23, R24, and R25) and a
voltage divider (R26-R29, R27-R30, R28-R31) in order to scale the input waveforms to
the PIC24 MCU or dsPIC DSC logic levels. C25-C27 and R26-R28 form a low-pass RC
filter for each hall sensor signal.
Phase Voltage Feedback circuitry for each phase is compounded by a voltage divider,
a current limiter and a low-pass RC filter. R79, R84 and R92 scale the phase M1 voltage in order to match the PIC24 MCU or dsPIC DSC logic levels. R85 limits the current
going to the ADC pin (< 6mA). C51, R79 and R84 form the low-pass filter. The phase
M2 and M3 has the exact same circuitry as shown in the schematic.
2012 Microchip Technology Inc.
DS52074A-page 43
dsPICDEM™ MCHV-2 Development Board User’s Guide
DC Bus Voltage Feedback is compounded by a voltage divider and a low-pass RC
filter. R75, R76 and R81 scale the DC bus voltage in order to match the PIC24 MCU or
dsPIC DSC logic levels. C47, R75 and R76 form the low-pass filter.
Inverter Leg Shunt Resistor Feedback, a shunt resistor is located between the emitter of the low side switches M1 and M2 and the “-DC bus”. A simple differential amplifier
circuit is used as shown in Appendix A. “Board Layout and Schematics”. The
operation of the circuit used for the M1 phase leg is described below:
The current is measured using the shunt resistor R86 and the operational amplifier
MCP6024 (U13A); R32, R33, R34, R36, and R37 set the gain. R38 shifts the voltage
present at the shunt resistor to a 1.65V DC level. Hence the voltage applied to the
PIC24 MCU or dsPIC DSC ADC channel varies within 0-3.3V. The offset is controlled
by R59, R60, R38 and U13D. R35 and C34 filter out the high-frequency noise.
The same topology is used for the phase M2.
DC Bus Current Feedback, a shunt resistor is located between the shunt resistors of
side switches M1 and M2 and the “-DC bus”. A simple differential amplifier circuit is
used as shown in the schematic. The operation of the circuit used for sensing the DC
bus current is described as follows:
The current is sensed using the shunt resistor R95 and the operational amplifier
MCP6024 (U13C); R49, R51, R52, R56, and R57 set the gain. R58 shifts the
voltage present at the shunt resistor to a 1.65V DC level. Hence the voltage
applied to the PIC24 MCU or dsPIC DSC ADC channel varies within 0-3.3V. The
offset is controlled by R59, R60, R58 and U13D. R54 and C42 filter out the
high-frequency noise.
Note:
4.2.5
It is possible to select any of these feedback signals using jumpers J12, J13
and J14, please refer to Section 4.2.9 “User Interfaces” for more
information.
Matrix Board
The functions of matrix board interface are to:
• Connect the appropriate signals to the correct pins on the Plug-In Module
• Disconnect signals and provide isolation on signal paths that are not being used in
a particular hardware configuration
The matrix board header has two rows of pins. One row (pin 1 to pin 25) hosts signals
from different signal sources while the other (pin 26 to pin 50) hosts connections to the
Plug-In Module. A block diagram describing the matrix board interface is shown in
Figure 4-1.
FIGURE 4-1:
MATRIX BOARD BLOCK DIAGRAM
Shunt resistor signals (Direct)
Reconstructed motor neutral voltage
Feedback signals
(Hall sensor/Phase voltage/Shunt resistor)
Matrix
Board
Plug-In Module
DC bus voltage
Potentiometer
DS52074A-page 44
2012 Microchip Technology Inc.
Hardware
The dsPICDEM MCHV-2 Development Board uses discrete op amps (U13) to amplify
the shunt resistor signals. Alternatively, some of the PIC24 MCUs or dsPIC DSCs
include on-board op amps that can be used for this purpose. To accommodate these
two basic configurations, the dsPICDEM MCHV-2 Development Board comes with two
matrix boards.
The Internal Op amp Configuration matrix board is used to configure the development
board to use op amps internal to the PIC24 MCU or dsPIC DSC. This matrix board
bypasses the current feedback circuitry on the Power Module Board and directly connects
the shunt resistor signals to appropriate pins of the Plug-In Module.
The External Op amp Configuration matrix board is used to configure the development
board to use the current feedback circuitry on the Power Module Board. This matrix board
disconnects the shunt resistor signals from the Plug-In Module pins and connects the current
feedback circuitry output to the appropriate Plug-In Module pins.
Note:
4.2.6
Unless specified in the Plug-In Module information sheet, all PIMs are compatible only with the External Op amp Configuration matrix board. Certain
Plug-In Modules are designed to work with the Internal Op amp Configuration matrix boards only. In this case, the corresponding PIM information
sheet (available at www.microchip.com/pims) will explicitly state this.
Fault Circuitry
In addition to the fault signal generated by the power module, the system can also
create a DC bus overcurrent fault.
DC Bus Overcurrent, this fault signal is generated when the maximum current limit of
15A is reached. The comparison of the threshold value and the actual current is done
by comparator U14. The threshold limit is set by R42 and R47.
Note:
4.2.7
The comparator is open-drained and needs an external pull-up resistor.
Both the power module output and the comparator output share this pull-up
resistor creating an OR condition at the output.
Isolation
The power supply used by the push buttons, communication ports, and the Starter Kit
on Board programmer/debugger is isolated from the power supply used by the power
module or the PIC24 MCU or dsPIC DSC. An isolated 3.3V rail is generated from the
digital 3.3V rail using a DC-to-DC converter (U10). This converter provides galvanic
isolation rated up to 1000 VDC/1 second.
4.2.8
Communication Ports
The power module stage board provides two methods for transmitting/receiving data to
and from the system. Both communication methods are powered using the isolated
3.3V rail.
UART-to-USB communication port is based on a PIC18LFJ2450 device with a serial
emulator firmware. This device translates the USB signals to PIC24 MCU or dsPIC
DSC UART compatible signals. Isolation for the UART-to-USB communication port is
provided by U25.
UART-to-RS-232 communication port is based on a RS-232 transceiver (U9). This
device translates the PIC24 MCU or dsPIC DSC UART signals to UART compatible
signals. Isolation for the UART-to-RS-232 communication port is provided by U25.
Shunt jumpers J2 and J3 select the communication port. Table 4-3 shows the possible
configurations.
2012 Microchip Technology Inc.
DS52074A-page 45
dsPICDEM™ MCHV-2 Development Board User’s Guide
TABLE 4-3:
COMMUNICATION PORT CONFIGURATION
Designator
Position
J2
1-2
2-3
1-2
2-3
J3
4.2.9
Description
Connects UART receive line to RX.
Connects USB receive line to RX.
Connects UART transmit line to TX.
Connects USB transmit line to TX.
User Interfaces
There are two types of user interfaces, isolated and non-isolated:
• Isolated interfaces:
- Potentiometer labeled “POT” (R14)
- RESET push button
- PUSH BUTTON (S1)
- PWM OUTPUT enable shunt jumper (J7)
- Communication Port Selection shunt jumper (J2 and J3)
- ICSP programmer/debugger connector for the Starter Kit on Board (J4)
- ICSP programmer/debugger connector for the UART-to-USB converter (J1)
• Non-Isolated interfaces:
- 15V Power Supply LED (D17)
- 3.3V Power Supply LED (D18)
- PWM2L1, PWM1L1, PWM1H1, PWM1L2, PWM1H2, PWM1L3, PWM1H3
LEDs
- USB communication LED (D1)
- USB cable connected LED (D3)
- Starter Kit on Board USB cable connected LED (D21)
- Starter Kit on Board Power On LED (D19)
- ICSP programmer/debugger connector for the PIC24 MCU or dsPIC DSC (J18)
- Feedback Selection Shunt Jumpers J11, J12, J13, and J14
- Debug LEDs (D2 and D19)
Table 4-4 shows the multiple feedback signals that can be selected.
TABLE 4-4:
Designator
Position
J11
1-2
J12
J13
J14
DS52074A-page 46
MULTIPLE FEEDBACK SIGNALS
3-4
5-6
1-2
3-4
5-6
1-2
3-4
5-6
1-2
3-4
5-6
7-8
Description
Connects AC input voltage zero-crossing event to
VACZX_VAC_POT
Connects AC input voltage to VACZX_VAC_POT
Connects the POT voltage to VACZX_VAC_POT
Connects Phase M1 shunt current feedback to MONITOR_1
Connects Phase M1 voltage feedback to MONITOR_1
Connects Hall A/QEA sensor signal to MONITOR_1
Connects Phase M2 shunt current feedback to MONITOR_2
Connects Phase M2 voltage feedback to MONITOR_2
Connects Hall B/QEB sensor signal to MONITOR_2
Connects DC bus shunt current feedback to MONITOR_3
Connects Phase M3 voltage feedback to MONITOR_3
Connects Hall C/INDEX sensor signal to MONITOR_3
Connects the POT voltage to MONITOR_3
2012 Microchip Technology Inc.
Hardware
4.2.10
Hardware for Programming and Debugging
The dsPICDEM™ MCHV-2 Development Board, with its built-in Starter Kit on Board
debugger/programmer, provides an all-in-one solution for debugging and programming
applications using MPLAB IDE. The debugging/programming operations are controlled
by a PIC24FJ256GB106 MCU. The PIC24FJ256GB106’s built-in USB engine provides
the communications interface between the Starter Kit on Board and the host PC.
Power to the Starter Kit on Board is provided via the isolated 3.3V rail. The
PIC24FJ256GB106 MCU accomplishes debugging or programming of the target
PIC24 MCU or dsPIC DSC by controlling the target’s MCLR, PGC1/EMUC1, and
PGD1/EMUD1 signals. A Microchip 25LC256 serial EEPROM is used to store the
serial number and debug control information. Isolation for the MCLR, PGC1/EMUC1,
and PGD1/EMUD1 signals is provided by the digital isolators U3, U6, U22 and U7.
4.2.11
Board Connectors
Figure 4-2 provides the locations of the connectors. The Power Module Stage Board
connectors are listed in Table 4-4.
FIGURE 4-2:
POWER MODULE BOARD CONNECTORS
11
13
10
9
8
7
12
6
15
16
1
4
2
5
14
3
17
2012 Microchip Technology Inc.
DS52074A-page 47
dsPICDEM™ MCHV-2 Development Board User’s Guide
TABLE 4-5:
POWER MODULE STAGE BOARD CONNECTORS
Number
Designator
Type
1
Motor Phase 1 (M1)
Output/Power
2
Motor Phase 2 (M2)
Output/Power
3
Motor Phase 3 (M3)
Output/Power
4
DC Bus “+”
Input/Power
5
DC Bus “-”
Input/Power
6
Hall Sensor A (HA)
7
Hall Sensor B (HB)
Input
8
Hall Sensor C (HC)
Input
Input
9
Hall Sensors, 5V power supply terminal
Output/Power
10
Hall Sensors, Ground terminal
Output/Power
11
UART-to-USB connector
Input/Output
12
UART-to-RS-232 connector
Input/Output
13
USB connector for the Starter Kit Programmer/Debugger
Input/Output
14
Connector for matrix board (J4)
Input/Output
15
Isolated ICSP™ programmer/debugger connector for
UART-to-USB converter (J1)
Input/Output
16
ICSP programmer/debugger connector for PIC24 MCU or
dsPIC DSC (J18)
Input/Output
17
14-pin keyed connector (J16)
Input/Output/Power
The 14-pin keyed connector provides the signals and power supply rails from and to
the Power Module Stage. These signals are shown in Table 4-6.
TABLE 4-6:
14-PIN KEYED CONNECTORS
Number
DS52074A-page 48
Name
Type
1
3.3V, digital rail
Output
2
AC input voltage feedback (not buffered)
Output
3
3.3V, analog rail
Output
4
AC input voltage feedback (buffered)
Output
5
Ground, analog rail
Output
6
AC input current feedback
Output
7
Fault (Overcurrent or Overvoltage condition)
Output
8
VAC zero crossing signal
Output
Output
9
PFC shunt signal
10
PWM signal for the PFC IGBT
Input
11
Ground, digital rail
Output
12
PWM fault
Output
13
15V
Output
14
PFC shunt signal
Output
2012 Microchip Technology Inc.
Hardware
4.3
ELECTRICAL SPECIFICATIONS
The maximum power and current capability of the system is dictated by the allowable
temperature rise of the different components. Establishing maximum limits is not simple
given the different ways the user may use the system. The voltage and the nature of
the electrical load used both affects the dissipation that occurs. In determining the
allowable limits for the power semiconductors, the following assumptions have been
made:
• Heat sink is at 70°C (worst case)
• Thermal resistance of the insulating thermal pad is 3°C/W
TABLE 4-7:
INVERTER ELECTRICAL SPECIFICATIONS
Parameter
DC Bus
Current
Min
Typ
Max
Units
40
310
400
VDC
0.1
(1)
6.5
(1)
10
A
Power Rating
4
2015(2)
4000(2)
Watts
Switching Frequency
0
—
20
kHz
Note 1:
2:
TABLE 4-8:
The system continuously operated during one hour, 15 kHz switching
frequency and the PFC boost circuit disabled.
It is possible to increase the available maximum output power up to
4000W by using an external ventilation mechanism attached to system
near to the power module. To provide additional air flow, a conventional
AC muffin fan can be used (Comair-rotron part number 028021 or
028023). An alternative bonded fin heat sink with fans attached is also an
option (C&H Technology, Inc. part number CH5117F).
PFC ELECTRICAL SPECIFICATIONS
Parameter
Min
Typ
Max
Units
DC Bus
90
380
400
VDC
Current
0.1
2.6(1)
3.5(1)
A
Power Rating
9
1000(2)
1400(2)
Watts
Switching Frequency
0
50
100
kHz
Note 1:
2:
2012 Microchip Technology Inc.
The system continuously operated during one hour, 50 kHz switching
frequency.
It is possible to increase the available maximum output power up to
1400W by using an external ventilation mechanism attached to system
near to the PFC IGBT. To provide additional air flow, a conventional AC
muffin fan can be used (Comair-rotron part number 028021 or 028023).
An alternative bonded fin heat sink with fans attached is also an option
(C&H Technology, Inc. part number CH5117F).
DS52074A-page 49
dsPICDEM™ MCHV-2 Development Board User’s Guide
NOTES:
DS52074A-page 50
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Appendix A. Board Layout and Schematics
FIGURE A-1:
PFC STAGE BOARD LAYOUT (TOP)
2012 Microchip Technology Inc.
DS52074A-page 51
dsPICDEM™ MCHV-2 Development Board User’s Guide
DS52074A-page 52
2
2
3
1
4
1
3
6
2
4
3
2
1
2
1
4
5
1
3
4
3
4
3
4
2
PFC STAGE SCHEMATIC (SHEET 1 OF 3)
1
FIGURE A-2:
2012 Microchip Technology Inc.
Appendix A
FIGURE A-3:
PFC STAGE SCHEMATIC (SHEET 2 OF 3)
2012 Microchip Technology Inc.
DS52074A-page 53
dsPICDEM™ MCHV-2 Development Board User’s Guide
FIGURE A-4:
DS52074A-page 54
PFC STAGE SCHEMATIC (SHEET 3 OF 3)
2012 Microchip Technology Inc.
Appendix A
FIGURE A-5:
POWER MODULE STAGE BOARD LAYOUT (TOP)
2012 Microchip Technology Inc.
DS52074A-page 55
dsPICDEM™ MCHV-2 Development Board User’s Guide
FIGURE A-6:
DS52074A-page 56
POWER MODULE STAGE BOARD LAYOUT (BOTTOM)
2012 Microchip Technology Inc.
2012 Microchip Technology Inc.
GND_DIG
GND_DIG
1
3
5
7
PFC_FLT
9
PFC_L
11
13
15V_PFC
AVDD_PFC
VDD_PFC
PIM_IA/IPFC
PIM_IB/POT
PIM_IBUS/VBUS
PIM_QEA/IA/V_M1
PIM_QEB/IB/V_M2
PIM_INDX/POT/V_M3
PFC_FLT
FAULT
MCLR
PWM1H3
2
4
6
8
10
12
14
PWM1L2
AVDD/2
PWM1H2
PGD
PWM1L3
PGC
PIM_REC_NEUTR
IPFC_C_SHUNT
FAULT
PFC_PWM
VACZX
VAC
VAC_VOL2
+3.3V_ANA
IPFC
PIM_DC_BUS
PIM_V_M1/POT
PIM_PFC_L
PIM_VAC_VOL2
+3.3V_DIG
PIM_IPFC_C_SHUNT
ISO_VDD_USB
GND_DIG
TX
PIM_V_M2
PIM_GEN1
ISO_D-
PIM_V_M3/IBUS
ISO_D+
VACZX
HB/QEB
TX
+3.3V_DIG
HB/QEB
6 7 8 9
HA/QEA
GND_DIG
PIM_HALLC/INDX/STP_PWM
RX
PWM1L1
PWM1H1
PIM_POT
GND_DIG
GND_DIG
GND_DIG
VBUS
+3.3V_ANA
IB
IA
FAULT_IP/IBUS
VACZX_VAC_POT
IPFC
MONITOR_2
PIM_FLT_OUT2
V_M3
V_M2
V_M1
HC/INDX
PWM2L1
FAULT_IP/IBUS
POT
VBUS
MONITOR_3
MONITOR_1
REC_NEUTR
PFC_L
IPFC_C_SHUNT
VAC_VOL2
IB_SHUNT+
PIM_FLT_OUT1
DBG_LED2
HOME
OSCI
OSCO
IA_SHUNT+
IBUS_SHUNT-
+3.3V_DIG
GND_DIG
PIM_IBUS+
OSCO
5
IBUS_SHUNT+
OSCI
GND_DIG
GND_DIG
GND_DIG
37
36
35
34
33
32
14
15
16
17
18
19
27
26
24
25
M
28
23
29
38
13
22
39
12
30
40
11
21
41
10
31
42
20
43
44
7
9
45
6
8
46
47
4
5
48
49
2
3
50
1
J4
PIM_INDX/POT/V_M3
PIM_QEB/IB/V_M2
PIM_QEA/IA/V_M1
PIM_GEN2
PIM_GEN1
PIM_HALLC/INDX/STP_PWM
PIM_PFC_PWM
PIM_FLT_OUT2
PIM_FLT_OUT1
PIM_POT
PIM_IB/POT
PIM_IA/IPFC
PIM_IBUS/VBUS
PIM_DC_BUS
PIM_V_M3/IBUS
PIM_V_M2
PIM_V_M1/POT
PIM_REC_NEUTR
PIM_PFC_L
PIM_IPFC_C_SHUNT
PIM_VAC_VOL2
PIM_IB+
PIM_IA+
PIM_IBUS-
PIM_IBUS+
3
PIM_IBUS-
BTN
RX
PIM_PFC_PWM
HA/QEA
PIM_IB+
PIM_IA+
HB/QEB
HC/INDX
2
4
HA/QEA
1
FIGURE A-7:
+3.3V_DIG
GND_DIG
DBG_LED1
+3.3V_DIG
PIM_PFC_PWM
HC/INDX
+3.3V_DIG
Appendix A
POWER MODULE STAGE SCHEMATIC (SHEET 1 OF 6)
DS52074A-page 57
PIM_GEN2
1
3
2
VFO
IBUS_SHUNT+
GND_DIG
VB(W)
15V
M3_H
1
GND_DIG
15V
M1_L
M2_L
M3_L
VS(M1)
M1_H
VCC(UH)
VB(U)
VS(M2)
M2_H
VCC(VH)
VB(V)
VS(M3)
Vin
3
GND_DIG
GND_DIG
Vout
GND
2
IA_SHUNT+
IBUS_SHUNT+
15V
IBUS_SHUNT-
GND_DIG
GND_DIG
GND_DIG
IBUS_SHUNT+
IBUS_SHUNT+
IB_SHUNT+
GND_DIG
1
2
3
4
5
M1
M2
M3
EN
GND_DIG
SW
Vin BOOST
15V_PFC
N
GND
2
DS52074A-page 58
FB
D16
D15
BAT17
6
GND_DIG
SS1P3L
GND_DIG
VDD_EXT
V_M3
1
V_M3
GND_DIG
V_M1
V_M2
V_M2
GND_DIG
+3.3V_DIG
REC_NEUTR
V_M1
M1
M2
M3
GND_DIG
VDD_PFC
VBUS
P
VDD_EXT
N
BP1
BP2
M
+3.3V_ANA
15V
AVDD_PFC
VCC(WH)
M3
VS(M3)
VB(W)
VCC(VH)
M2
VS(M2)
VB(V)
VCC(UH)
M1
VS(M1)
VB(U)
FIGURE A-8:
3
VCC(WH)
dsPICDEM™ MCHV-2 Development Board User’s Guide
POWER MODULE STAGE SCHEMATIC (SHEET 2 OF 6)
2012 Microchip Technology Inc.
SML4747
D14
IBUS_SHUNT+
IBUS_SHUNT-
IB_SHUNT+
IBUS_SHUNT+
IA_SHUNT+
12
13
10
9
5
6
PWM2L1
PWM1L1
PWM1H1
PWM1L2
PWM1L3
PWM1H2
PWM1H3
+3.3V_ANA
AVDD/2
AVDD/2
AVDD/2
3
2
11
+
-
+
-
+
-
+
-
14
AVDD/2
8
7
+3.3V_ANA
1
FAULT_IP/IBUS
IB
IA
+3.3V_ANA
4
3
IN-
IN+
1
VFO
+3.3V_ANA
+3.3V_ANA
+3.3V_ANA
2
5
4
TP
1
TP
1
TP
1
TP
1
TP
1
TP
1
TP
2012 Microchip Technology Inc.
1
TP
GND_DIG
FAULT
GND_DIG
1
2
3
4
PWM1L1
5
M3_H
6
PWM1H1
7
M3_L
8
PWM1L2
9
M2_H
10
PWM_EN
PWM2L1
POT
HC/INDX
V_M3
FAULT_IP/IBUS
V_M2
HB/QEB
IB
HA/QEA
V_M1
IA
POT
VAC
VACZX
2
4
6
2
4
6
8
1
3
5
1
3
5
7
74ACT244MTC
20
19
18
17
16
15
14
13
12
11
PWM1H2
M2_L
PWM1L3
M1_H
PWM1H3
M1_L
PFC_PWM
PWM_EN
MONITOR_3
MONITOR_2
MONITOR_1
VACZX_VAC_POT
VCC
2G
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
2
4
6
1
3
5
1G
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
2
4
6
1
3
5
GND_DIG
FIGURE A-9:
1
IBUS_SHUNT+
Appendix A
POWER MODULE STAGE SCHEMATIC (SHEET 3 OF 6)
DS52074A-page 59
UART_RX_ISO
UART_TX_ISO
VDD_USB
12
9
11
10
7
6
5
4
3
2
1
29
MCLR_18F
RA5/AN4
RA4/RCV
RA3/AN3
RA2/AN2
1
3
4
5
2
6
15
U2
PIC18F2450
OSC2/CLKO
OSC1/CLKI
VSS
28
TAB
27
RA1/AN1
RC1/nUOE
C1+
C1C2+
C2V+
VGND
R1OUT
R2OUT
T1IN
T2IN
D+
D-
9
RC2
10
18F_PGD
18F_PGC
AN9/RB3
VSS
VDD
INT0/RB0
INT1/RB1
INT2/RB2
VCC
6 7 8 9
R1IN
R2IN
16
13
8
14
7
RX/DT/RC7
T1OUT
T2OUT
VUSB
11
23
12
D-
RCO/T1CKI
8
RA0/AN0
26
MCLR
25
PGD/RB7
13
D+
D-/VM/RC4
22
AN11/RB4
24
PGC/RB6
D+//VP/RC5
PGM/RB5
TX/CK/RC6
14
USB_RX_ISO
15
16
17
18
19
20
21
1
2
3
4
5
1
USB_TX_ISO
6
7
8
9
2
1
2
3
4
18F_PGD
5
18F_PGC
6
1
2
4
3
ISO_D+
IN-
IN+
1
ISO_VDD_USB
2
TARGET_MCLR
3
4
5
ISO_D6
TARGET_MCLR
3
2
5
1
2
3
1
2
3
1
1
2
2
TARGET_MCLR
1
USB_RX_ISO
UART_RX_ISO
USB_TX_ISO
UART_TX_ISO
GND_DIG
GND_DIG
GND_DIG
+3.3V_DIG
+3.3V_DIG
GND_DIG
+3.3V_DIG
IN-
IN+
6
M
GND_DIG
MCLR
+3.3V_DIG
POT
GND_DIG
+3.3V_DIG
GND_DIG
1
1
GND_DIG
+3.3V_DIG
+3.3V_DIG
GND_DIG
4
3
PWM_EN
BTN
GND_DIG
+3.3V_DIG
GND_DIG
+3.3V_DIG
GND_DIG
RX
TX
+3.3V_DIG
2
5
DS52074A-page 60
5
1
2
3
4
PGD
5
PGC
6
FIGURE A-10:
2
MCLR_18F
dsPICDEM™ MCHV-2 Development Board User’s Guide
POWER MODULE STAGE SCHEMATIC (SHEET 4 OF 6)
2012 Microchip Technology Inc.
Appendix A
FIGURE A-11:
POWER MODULE STAGE SCHEMATIC (SHEET 5 OF 6)
2012 Microchip Technology Inc.
DS52074A-page 61
dsPICDEM™ MCHV-2 Development Board User’s Guide
FIGURE A-12:
DS52074A-page 62
POWER MODULE STAGE SCHEMATIC (SHEET 6 OF 6)
2012 Microchip Technology Inc.
Appendix A
FIGURE A-13:
INTERNAL OP AMP CONFIGURATION MATRIX BOARD SCHEMATIC
IBUS_SHUNT+
IBUS_SHUNTIA_SHUNT+
IB_SHUNT+
VAC_VOL2
IPFC_C_SHUNT
PFC_L
REC_NEUTR
MONITOR_1
MONITOR_2
MONITOR_3
VBUS
VBUS/IBUS
IPFC/IA
VACZX_VAC_POT/IB
POT
FAULT_IP/IBUS
PWM2L1
HC/INDX
V_M1
V_M2
V_M3
2012 Microchip Technology Inc.
1
50
2
49
3
48
4
47
5
46
6
45
7
44
8
43
9
42
10
41
11
40
12
39
13
38
14
37
15
36
16
35
17
34
18
33
19
32
20
31
21
30
22
29
23
28
24
27
25
26
PIM_IBUS+
PIM_IBUSPIM_IA+
PIM_IB+
PIM_VAC_VOL2
PIM_IPFC_C_SHUNT
PIM_PFC_L
PIM_REC_NEUTR
PIM_V_M1/POT
PIM_V_M2
PIM_V_M3/IBUS
PIM_DC_BUS
PIM_IBUS/VBUS
PIM_IA/IPFC
PIM_IB/POT
PIM_POT
PIM_FLT_OUT1
PIM_FLT_OUT2
PIM_PFC_PWM
PIM_HALLC/INDX/STP_PWM
PIM_GEN1
PIM_GEN2
PIM_QEA/IA/V_M1
PIM_QEB/IB/V_M2
PIM_INDX/POT/V_M3
DS52074A-page 63
dsPICDEM™ MCHV-2 Development Board User’s Guide
FIGURE A-14:
EXTERNAL OP AMP CONFIGURATION MATRIX BOARD SCHEMATIC
IBUS_SHUNT+
IBUS_SHUNTIA_SHUNT+
IB_SHUNT+
VAC_VOL2
IPFC_C_SHUNT
PFC_L
REC_NEUTR
MONITOR_1
MONITOR_2
MONITOR_3
VBUS
VBUS/IBUS
IPFC/IA
VACZX_VAC_POT/IB
POT
FAULT_IP/IBUS
PWM2L1
HC/INDX
V_M1
V_M2
V_M3
DS52074A-page 64
1
50
2
49
3
48
4
47
5
46
6
45
7
44
8
43
9
42
10
41
11
40
12
39
13
38
14
37
15
36
16
35
17
34
18
33
19
32
20
31
21
30
22
29
23
28
24
27
25
26
PIM_IBUS+
PIM_IBUSPIM_IA+
PIM_IB+
PIM_VAC_VOL2
PIM_IPFC_C_SHUNT
PIM_PFC_L
PIM_REC_NEUTR
PIM_V_M1/POT
PIM_V_M2
PIM_V_M3/IBUS
PIM_DC_BUS
PIM_IBUS/VBUS
PIM_IA/IPFC
PIM_IB/POT
PIM_POT
PIM_FLT_OUT1
PIM_FLT_OUT2
PIM_PFC_PWM
PIM_HALLC/INDX/STP_PWM
PIM_GEN1
PIM_GEN2
PIM_QEA/IA/V_M1
PIM_QEB/IB/V_M2
PIM_INDX/POT/V_M3
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Appendix B. Debugging and Troubleshooting with MPLAB® 8
This appendix provides debug and programming guidance for MPLAB 8 users. For
more information on how to use MPLAB 8 IDE, refer to the following documentation:
• “MPLAB IDE User’s Guide” (DS51519)
• “MPLAB IDE Quick Start Guide” (DS51281)
• MPLAB IDE Online Help
B.1
SETTING UP AN APPLICATION FOR DEBUGGING
To prepare the application for debug:
1. Launch MPLAB IDE, and then open the application project. The related workspace will be open. For information on projects and workspaces, see the MPLAB
IDE documentation mentioned at the beginning of this chapter.
2. Select Project>Build All to build the application code. The build’s progress will be
visible in the Build tab of the Output window.
3. Select Debugger>Select Tool>Starter Kit on Board. MPLAB IDE will change to
add Starter Kit on Board debug features (Figure B-1): 1) the status bar will show
Starter Kit on Board as the debug tool, 2) a Starter Kit on Board debug toolbar
will be added, 3) the Debugger menu will change to add Starter Kit on board
debug functions, and 4) the Output window will display communication status
between MPLAB IDE and the Starter Kit on Board on the Starter Kit on Board tab.
FIGURE B-1:
2012 Microchip Technology Inc.
STARTER KIT ON BOARD AS DEBUG TOOL
DS52074A-page 65
dsPICDEM™ MCHV-2 Development Board User’s Guide
4. Select Debugger>Program to program the application code into the target PIC24
MCU or dsPIC DSC device on the dsPICDEM MCHV-2 Development board. The
debug programming progress will be visible in the Starter Kit on Board tab of the
Output window.
Note:
B.2
Debug executive code is automatically programmed in the upper program
memory of the Starter Kit on Board device when the Starter Kit on Board is
selected as a debugger. Debug code must be programmed into the target
device to use the in-circuit debugging capabilities of the Starter Kit on
Board.
RUNNING THE APPLICATION
The Starter Kit on Board executes in either real-time (Run) or steps (Step Into, Step
Over, and Animate) real-time execution occurs when you select Run in MPLAB IDE.
Once the target device code is halted, either by Halt or a breakpoint, you can step.
Toolbar buttons can be used for quick access to commonly used debug operations.
Refer to Section 3.3 “Running the Example Application” in the “MPLAB Starter Kit for
dsPIC® Digital Signal Controllers User’s Guide” (DS51700).
Note:
All the peripherals are frozen when the “Halt” button is pressed to stop the
program execution.
To see how these options function, do the following:
1. Select Debugger>Reset>Processor Reset or click the Reset button to reset the
program.
2. Select Debugger>Run or click the Run button. Observe how the application operates.
3. Select Debugger>Halt or click the Halt button to stop the program execution. A
green solid arrow will mark the line of code in the File window where the program
halted.
4. Select Debugger>Step Into or click the Step Into button to step the program execution once. The green solid arrow will move down one line of code in the File
window. Repeatedly click the button to step through the code.
5. Select Debugger>Reset>Processor Reset or click the Reset button to reset the
program again. The arrow will disappear, meaning the device is reset.
DS52074A-page 66
2012 Microchip Technology Inc.
Appendix B
B.3
DEBUGGING THE APPLICATION
MPLAB IDE provides an editor and several debug features such as breakpoints and
Watch windows to aid in application code debugging.
B.3.1
Editing Application Code
To view application code so it may be edited, do one of the following:
1. Select Edit>New to create new code or Edit>Open to search for and open an
existing code file, or double click a file in the Project window to open an existing
code file. See an example Project window in Figure B-2.
FIGURE B-2:
PROJECT EXAMPLE
Existing Code
For more information on using the MPLAB Editor to create and edit code, see the
MPLAB Editor Help.
B.3.2
Using breakpoints and Mouseovers
To set a breakpoint in code:
1. Double click the gutter: Double click in the window gutter next to the line of code
where you want the breakpoint. Double click again to remove the breakpoint.
2. Note: Double click must be set up for breakpoints. Select the Edit>Properties, and
click the ASM/C/BAS File Type tab, and then select the “Double-click Toggles
Breakpoint” check box.
3. Pop-up Menu: Place the cursor over the line of code where you want the breakpoint. Then, right-click to pop up a menu and select Set Breakpoint. Once a
breakpoint is set, “Set Breakpoint” will become “Remove Breakpoint” and “Disable breakpoint”. Other options on the popup menu under Breakpoints are for
deleting, enabling, or disabling all breakpoints.
4. Breakpoint Dialog: Open the Breakpoint dialog (Debugger>Breakpoints) to set,
delete, enable, or disable breakpoints. See the MPLAB IDE Help for more information
on this dialog.
5. A breakpoint set in code will appear as a red hexagon with a “B” as shown in
Figure B-3.
2012 Microchip Technology Inc.
DS52074A-page 67
dsPICDEM™ MCHV-2 Development Board User’s Guide
FIGURE B-3:
BREAKPOINT EXAMPLE
Once code is halted, hovering over a variable opens a tool tip window that contains the
current value of the variable.
Note:
DS52074A-page 68
This feature must be configured. Select Edit>Properties and click the
Tooltips tab, and select the “Enable Variable Mouseover Values” check box.
2012 Microchip Technology Inc.
Appendix B
B.3.3
Using Watch Windows
To use a Watch window:
1. The Watch window is made visible on the desktop by selecting View>Watch. It
contains four selectable Watch views (via tabs) in which to view variables (SFRs,
symbols and absolute addresses).
2. Select an SFR or Symbol from the list and click the related Add button to add it
to the Watch window. Or click in the “Address” column and enter an absolute
address.
A Watch window populated with SFRs and Symbols will look like Figure B-4. For more
on using Watch windows, see MPLAB IDE Help.
FIGURE B-4:
B.4
WATCH WINDOW EXAMPLE
PROGRAMMING AN APPLICATION
When the program is successfully debugged and running, the next step is to program
the device for stand-alone operation in the finished design. When doing this, the
resources reserved for debug are released for use by the application. To program the
application, use the following steps:
1. Disable Starter Kit on Board as a debug tool by selecting Debugger>Select
Tool>None.
2. Select Starter Kit on Board as the programmer in the Programmer>Select
Programmer menu.
3. Select Programmer>Program.
At this point, the application code will run independently.
2012 Microchip Technology Inc.
DS52074A-page 69
dsPICDEM™ MCHV-2 Development Board User’s Guide
B.5
DETERMINING DEVICE SUPPORT AND RESERVED RESOURCES
Due to the built-in in-circuit debugging capability of ICD devices and the ICSP function
offered by the debugger, the Starter Kit on Board uses some on-chip resources when
debugging. It also uses program memory and file register locations in the target device
during debugging. These locations are not available for use by user code. In the
MPLAB IDE, registers marked with an “R” in the register display represents reserved
registers.
For information on device resources that are needed for in-circuit debugging, please
refer to the MPLAB ICD 2 Help, found in MPLAB IDE under Help>Topics. The device
reserved resource information found under “Resources Used By MPLAB ICD 2” is the
same for the Starter Kit on Board.
B.6
TROUBLESHOOTING
B.6.1
Debugging Connection Problems
While using the Starter Kit on Board as a debugger, you may receive the error “Starter
Kit on Board not connected to this computer” when programming the device. This can
result from communication being lost between the Starter Kit on Board and MPLAB
IDE. To resolve this:
1. Unplug the USB cable from the Starter Kit on Board.
2. Plug the USB cable back into the Starter Kit on Board.
MPLAB IDE should automatically reconnect to the Starter Kit on Board. If this does not
work, do the following:
1. Check the USB connection between the PC and Starter Kit on Board at both
ends.
2. If using a USB hub, make sure it is powered.
3. Make sure the USB port is not in use by another device.
B.6.2
PROGRAMMING PROBLEMS
If during the course of developing your own application you can no longer program the
device on the Starter Kit on Board, you may have set device configuration bits to code
protect or some other state that prevents programming. To view the settings of the
configuration bits, select Configure>Configuration bits.
B.7
SETTINGS DIALOG AND INFO TAB
When you select Debugger>Settings or Programmer Settings, you will open the Starter
Kit on Board Settings dialog. Currently, there is only one tab (Info) on this dialog, which
provides the following information:
• Firmware Version: The version of firmware on the Starter Kit on Board.
• Debug Exec Version: The version of the debug executive that is loaded into the
target device program memory to enable debug operation.
DS52074A-page 70
2012 Microchip Technology Inc.
dsPICDEM™ MCHV-2 DEVELOPMENT
BOARD USER’S GUIDE
Index
A
Inverter Leg Shunt Resistor Feedback..................... 44
Application Debug Setup ......................................... 27
Application Debugging ............................................. 30
Application Programming ......................................... 30
M
C
Communication Port Connectors ............................. 25
Connection Sequence.............................................. 25
Customer Notification Service.................................. 12
Customer Support .................................................... 13
D
DC BUS Current Feedback...................................... 44
DC BUS Overcurrent................................................ 45
DC BUS Voltage Feedback ..................................... 44
Demonstration Software .......................................... 33
Documentation
Conventions ...................................................... 10
Layout ................................................................. 9
dsPICDEM™ MCHV-2 Development Board
Block Diagram .................................................. 17
Features............................................................ 18
Overview ........................................................... 15
Microchip Internet Web Site ..................................... 12
P
PFC Stage.......................................................... 21, 35
Phase Voltage Feedback ......................................... 43
Power Connections ............................................ 23, 25
Power Module .......................................................... 43
Power Module Stage.......................................... 21, 40
Power Supplies ........................................................ 42
Power-down Sequence ............................................ 27
Power-up Sequence................................................. 27
Programming and Debugging .................................. 27
Programming Problems ........................................... 31
R
Reading, Recommended ......................................... 11
Running the Starter Kit on Board Application........... 29
S
Safety Notice.............................................................. 5
System Connections ................................................ 24
H
T
Hall Sensors............................................................. 43
Hardware Components ............................................ 35
Troubleshooting ....................................................... 31
I
Interface Components.............................................. 22
Internet Address....................................................... 12
2012 Microchip Technology Inc.
W
Warranty Registration .............................................. 11
WWW Address......................................................... 12
DS52074A-page 71
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
www.microchip.com
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Japan - Osaka
Tel: 81-66-152-7160
Fax: 81-66-152-9310
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Cleveland
Independence, OH
Tel: 216-447-0464
Fax: 216-447-0643
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
China - Beijing
Tel: 86-10-8569-7000
Fax: 86-10-8528-2104
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
China - Hangzhou
Tel: 86-571-2819-3187
Fax: 86-571-2819-3189
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-330-9305
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
DS52074A-page 72
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
11/29/11
2012 Microchip Technology Inc.