UM0723
User manual
1 kW three-phase motor control demonstration board
featuring L6390 drivers and STGP10NC60KD IGBT
1
Introduction
This document describes the 1 kW three-phase motor control demonstration board featuring
the L6390 high and low-side drivers and the STGP10NC60KD IGBT. The demonstration
board is an AC/DC inverter that generates a three-phase waveform for driving three or twophase motors such as induction motors or PMSM motors up to 1000 W with or without
sensors.
The main device presented in this user manual is a universal, fully evaluated, and populated
design consisting of a three-phase inverter bridge based on the 600 V STMicroelectronics™
IGBT STGP10NC60KD in a TO-220 package mounted on a heatsink, and the L6390 highvoltage high-side and low-side driver featuring an integrated comparator for hardware
protection features such as overcurrent and overtemperature. The driver also integrates an
operational amplifier suitable for advanced current sensing. Thanks to this advanced
characteristic, the system has been specifically designed to achieve an accurate and fast
conditioning of the current feedback, therefore matching the typical requirements in field
oriented control (FOC).
The board has been designed to be compatible with single-phase mains, supplying from
90 VAC to 285 VAC or from 125 VDC to 400 VDC for DC voltage. With reconfiguration of the
input sourcing, the board is suitable also for low-voltage DC applications up to 35 VDC. This
document is associated with the release of the STEVAL-IHM023V2 demonstration board
(see Figure 1 below).
Figure 1.
June 2011
STEVAL-IHM023V2
Doc ID 15870 Rev 4
1/48
Contents
UM0723
Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2
System introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
4
5
2/48
2.1
Main characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2
Target applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3
Safety and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.1
General terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.2
Demonstration board intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.3
Demonstration board installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.4
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.5
Demonstration board operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1
System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2
The board schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3
Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.1
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.2
Inrush limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.3
Brake function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.4
Gate driving circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.5
Overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.6
Current sensing amplifying network . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3.7
The tachometer and Hall/encoder inputs . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.8
Temperature feedback and overtemperature protection . . . . . . . . . . . . 23
Hardware setting of the STEVAL-IHM023V2 . . . . . . . . . . . . . . . . . . . . . 24
4.1
Hardware settings for six-step (block commutation) control of BLDC
motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2
Hardware settings for “Field Oriented Control” (FOC) in single-shunt
topology current reading configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3
Hardware settings for FOC in three-shunt configuration . . . . . . . . . . . . . 27
Description of jumpers, test pins, and connectors . . . . . . . . . . . . . . . 30
Doc ID 15870 Rev 4
UM0723
Contents
6
Connector placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7
Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8
PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
10
Using STEVAL-IHM023V2 with STM32 PMSM FOC firmware
library v3.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
10.1
Environmental considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
10.2
Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
10.3
Software requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
10.4
STM32 FOC firmware library v3.0 customization . . . . . . . . . . . . . . . . . . . 45
11
Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
12
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
13
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Doc ID 15870 Rev 4
3/48
List of tables
UM0723
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
4/48
Current reading configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Jumper settings for high-voltage BLDC motor in six-step control . . . . . . . . . . . . . . . . . . . . 24
Jumper settings for low-voltage BLDC motor in six-step control . . . . . . . . . . . . . . . . . . . . 25
Jumper settings for high-voltage PMAC or generic AC motor in single-shunt
FOC control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Jumper settings for low-voltage BLDC motor in single-shunt FOC control. . . . . . . . . . . . . 27
Jumper settings for FOC of HV PMSM, BLDC, or AC IM in three-shunt configuration
for current reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Jumper settings for FOC of LV PMSM or BLDC in three-shunt configuration for
current reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Jumpers description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Connector pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Testing pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
STEVAL-IHM023V2 motor control workbench parameters . . . . . . . . . . . . . . . . . . . . . . . . 45
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Doc ID 15870 Rev 4
UM0723
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
STEVAL-IHM023V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Motor control system architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEVAL- IHM023V2 schematic - part 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEVAL- IHM023V2 schematic - part 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEVAL- IHM023V2 schematic - part 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEVAL- IHM023V2 schematic - part 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEVAL- IHM023V2 schematic - part 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEVAL- IHM023V2 schematic - part 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power supply block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gate driving network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three-shunt configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Six-step current sensing configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NTC placement on the heatsink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEVAL-IHM023V2 connectors placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Silk screen - top side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Silk screen - bottom side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Copper tracks - top side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Copper tracks - bottom side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Doc ID 15870 Rev 4
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.....9
. . . . 10
. . . . 11
. . . . 12
. . . . 13
. . . . 14
. . . . 15
. . . . 17
. . . . 18
. . . . 19
. . . . 21
. . . . 22
. . . . 23
. . . . 33
. . . . 41
. . . . 42
. . . . 43
. . . . 43
5/48
System introduction
UM0723
2
System introduction
2.1
Main characteristics
The information below lists the converter specification data and the main parameters set for
the STEVAL-IHM023V2 demonstration board.
2.2
6/48
●
Minimum input voltage 125 VDC or 90 VAC
●
Maximum input voltage 400 VDC or 285 VAC
●
With applied input voltage doubler - the range is from 65 VAC to 145 VAC
●
Voltage range for low-voltage motor control applications from 18 VDC to 35 VDC
●
Possibility to use auxiliary +15 V supply voltage
●
Maximum output power for motors up to 1000 W
●
Regenerative brake control feature
●
Input inrush limitation with bypassing relay
●
+ 15 V auxiliary power supply based on buck converter with VIPer™16
●
IGBT power switch STGP10NC60KD in TO-220 package - compatible with other ST
IGBTs or power MOSFETs in TO-220 package
●
Fully populated board conception with testing points and isolated plastic safety cover
●
Motor control connector for interface with STM3210B-EVAL board and other ST motor
control dedicated kits
●
Tachometer input
●
Hall/encoder inputs
●
Possibility to connect BEMF daughterboard for sensorless six-step control of BLDC
motors
●
PCB type and size:
–
Material of PCB - FR-4
–
Double-sided layout
–
Copper thickness: 60 µm
–
Total dimensions of demonstration board: 127 mm x 180 mm.
Target applications
●
Washing machines
●
Home appliances
●
Medical applications - rehabilitative beds
●
High-power, high-efficiency water pumps for heating applications.
Doc ID 15870 Rev 4
UM0723
System introduction
2.3
Safety and operating instructions
2.3.1
General terms
Warning:
During assembly, testing, and operation, the demonstration
board poses several inherent hazards, including bare wires,
moving or rotating parts, and hot surfaces. There is a danger
of serious personal injury and damage to property, if the kit
or components are improperly used or installed incorrectly.
The kit is not electrically isolated from the AC/DC input. The
demonstration board is directly linked to the mains voltage.
No insulation has been placed between the accessible parts
and the high-voltage. All measurement equipment must be
isolated from the mains before powering the board. When
using an oscilloscope with the demonstration board, it must
be isolated from the AC line. This prevents a shock from
occurring as a result of touching any single point in the
circuit, but does NOT prevent shocks when touching two or
more points in the circuit. Do not touch the demonstration
board after disconnection from the voltage supply, as several
parts and power terminals, which contain energized
capacitors, need to be allowed to discharge.
All operations involving transportation, installation and use, as well as maintenance, are to
be carried out by skilled technical personnel (national accident prevention rules must be
observed). For the purpose of these basic safety instructions, “skilled technical personnel”
are suitably qualified people who are familiar with the installation, use and maintenance of
powered electronic systems.
2.3.2
Demonstration board intended use
The STEVAL-IHM023V2 demonstration board is a component designed for demonstration
purposes only and is not to be used for electrical installation or machinery. The technical
data as well as information concerning the power supply conditions should be taken from
the documentation and strictly observed.
2.3.3
Demonstration board installation
The installation and cooling of the demonstration kit boards must be in accordance with the
specifications and the targeted application.
●
The motor drive converters are protected against excessive strain. In particular, no
components are to be bent or isolating distances altered during the course of
transportation or handling.
●
No contact must be made with other electronic components and contacts.
●
The boards contain electro-statically sensitive components that are prone to damage
through improper use. Electrical components must not be mechanically damaged or
destroyed.
Doc ID 15870 Rev 4
7/48
System introduction
2.3.4
UM0723
Electrical connections
Applicable national accident prevention rules must be followed when working on the main
power supply with a motor drive. The electrical installation must be completed in accordance
with the appropriate requirements.
2.3.5
Demonstration board operation
A system architecture which supplies power to the demonstration board should be equipped
with additional control and protective devices in accordance with the applicable safety
requirements (e.g. compliance with technical equipment and accident prevention rules).
8/48
Doc ID 15870 Rev 4
UM0723
Board description
3
Board description
3.1
System architecture
A generic motor control system can be basically schematized as the arrangement of four
main blocks (see Figure 2 below).
●
A control block - its main task is to accept user commands and motor drive
configuration parameters and to provide all digital signals to implement the proper
motor driving strategy. The ST demonstration board based on the STM32™
microcontroller STM3210B-EVAL can be used as a control block thanks to the motor
control connector used on the board.
●
A power block - makes a power conversion from the DC bus transferring to the motor
by means of a three-phase inverter topology. The power block is based on high-voltage
(high and low-side) drivers (L6390) and power switches (STGP10NC60KD) in TO-220
packages.
●
The motor itself - the STEVAL-IHM023V2 demonstration board is able to properly
drive any PMSM, but the FOC itself is conceived for sinusoidal-shaped BEMF. The
demonstration board is also suitable for driving any three or two-phase asynchronous
motor or low-voltage BLDC motors.
●
Power supply block - able to work from 90 VAC to 285 VAC or from 125 VDC to
400 VDC. With reconfiguration of the power stage with jumpers, the board can also be
used for low-voltage applications from 18 VDC to 35 VDC. By supplying the electronic
parts on the board through an external + 15 V connector, the board can be used for
a wide voltage range up to 400 VDC. Please refer to Section 4 for detailed settings of
the jumpers according to the required application.
Figure 2.
Motor control system architecture
#ONTROLBLOCK
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Referring to the above motor control system architecture, the STEVAL-IHM023V2 includes
the power supply and the power block hardware blocks.
Doc ID 15870 Rev 4
9/48
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Board description
UM0723
The board schematic
STEVAL- IHM023V2 schematic - part 1
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UM0723
Board description
STEVAL- IHM023V2 schematic - part 2
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Board description
UM0723
STEVAL- IHM023V2 schematic - part 3
2
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Board description
STEVAL- IHM023V2 schematic - part 4
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UM0723
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UM0723
Board description
STEVAL- IHM023V2 schematic - part 6
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15/48
Board description
3.3
Circuit description
3.3.1
Power supply
UM0723
The power supply in the STEVAL-IHM023V2 demonstration board is implemented as
a multifunctional block which allows to supply the inverter in all ranges of input voltage up to
285 VAC or 400 VDC. If the input AC voltage does not surpass 145 VAC, it is possible to
apply the input voltage doubler, this is done by shorting the W14 jumper. This configuration
almost doubles the input AC voltage to a standard level and allows to evaluate the motor
control application with a low level of input AC voltage.
For high-voltage applications it is necessary to set W3 jumpers to position “HIGH
VOLTAGE”, the auxiliary power supply for supplying all active components on the
demonstration board is implemented as a buck converter based on the U6 VIPer16L which
works with fixed frequency 60 kHz. The output voltage of the converter is +15 VDC voltage
which is fed into the L6390 drivers as supply voltage as well as into the linear regulator
L78L33ACD and L78M05ACDT. The linear regulator provides +3.3 VDC and +5 VDC for
supplying the operational amplifiers and other related parts placed on the demonstration
board. The selection of supply voltage for hardware peripherals placed on the board is done
with jumper W1. In the “3.3 V” position the supply voltage selected is +3.3 V and in the “5 V”
position it is +5 V. Thanks to jumper W6, it is possible to supply the connected MCU driving
board with related supply voltage. In this case, the maximal consumptive current of the MCU
unit has not overreached 50 mA. Please refer to the ST released VIPer16LD datasheet for
further information on this concept.
For low-voltage applications, the step-down converter must be disabled by setting the W3
jumper to position “<35 V ONLY”. In this case, the other linear regulator, L7815, is
connected directly on the bus line, to provide auxiliary voltage + 15 VDC.
Note:
Please note that the voltage range in this kind of application must be in the range + 18 VDC
to + 35 VDC.
For low-voltage DC motor applications which require a voltage lower than + 18 VDC, a dual
supply mode can be used. Voltage on the input connector is normally linked through power
switches to the motor and an external auxiliary voltage is fed through the J3 connector from
an external power source. The voltage of the external power supply used must be in the
range + 14.8 V to + 15.5 V with maximal consumption current 0.5 A.
The information regarding the value of the supply bus voltage on the main filtering
capacitors is sensed with the voltage divider built around R2, R4, and R7 and is fed into the
dedicated control unit through the J5 connector. The proper voltage partitioning for applied
resistors values is 0.0075.
The presence of +15 VDC on the board is indicated with green LED D7. For a better
understanding of the concept, Figure 9 describes the power supply in a block diagram.
16/48
Doc ID 15870 Rev 4
UM0723
Board description
Figure 9.
Power supply block diagram
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3.3.2
Inrush limitation
The input stage of the demonstration board is provided with the 10 Ω NTC resistor to
eliminate input inrush current peak during charging of the bulk capacitors. To achieve
a higher efficiency of the inverter, it is possible to bypass the NTC after the startup phase.
The NTC bypass signal is provided from the MCU board through the J5 connector. The
yellow D27 LED diode is turned off when the inrush NTC is bypassed.
The STEVAL-IHM023V2 demonstration board contains only a basic EMI filter based on X2
and Y2 capacitors. The main function of this demonstration board is as a universal testing
platform. For this reason, the EMI filter is not able to absorb EMI distortion coming from the
inverter for all ranges of the applications used and the design of the filter is up to the user.
The EMI filter must be designed according to the motor and final target applications used.
The heatsink itself is connected to the earth pin in the input J1 connector. If the
demonstration board is used only with DC voltage, it is recommended to connect the
heatsink to a negative voltage potential - common ground.
3.3.3
Brake function
The hardware brake feature has been implemented on the STEVAL-IHM023V2
demonstration board. This feature connects the external resistive load applied to the J6
connector to the bus to eliminate overvoltage generated when the motor acts as
a generator. Such a connected load must be able to dissipate all motor generated energy.
The brake feature functions automatically in the case of bus overvoltage. Voltage on the bus
is sensed through the voltage divider with resistors R23, R24, and R31 and compared to the
voltage reference built around the Zener diode D26. The brake dummy load is switched on
when voltage on the bus reaches 440 VDC and is switched off when the voltage falls below
420 VDC. This voltage level has been chosen to be fully compliant with the possible use of
front-end PFC stage. Another possibility, to activate the brake dummy load, is to use the
external signal coming through the J5 motor connector (PWM_Brake signal) from the
connected MCU board. This function is active with the jumper W5 in position “R_BRAKE”.
The brake threshold levels can be modified by calculating R23, R24, and R34 new values.
The D28 red LED diode indicates acting brake switch.
Doc ID 15870 Rev 4
17/48
Board description
3.3.4
UM0723
Gate driving circuit
The gates of the switches of the IGBT used are controlled by the L6390D drivers. Please
refer to the L6390 datasheet for a detailed analysis of the driver parameters.
Figure 10 shows the correct driving of the IGBT. As can be seen, the charging current for the
IGBT is different compared to the discharging current due to the diode used. The
configuration used provides the best trade-off between efficiency and EMI distortion.
Thanks to the high-performance L6390 driver, the deadtime insertion between the HVG and
LVG outputs is hardware-guaranteed. In this case, considering the value of the deadtime
resistors used to be 47 kΩ, the DT of about 600 ns is applied on the outputs in case:
●
The deadtime is not present on HIN and LIN inputs signals.
●
The deadtime present on HIN and LIN inputs is less than hardware-set DT.
On the contrary, the hardware-set deadtime is not the sum of the deadtime present on the
outputs between LVG and HVG if the deadtime present on the HIN and LIN inputs signals is
higher than the hardware-set deadtime.
Figure 10. Gate driving network
R41 10 Ω
R45 120 Ω
2
D14
Q7
STGP10NC60KD
1
1N4148
3
3.3.5
AM00472a
Overcurrent protection
Hardware overcurrent protection (OCP) is implemented on the board. This feature takes full
advantage of the L6390 driver where an internal comparator is implemented. Thanks to the
internal connection between the comparator output and shutdown block, the intervention
time of the overcurrent protection is extremely low, ranging slightly above 200 ns. Please
see Figure 11 below for details of the OCP.
Considering that the overcurrent protection acts as soon as the voltage on the CP+ pin of
the L6390 rises above (approximately equal to) 0.53 V, and considering the default value of
the shunt resistor, it follows that the default value for the maximum allowed current is equal
to:
Equation 1
ISHU NT
MAX
V REF
R1
= ---------------------- × ⎛⎝ 1 + --------⎞⎠
R SHUNT
R2
with the default values this gives:
ISHUNT_MAX = 7 A
18/48
Doc ID 15870 Rev 4
UM0723
Board description
Figure 11. Overcurrent protection
+3.3 V
R3 (R49, R73, R96)
+5 V
R1 (R47, R67, R95)
Smart SD
COMPARATOR
+
–
VCC
OPAMP
OPOUT
7
10 CP+
VREF
R2 (50, R70, R93)
Shunt
resistor
9 OP+
+
–
6 OP–
GND
L6390
AM00473
The overcurrent protection can be disabled with software if the W5 jumper is set to the “OCP
OFF” position. This may be necessary and is often useful when the user decides to make
the brake operate by turning on the three low-side switches. In fact, if the motor acts as
a generator, it's necessary to protect the hardware, preventing the bus voltage from
exceeding a safety threshold. In addition to dissipating the motor energy on a brake resistor,
it's possible to short the motor phases, preventing the motor current from flowing through
the bulk capacitors.
Please note that with disabling of the OCP, the demonstration board is not protected against
any overcurrent event.
3.3.6
Current sensing amplifying network
The STEVAL-IHM023V2 motor control demonstration board can be configured to run in
various current reading configuration modes:
●
Three-shunt configuration - suitable for the use of field oriented control (FOC)
●
Single-shunt configuration - suitable for the use of FOC in a single-shunt configuration
●
Single-shunt six-step configuration - suitable for scalar control
Configuration with a shunt resistor, where voltage amplified with an operational amplifier is
sensed, was chosen as the current sensing networks. Single-shunt configuration requires
a single op amp, three-shunt configuration requires three op amps. Just for compatibility
purposes, one of them is common to both basic configurations.
The configuration jumpers W10 and W11 allow the user to set the common op amp to
achieve the compatibility between single-shunt six-step configuration (suitable for scalar
control) and three-shunt or single-shunt FOC current reading configuration.
Three-shunt FOC or single-shunt FOC current reading configuration
The details of the three-shunt current sensing reading configuration are shown in Figure 12.
In this configuration, the alternating signal on the shunt resistor, with positive and negative
Doc ID 15870 Rev 4
19/48
Board description
UM0723
values, must be converted to be compatible with the single positive input of the
microcontroller A/D converter used to read the current value. This means that the op amp
must be polarized in order to obtain a voltage on the output that makes it possible to
measure the symmetrical alternating input signal.
The op amp is used in follower mode with the gain of the op amp set by resistor r and R:
Equation 2
R+r
G = -----------r
It is possible to calculate the voltage on the output of the op amp, OP OUT - VOUT, as the
sum of a bias, VBIAS, and a signal, VSIGN, component equal to:
Equation 3
V OU T = V SIGN + V BIAS
3.3
V BI AS = ---------------------------------------------------------- × G
1
1
1
⎛ ------- + -------- + --------⎞ × R3
⎝ R1 R2 R3⎠
I × R SHUNT
V SIGN = ---------------------------------------------------------- × G
1
1
1
⎛ -------- + ------- + --------⎞ × R1
⎝ R1 R2 R3⎠
Total gain of the circuit including the resistors’ divider is equal to:
Equation 4
V SI GN
V SI GN
- = ---------------------------G TOT = --------------V IN
R SHUN T × I
with the default values this gives:
●
VBIAS = 1.7 V
●
G = 4.3
●
GTOT = 1.7
●
Maximum current amplifiable without distortion is 6.5 A.
Please observe that the user can modify the max. current value by changing the values of
the shunt resistors.
20/48
Doc ID 15870 Rev 4
UM0723
Board description
Figure 12. Three-shunt configuration
+5 V
Smart SD
+3.3 V
COMPARATOR
+
–
10 CP+
R3 (R52, R78, R97)
VCC
VREF
(R53, R75, R99)
OPAMP
OPOUT
7
9 OP+
+
–
R2 (R54, R76, R100)
6 OP –
Shunt
resistor
L6390
R (R46, R66, R92)
r (R48, R72, R94)
GND
AM00474
For previously mentioned FOC configurations it is necessary to set the proper gain by
applying the W10 jumper and by applying the W11 jumper to the dash marked position.
Six-step (block commutation) current reading configuration
In case of six-step (also called block commutation) current control, only two of the motor
phases conduct current at the same time. Therefore, it is possible to use only one shunt
resistor placed on the DC link to measure the motor phase current. Moreover, as the current
is always flowing on the shunt resistor in the same direction, only positive current must be
measured, and in this case, the amplifying network needs to be properly designed. The
details of single-shunt current sensing reading configuration are shown in Figure 13. In this
configuration, the current sampling is done only when the value on the shunt resistor is
positive. The only positive value read on the shunt resistor allows the setting of a higher gain
for the op amp than the one set in the three-shunt reading mode.
The op amp is used in follower mode with the gain of the op amp set by resistor r and R:
Equation 5
+ r----------G = R
r
It is possible to calculate the voltage on the output of the op amp, OP OUT VOUT, as the sum
of a bias, VBIAS, and a signal, VSIGN, component equal to:
Equation 6
V OU T = V SIGN + V BIAS
Doc ID 15870 Rev 4
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Board description
UM0723
V BI AS
R1
3.3 × ---------------------R1 + R2
= ------------------------------------------------------------------------ × G
1 -⎞ × R4
1 - + ------1 - + --------------------⎛ ------⎝ R3 R1 + R2 R4⎠
I × R SHU NT × R1
I × R SH UNT × R2
V SIGN = --------------------------------------------- + ---------------------------------------------------------------------------------------------- × G
R1 + R2
2
1
1
1
⎛ ------- + ---------------------- + --------⎞ × ( R1 + R2 )
⎝ R3 R1 + R2 R4⎠
Total gain of the circuit with the resistors’ divider is equal to:
Equation 7
V SIGN
V SIGN
G TOT = ---------------- = -----------------------------V IN
R SH UNT × I
with the default values this gives:
●
VBIAS = 1.7 V
●
G = 4.98
●
GTOT = 2.53
●
Maximum current amplifiable without distortion is 6.5 A.
Please observe that the user can modify the max. current value by changing the values of
the shunt resistors.
Figure 13. Six-step current sensing configuration
+3.3 V
+5 V
Smart SD
COMPARATOR
R4 (R80)
+
–
VCC
10 CP+
R2 (R79)
VREF
R1 (R75)
OPAMP
OPOUT 7
9 OP+
+
–
6 OP–
Shunt
resistor
R3 (R81)
L6390
R (R66 + R69)
r (R72)
GND
AM00475
22/48
Doc ID 15870 Rev 4
UM0723
Board description
For six-step configurations it is necessary to set the proper gain by removing the W10
jumper and applying the W11 jumper to the not marked position.
In Table 1 the mentioned setting of gain jumpers, for all possible current reading
configurations, is shown.
Table 1.
Current reading configuration
Gain configuration
Jumper
Six-step current reading
3.3.7
FOC current reading
W10
Not present
Present
W11
Not marked position
“-” position
The tachometer and Hall/encoder inputs
Both the tachometer and Hall/encoder inputs have been implemented on the board. In the
case of using a Hall or encoder sensor, the W4 jumper must be connected and the W7
jumper disconnected. The W16 jumper set to dash marked “-” position allows to supply any
connected Hall sensor with +5 VDC supply voltage. Setting the W16 jumper to not marked
position supplies the Hall sensor with the same supply voltage as other hardware
peripherals (+3.3 VDC or +5 VDC depend on the W1 jumper). The U11 Hex Schmitt inverter
is used as the voltage level shifter for the connected Hall sensor.
In the case of using a tachometer, the W4 jumper must be disconnected and the W7 jumper
connected.This feature allows to test and evaluate a wide spectrum of various motors.
3.3.8
Temperature feedback and overtemperature protection
Hardware overtemperature protection is implemented on the STEVAL-IHM023V2
demonstration board. This feature fully protects the switches against damage when
temperature on the junction of the switches overruns a defined value. The temperature is
sensed with an NTC resistor placed on the heatsink. The measured signal is fed through the
J5 motor connector to the MCU control unit and can be read with an A/D converter. The
signal is also fed to comparator U8 where it is compared with a 2.5 V reference voltage
which is built around the U9 precision reference Tl431. The output signal of the comparator
U8 is fed to the SD pin of the L6390D drivers to stop the commutation of the connected
motor. With the value of the NTC resistor used equal to 10 kΩ, and resistor R44 equal to
3.6 kΩ, the shutdown temperature is around 70 °C.
Figure 14. NTC placement on the heatsink
Doc ID 15870 Rev 4
23/48
Hardware setting of the STEVAL-IHM023V2
4
UM0723
Hardware setting of the STEVAL-IHM023V2
The STEVAL-IHM023V2 demonstration board can be driven through the J5 motor control
connector by various MCU control units released by STMicroelectronics which feature
a unified 34-pin motor connector (STM3210B-EVAL, STM32F100-EVAL, STEVALIHM022v1, STM32F10E-EVAL, etc.). The demonstration board is suitable for both field
oriented and scalar controls. In particular, it can handle output signal conditioning for
different types of speed and/or position feedback sensors (such as tachometer, Hall
sensors, and quadrature encoders) and different current sensing topologies (single-shunt
resistor placed on DC bus or three-shunt resistors placed in the three inverter legs).
4.1
Hardware settings for six-step (block commutation) control
of BLDC motors
To drive any motor, the user must ensure that:
●
The motor control demonstration board is driven by a control board that provides the
six output signals required to drive the three-phase power stage
●
The motor is connected to the J2 motor output connector
●
If using an encoder or Hall sensor connection, it is connected to connector J4
●
If using a tachometer connection, it is connected to connector J8
●
If using the brake control feature, connect a dissipative power load to J6 connector
Table 2 below shows the jumper settings for any BLDC high-voltage motors in six-step
(block commutation) control. Please confirm that the demonstration board input voltage is in
the range of 125 VDC to 400 VDC or 90 VAC to 285 VAC. If the voltage doubler is applied,
the input voltage must be in the range of 65 VAC to 145 VAC.
Table 2.
Jumper settings for high-voltage BLDC motor in six-step
control
Jumper
Settings for any HV motor in six-step control
“3.3 V” position for VDD = 3.3 V
W1
“5 V” position for VDD = 5 V
W3
“HIGH VOLTAGE” position
Present for Hall sensor or encoder
W4
Not present for connected tachometer
“R_BRAKE” position for software handling of resistive brake (if any)
W5
“OCP OFF” position for software handling of overcurrent protection disabling
W6
Present for supplying stage from IHM023V2 (max. 50 mA)
Present for connected tachometer
W7
Not present for connected Hall sensor or encoder
24/48
W9
Single-shunt
W10
Not present
W11
Not marked position
Doc ID 15870 Rev 4
UM0723
Hardware setting of the STEVAL-IHM023V2
Table 2.
Jumper settings for high-voltage BLDC motor in six-step
control (continued)
Jumper
W13
Settings for any HV motor in six-step control
Single-shunt
Present for voltage doubler
W14
Not present for standard voltage range
Dash mark position of Hall/encoder with VDD
W16
Not marked position for supplying Hall/encoder with +5 V
Table 3 shows jumper settings for a low-voltage BLDC motor. Please confirm that the input
voltage (mains voltage) of the demonstration board in this case is in the range of 18 VDC to
35 VDC. If it is necessary to supply the motor with a voltage lower than 18 VDC, please
remove the W3 jumper and connect the auxiliary voltage to the J3 connector. This
configuration is called “dual supply configuration”.
In this configuration it may be necessary to modify R2, R4, and R7 resistors according to
applied supply voltage.
Table 3.
Jumper settings for low-voltage BLDC motor in six-step control
Jumper
W1
Settings for any HV motor in six-step control
“3.3 V” position for VDD = 3.3 V
“5 V” position for VDD = 5 V
W3
“<35 V ONLY” position
W4
Present for Hall sensor or encoder
Not present for connected tachometer
W5
“R_BRAKE” position for software handling of resistive brake (if any)
“OCP OFF” position for software handling of overcurrent protection disabling
W6
Present for supplying stage from IHM023V2 (max. 50 mA)
W7
Present for connected tachometer
Not present for connected Hall sensor or encoder
W9
Single-shunt
W10
Not present
W11
Not marked position
W13
Single-shunt
W14
Present for voltage doubler
Not present for standard voltage range
W16
Dash mark position of Hall/encoder with VDD
Not marked position for supplying of Hall/encoder with +5 V
Doc ID 15870 Rev 4
25/48
Hardware setting of the STEVAL-IHM023V2
4.2
UM0723
Hardware settings for “Field Oriented Control” (FOC) in
single-shunt topology current reading configuration
To drive any motor, the user must ensure that:
●
The motor control demonstration board is driven by a control board that provides the
six output signals required to drive the three-phase power stage
●
The motor is connected to the J2 motor output connector
●
If using an encoder or Hall sensor connection, it is connected to connector J4
●
If using a tachometer connection, it is connected to connector J8
●
If using the brake control feature, connect a dissipative power load to J6 connector
Table 4 below shows the jumper settings for any high-voltage motors in single-shunt FOC
configuration. Please confirm that the demonstration board input voltage is in the range of
125 VDC to 400 VDC or 90 VAC to 285 VAC. If the voltage doubler is applied, the input
voltage must be in the range of 65 VAC to 145 VAC.
Table 4.
Jumper
W1
Jumper settings for high-voltage PMAC or generic AC motor in singleshunt FOC control
Jumper settings for FOC of HV PMSM, BLDC or AC IM in single-shunt
configuration for current reading
“3.3 V” position for VDD = 3.3 V
“5 V” position for VDD = 5 V
W3
“HIGH VOLTAGE” position
W4
Present for Hall sensor or encoder
Not present for connected tachometer
W5
“R_BRAKE” position for software handling of resistive brake (if any)
“OCP OFF” position for software handling of overcurrent protection disabling
W6
Present for supplying control stage from IHM023v2 connector with VDD (max. 50
mA)
W7
Present for connected tachometer
Not present for connected Hall sensor or encoder
W9
Single-shunt
W10
Present
W11
Dash mark position
W13
Single-shunt
W14
Not present
W16
Dash marked position for supplying of Hall/encoder with VDD
Not marked position for supplying of Hall/encoder with +5 V
26/48
Doc ID 15870 Rev 4
UM0723
Hardware setting of the STEVAL-IHM023V2
Table 5 shows jumper settings for a low-voltage BLDC motor in single-phase FOC current
control. Please confirm that the input voltage (mains voltage) of the demonstration board in
this case is in the range of 18 VDC to 35 VDC. If it is necessary to supply the motor with
a voltage lower than 18 VDC, please remove the W3 jumper and connect the auxiliary
voltage to the J3 connector.
In this configuration it may be necessary to modify R2, R4, and R7 resistors according to
applied supply voltage.
Table 5.
Jumper settings for low-voltage BLDC motor in single-shunt FOC control
Jumper
W1
Settings for any LV BLDC motor in single-shunt FOC control
“3.3 V” position for VDD = 3.3 V
“5 V” position for VDD = 5 V
W3
“<35 V ONLY” position
W4
Present for Hall sensor or encoder
Not present for connected tachometer
W5
“R_BRAKE” position for software handling of resistive brake (if any)
“OCP OFF” position for software handling of overcurrent protection disabling
W6
Present for supplying control stage from IHM023v2 connector with VDD (max. 50
mA)
W7
Present for connected tachometer
Not present for connected Hall sensor or encoder
W9
Single-shunt
W10
Present
W11
Dash mark position
W13
Single-shunt
W14
Not present
W16
Dash marked position for supplying of Hall/encoder with VDD
Not marked position for supplying of Hall/encoder with +5 V
4.3
Hardware settings for FOC in three-shunt configuration
To drive any motor, the user must ensure that:
●
The motor control demonstration board is driven by a control board that provides the
six outputs signals required to drive the three-phase power stage
●
The motor is connected to the J4 motor output connector
●
If using an encoder or Hall sensor connection, it is connected to connector J5
●
If using a tachometer connection, it is connected to connector J6
●
If using the brake control feature, connect a dissipative power load to J7 connector
Doc ID 15870 Rev 4
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Hardware setting of the STEVAL-IHM023V2
UM0723
Table 6 below shows the jumper settings for three-shunt based FOC of any high-voltage
PMSM, BLDC, or AC IM motor. Please confirm that the demonstration board input voltage is
in the range of 125 VDC to 400 VDC or 90 VAC to 285 VAC. If the voltage doubler is applied,
the input voltage must be in the range of 65 VAC to 145 VAC.
Table 6.
Jumper
Jumper settings for FOC of HV PMSM, BLDC, or AC IM in three-shunt
configuration for current reading
Jumper settings for FOC of HV PMSM, BLDC or AC IM in three-shunt
configuration for current reading
W1
“3.3 V” position
W3
“HIGH VOLTAGE” position
W4
Present for Hall sensor or encoder
Not present for connected tachometer
W5
“R_BRAKE” position for software handling of resistive brake (if any)
“OCP OFF” position for software handling of overcurrent protection disabling
W6
Present for supplying control stage from IHM023v2 connector with VDD (max. 50
mA)
W7
Present for connected tachometer
Not present for connected Hall sensor or encoder
W9
Three-shunt
W10
Present
W11
Silk screen marked position
W13
Three-shunt
W14
Not present
W16
Silk screen marked position for supplying Hall/encoder with VDD
Not marked position for supplying Hall/encoder with +5 V
Table 7 shows jumper settings for three-shunt based FOC of any low-voltage PMSM or
BLDC. Please confirm that the input voltage of the demonstration board in this case is in the
range of 18 VDC to 35 VDC. If it is necessary to supply the motor with a voltage lower than
18 VDC, please remove the W3 jumper and connect the auxiliary voltage to the J3
connector.
In this configuration it may be necessary to modify R2, R4, and R7 resistors according to the
applied supply voltage.
28/48
Doc ID 15870 Rev 4
UM0723
Hardware setting of the STEVAL-IHM023V2
Table 7.
Jumper
Jumper settings for FOC of LV PMSM or BLDC in three-shunt
configuration for current reading
Jumper settings for FOC of LV PMSM or BLDC in three-shunt configuration
for current reading
W1
“3.3 V” position
W3
“<35 V ONLY” position
W4
Present for Hall sensor or encoder
Not present for connected tachometer
W5
“R_BRAKE” position for software handling of resistive brake (if any)
“OCP OFF” position for software handling of overcurrent protection disabling
W6
Present for supplying control stage from IHM023v2 connector with VDD (max. 50
mA)
W7
Present for connected tachometer
Not present for connected Hall sensor or encoder
W9
Three-shunt
W10
Present
W11
Silk screen marked position
W13
Three-shunt
W14
Not present
W16
Silk screen marked position for supplying Hall/encoder with VDD
Not marked position for supplying Hall/encoder with +5 V
Doc ID 15870 Rev 4
29/48
Description of jumpers, test pins, and connectors
5
UM0723
Description of jumpers, test pins, and connectors
The following tables give a detailed description of the jumpers, test pins, and the pinout of
the connectors used.
Table 8.
Jumper
Jumpers description
Selection
“3.3 V” position
W1
Description
VDD = 3.3 V
“5 V” position
VDD = 5 V
“<35 V” ONLY
Linear regulator supplied from DC bus - input supply voltage < 35 VDC
W3
“HIGH VOLTAGE” Buck converter supplied from bus
Present
Hall sensor or encoder connected
W4
Not present
Tachometer connected
“R_BRAKE”
Software brake feature applied
“OCP OFF”
OCP disabled
W5
Present
W6
Not present
Present
Supplying of MCU control board through J5 motor connector with VDD
Separated voltage of MCU control board
Tachometer connected
W7
Not present
Hall sensor or encoder connected
Single-shunt
Any single-shunt configuration
Three-shunt
Any three-shunt configuration
W9
Present
Gain for any FOC
W10
Not present
Gain for six-step control
Dash position
Gain for any FOC
Free position
Gain for six-step control
Single-shunt
Any single-shunt configuration
Three-shunt
Any three-shunt configuration
W11
W13
Present
W14
Not present
Standard single-phase range
Dash position
Hall/encoder supplied by VDD
Free position
Hall/encoder supplied by +5 V
W16
30/48
Voltage doubler applied (VIN = max. 145 VAC)
Doc ID 15870 Rev 4
UM0723
Description of jumpers, test pins, and connectors
Table 9.
Name
Connector pinout description
Reference
Description / pinout
J1
Supply connector
1 - PE-earth
2 - PE-earth
3 - L-phase
4 - N-neutral
J2
Motor connector
A - Phase A
B - Phase B
C - Phase C
J3
15 V auxiliary supply connector
1 - GND
2 - +15 VDC
J4
Hall sensors/ encoder input connector
1 - GND
1 - +VDD/+5 V
1 - Hall sensor input 1/ encoder A+
1 - Hall sensor input 2/ encoder B+
1 - Hall sensor input 3/ encoder Z+
Motor control connector
1 - Emergency stop
2 - GND
3 - PWM-1H
4 - GND
5 - PWM-1L
6 - GND
7 - PWM-2H
8 - GND
9 - PWM-2L
10 - GND
11 - PWM-3H
12 - GND
13 - PWM-3L
14 - HV bus voltage
15 - Current phase A
16 - GND
17 - Current phase B
18 - GND
19 - Current phase C
20 - GND
21 - NTC bypass relay
22 - GND
23 - Dissipative brake PWM
24 - GND
25 - +V power
26 - heatsink temperature
27 - PFC sync.
28 - Vdd_m
29 - PWM VREF
30 - GND
31 - Measure phase A
32 - GND
33 - Measure phase B
34 - measure phase C
J5
Doc ID 15870 Rev 4
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Description of jumpers, test pins, and connectors
Table 9.
Name
UM0723
Connector pinout description (continued)
Reference
Description / pinout
J6
Dissipative brake
1 - Bus voltage
2 - Open collector
J7
BEMF daughterboard connector
1 - Phase A
2 - Phase B
3 - Phase C
4 - Bus voltage
5 - 3.3 VDC
6 - VDD_micro
7 - GND
8 - PWM VREF
J8
Tachometer input connector for AC motor speed loop control
1 - Tachometer bias
2 - Tachometer input
Table 10.
Testing pins description
Number
32/48
Description
TP1
Output phase A
TP2
Output phase B
TP3
Output phase C
TP4
PWM - phase A - low-side
TP5
PWM - phase A - high-side
TP6
PWM - phase B - low-side
TP7
PWM - phase B - high-side
TP8
PWM - phase C - low-side
TP9
PWM - phase C - high-side
TP10
Current sensed in phase A
TP11
Current sensed in phase B
TP23
Current sensed in phase C
TP13
Sensed tachometer/encoder/Hall signal A
TP14
Sensed encoder/Hall signal B
TP15
Sensed encoder/Hall signal Z
TP16
Voltage on bus divider - bus voltage information
TP17
Brake status - brake active in low state
Doc ID 15870 Rev 4
UM0723
Connector placement
Table 10.
Testing pins description (continued)
Number
6
Description
TP18
3.3 VDC
TP19
15 VDC
TP20
Reference voltage 2.5 V for overtemperature protection
TP21
GND
TP24
5 VDC
Connector placement
A basic description of the placement of all connectors on the board is visible in Figure 15.
Figure 15. STEVAL-IHM023V2 connectors placement
Doc ID 15870 Rev 4
33/48
Bill of material
7
UM0723
Bill of material
A list of components used to build the demonstration board is shown in Table 11. The
majority of the active components used are available from STMicroelectronics.
Table 11.
Bill of material
Quantity
Reference
Value / generic
part number
Package / class
Manufacturer
Y1 safety CAP - 4.7 nF
Murata Manufacturing
Co., Ltd.
Elyt. capacitor, RM 10 mm,
30 x 45, 105 °C
Panasonic
2
C1, C5
2.2 nF/Y1
2
C2, C3
1200 μF/250 V
1
C13
N.C.
1
C14
220 nF/25 V
1
C15
3.3 μF/450 V
1
C16
1 μF/50 V
Elyt. capacitor, SMD 4 x 4
Panasonic
1
C19
100 μF/25 V
Elyt. capacitor, SMD 8 x 8
Panasonic
9
C66, C67, C71, C72,
C73, C26, C24, C27,
C28, C6, C7, C17,
C18, C10, C11
100 nF/25 V
Capacitor, SMD 0805
3
C69, C70, C74
10 pF/25 V
Capacitor, SMD 0805
1
C25
4.7 μF/25 V
Elyt. capacitor, SMD 4 x 4
1
C29
2.2 nF/25 V
Capacitor, SMD 0805
1
C30
4.7 nF/25 V
Capacitor, SMD 0805
3
C31, C42, C53
330 pF/25 V
Capacitor, SMD 0805
6
C32, C33, C43, C44,
C54, C55
1 μF/50 V
Capacitor, SMD 1206; 50 V
6
C34, C35, C45, C46,
C58, C59
10 pF/25 V
Capacitor, SMD 0805
4
C36, C47, C60, C75
1 nF/25 V
Capacitor, SMD 0805
3
C37, C48, C61
470 nF/25 V
Capacitor, SMD 0805
3
C39, C50, C62
100 pF/25 V
Capacitor, SMD 0805
1
C4
150 nF/X2
Foil X2 capacitor, RM 22.5 mm
3
C40, C49, C63
2.2 nF/25 V
Capacitor, SMD 0805
3
C41, C51, C64
33 pF/25 V
Capacitor, SMD 0805
1
C52
330 pF/25 V
Capacitor, SMD 0805
1
C65
100 pF/25 V
Capacitor, SMD 0805
1
C56
100 nF/25 V
Capacitor, SMD 0805
1
C57
470 pF/25 V
Capacitor, SMD 0805
34/48
Capacitor, SMD 0805
Panasonic
Doc ID 15870 Rev 4
Panasonic
Arcotronics
UM0723
Table 11.
Bill of material
Bill of material (continued)
Quantity
Reference
Value / generic
part number
Package / class
Manufacturer
1
C12
47 nF/25 V
Capacitor, SMD 0805
2
C8, C68
22 μF/6.3 V
Elyt. capacitor, SMD 4 x 4
2
C9, C38
10 nF/25 V
Capacitor, SMD 0805
1
RT1
10 kΩ
NTC
EPCOS
B57703M103G40
1
VR1
10 Ω
NTC
EPCOS B57364S100M
3
R1, R3, R6
100 kΩ
Resistor, SMD 1206
1
R10
13 kΩ
Resistor, SMD 0805, 1%
4
R11, R14, R120, R121
5.6 kΩ
Resistor, SMD 0805
1
R12
N.C.
1
R13
160 Ω
Resistor, SMD 1206
9
R112, R113, R114,
R115, R116, R117,
R109, R110, R111
4.7 kΩ
Resistor, SMD 0805
1
R18
6.8 kΩ
Resistor, SMD 0805
2
R19, R108
4
R2, R4, R23, R24
470 kΩ
Resistor, SMD 1206, 1%
3
R21, R107, R106
220 Ω
Resistor, SMD 0805
6
R22, R27, R20, R33,
R74, R17
10 kΩ
Resistor, SMD 0805
1
R25
560 Ω
Resistor, SMD 0805
1
R32
9.1 kΩ
Resistor, SMD 0805, 1%
1
R26
1 kΩ
Resistor, SMD 0805, 1%
3
R28, R122, R123
2.2 kΩ
Resistor, SMD 0805
1
R29
100 Ω
Resistor, SMD 0805
1
R30
15 kΩ
Resistor, SMD 0805
1
R31
27 kΩ
Resistor, SMD 0805, 1%
1
R34
12 kΩ
Resistor, SMD 0805, 1%
4
R35, R36, R57, R82
100 kΩ
Resistor, SMD 0805
4
R37, R41, R58, R62
10 Ω
Resistor, SMD 0805
6
R38, R59, R85, R40,
R61, R87
1 kΩ
Resistor, SMD 0805, 1%
4
R39, R45, R60, R65
120 Ω
Resistor, SMD 0805
3
R42, R63, R89
3.3 kΩ
Resistor, SMD 0805
3
R43, R64, R90
47 kΩ
Resistor, SMD 0805, 1%
1
R44
3.6 kΩ
Resistor, SMD 0805, 1%
Panasonic
N.C.
Doc ID 15870 Rev 4
35/48
Bill of material
Table 11.
UM0723
Bill of material (continued)
Quantity
Reference
Value / generic
part number
Manufacturer
3
R46, R66, R92
1
R49
2
R5, R9
120 Ω
Resistor, SMD 0805
3
R52, R97, R78
3.3 kΩ
Resistor, SMD 0805, 1%
3
R54, R76, R100
820 Ω
Resistor, SMD 0805, 1%
3
R55, R71, R101
0.15 Ω
Resistor, SMD 2512, 1%, 2 W
3
R56, R68, R102
N.C.
6
R67, R70, R75, R79,
R50, R53
1 kΩ
Resistor, SMD 0805, 1%
1
R69
680 Ω
Resistor, SMD 0805, 1%
1
R7
7.5 Ω
Resistor, SMD 0805, 1%
6
R72, R48, R47, R77,
R51, R98
1 kΩ
Resistor, SMD 0805, 1%
1
R73
N.C.
1
R8
51 kΩ
Resistor, SMD 0805, 1%
1
R80
2.2 kΩ
Resistor, SMD 0805, 1%
1
R81
33 Ω
Resistor, SMD 0805, 1%
2
R83, R88
10 Ω
Resistor, SMD 0805
1
R104
68 kΩ
Resistor, SMD 0805
1
R84
2.2 kΩ
Resistor, SMD 0805
2
R86, R91
120 Ω
Resistor, SMD 0805
5
R93, R95, R99, R94,
R103
1 kΩ
Resistor, SMD 0805, 1%
1
R96
N.C.
1
R105
220 kΩ
Resistor, SMD 0805, 1%
1
L1
47 μH
SMD choke, 0.5 A
Panasonic
1
L2
2.2 mH
SMD choke, 0.25 A
Würth Elektronik
1
D1
KBU6K
Diode bridge, 250 VAC, 8 A
7
D11, D12, D15, D16,
D19, D20, D2, D23,
D24
BAT48
Diode, SMD, SOD-323
8
D13, D5, D14, D17,
D18, D21, D22, D10
1N4148
Universal diode, SMD, SOD80C
2
D25, D29
1
1
36/48
3.3 kΩ
Package / class
Resistor, SMD 0805, 1%
N.C.
STMicroelectronics
BZX84B13V
Zener diode, SOT23, 13 V
D3
STPS1150
Schottky diode, DO-241AC
(SMA)
STMicroelectronics
D4
SM6T36
Transil™, JEDEC DO-214AA
STMicroelectronics
Doc ID 15870 Rev 4
UM0723
Bill of material
Table 11.
Bill of material (continued)
Quantity
Reference
Value / generic
part number
STTH1L06
Package / class
2
D6, D8
1
D7
LED GREEN
Universal LED 3 mm, 2 mA
1
D9
BZV55C18SMD
Zener diode, SOD80, 18 V
1
D27
LED YELLOW
Universal LED 3 mm, 2 mA
1
D28
LED RED
Universal LED 3 mm, 2 mA
1
D26
STTH2L06
HV diode, SMA
10
Q1, Q4, Q5, Q12, Q13,
Q14, Q15, Q16, Q17,
Q18
7
Q10, Q11, Q3, Q6, Q7,
Q8, Q9
1
Q2
BC857B
1
F1
Holder
Fuse holder 5 x 20 mm, KS21
SW
1
F1
6.25 A
Fuse 6.25 A Slov., FST06.3,
5 x 20 mm
1
LS1
Finder 4031-12
1
U1
LD1117S33
1
U2
L7815
1
U3
VIPer16
2
U4, U8
3
U5, U6, U7
1
BC847
HV diode, SMA
Manufacturer
STMicroelectronics
STMicroelectronics
NPN transistor, SOT23
STGP10NC60KD N-channel IGBT, TO220
STMicroelectronics
PNP transistor, SOT23
SCHURTER
Relay 12 VDC
Finder
Linear regulator 3.3 V, SOT223
STMicroelectronics
Linear regulator 15 V, TO-220
STMicroelectronics
Smart PWM driver, SO-16
STMicroelectronics
TS391
Voltage comparator, SOT23-5
STMicroelectronics
L6390
HV low and high-side driver,
SO-16
STMicroelectronics
U9
TS3431
Voltage reference, SOT23-3L
STMicroelectronics
1
U10
L78M05C
Linear regulator 5 V, DPAK
STMicroelectronics
1
U11
M74HC14
Hex Schmitt inverter SOP
STMicroelectronics
3
TP1, TP2, TP3
18
TP4 - TP24
PCB terminal
1 mm
Test pin
1
J1
Connector 4P
Connector RM 5 mm, 4-pole
male horizontal
PHOENIX CONTACT
Connector 4P
Connector RM 5 mm, 4-pole
female parallel
PHOENIX CONTACT
Connector 3P
Connector RM 5 mm, 3-pole
male horizontal
PHOENIX CONTACT
Connector 3P
Connector RM 5 mm, 3-pole
female parallel
PHOENIX CONTACT
1
1
1
J2
N.C.
Doc ID 15870 Rev 4
37/48
Bill of material
Table 11.
UM0723
Bill of material (continued)
Quantity
Reference
Value / generic
part number
Package / class
Manufacturer
1
J3
Con. 5 mm, 2P
Connector RM 5 mm, 2-pole,
screw
PHOENIX CONTACT
1
J4
Connector 5P
Autocom HE14 5-pin
Stelvio Kontek
1
J5
MLW34G
MLW connector 34-pin
Tyco Electronics
1
J6
Con. 5 mm, 2P
Connector RM 5 mm, 2-pole,
screw
PHOENIX CONTACT
1
J7
Con. 2.54 mm
12-pin
Pins RM 2.54 mm female, 12-pin
1
J8
Con. 5 mm, 2P
Connector RM 5 mm, 2-pole,
screw
1
W1
Jumper 2.54
Three pins of break way +
jumper in position 3.3 V
1
W10
Jumper 2.54
Two pins of break way + jumper
1
W11
Jumper 2.54
Three pins of break way +
jumper in position 3.3 V
3
W13
Mounting hole
Three way HV selector, default
three-shunt position
Insulated jumper
blue
HV insulated jumper, 5.08 mm,
default three-shunt position
1
3
W3
1
Mounting hole
Three way HV selector
Insulated jumper
blue
HV insulated jumper, 5.08 mm,
default “HIGH VOLTAGE”
position
1
W4
Jumper 2.54
Two pins of break way + jumper
1
W5
Jumper 2.54
Three pins of break way +
jumper in position R_BRAKE
1
W6
Jumper 2.54
Two pins of break way
1
W7
Jumper 2.54
Two pins of break way
3
W9
Mounting hole
Three way HV selector, default
three-shunt position
Insulated jumper
blue
HV insulated jumper, 5.08 mm,
default three-shunt position
1
PHOENIX CONTACT
1
W14
Wire jumper
Not assembled
1
W16
Jumper 2.54
Three pins of break way +
jumper in position 1
Heatsink
150 mm of AL profile 8693
PADA Engineering
Heatsink
Heatsink for TO-220 with
montage pin
PADA Engineering
Clip for het
Montage clip PADA 7704,
TO-220, 10 mm
PADA Engineering
150 mm Het 1
1
7
38/48
Het 2
Doc ID 15870 Rev 4
UM0723
Table 11.
Quantity
Bill of material
Bill of material (continued)
Reference
Value / generic
part number
1
Clip for het
130 mm
Isolation tape
Package / class
Montage clip PADA 7703,
TO-220, 15 mm
Manufacturer
PADA Engineering
Isolation tape, 24 mm wide;
approx. 130 mm long, self
adhesive
Doc ID 15870 Rev 4
39/48
PCB layout
8
UM0723
PCB layout
For this application a standard, double-layer, coppered PCB with a ~60 μm copper thickness
was selected. The PCB material is FR-4.
The dimensions of the board are:
Length:
182 mm
Width:
127 mm
PCB thickness: 1.55 mm
40/48
Doc ID 15870 Rev 4
UM0723
PCB layout
Figure 16. Silk screen - top side
Doc ID 15870 Rev 4
41/48
PCB layout
UM0723
Figure 17. Silk screen - bottom side
42/48
Doc ID 15870 Rev 4
UM0723
PCB layout
Figure 18. Copper tracks - top side
Figure 19. Copper tracks - bottom side
Doc ID 15870 Rev 4
43/48
Ordering information
9
UM0723
Ordering information
The demonstration board is orderable through the standard ordering system, the ordering
code is: STEVAL-IHM023V2. The items delivered include the assembled demonstration
board, board documentation, PCB fabrication data such as gerber files, assembly files (pick
and place), and component documentation.
10
Using STEVAL-IHM023V2 with STM32 PMSM FOC
firmware library v3.0
The “STM32 PMSM FOC firmware library v3.0” is part of the STM32 PMSM single/dual
FOC SDK v3.0. In particular, it is a firmware library running on any STM32F103x and
STM32F100x device which implements the “Field Oriented Control” (FOC) drive of threephase “Permanent Magnet Synchronous Motors” (PMSM), both “Surface Mounted” (SMPMSM) and “Internal” (I-PMSM).
This section describes how to customize the firmware library by making use of the PC tool
“ST MC Workbench” (STMCWB) downloadable from www.st.com.
10.1
Environmental considerations
Warning:
The STEVAL-IHM023V2 demonstration board must only be
used in a power laboratory. The voltage used in the drive
system presents a shock hazard.
The kit is not electrically isolated from the DC input. This topology is very common in motor
drives. The microprocessor is grounded by the integrated ground of the DC bus. The
microprocessor and associated circuitry are hot and MUST be isolated from user controls
and communication interfaces.
Warning:
All measuring equipment must be isolated from the main
power supply before powering up the motor drive. To use an
oscilloscope with the kit, it is safer to isolate the DC supply
AND the oscilloscope. This prevents a shock occurring as
a result of touching any SINGLE point in the circuit, but does
NOT prevent shocks when touching two or more points in the
circuit.
An isolated AC power supply can be constructed using an isolation transformer and
a variable transformer.
Note:
44/48
Isolating the application rather than the oscilloscope is highly recommended in any case.
Doc ID 15870 Rev 4
UM0723
10.2
Using STEVAL-IHM023V2 with STM32 PMSM FOC firmware library v3.0
Hardware requirements
The following items are required to run the STEVAL-IHM023V2 together with the “STM32
PMSM FOC firmware library v3.0”.
10.3
●
Any microcontroller demonstration board with MC connector such as: STEVALIHM022V1, STEVAL-IHM033V1, STM3210B-EVAL, STM3210E-EVAL, or
STM32100B-EVAL
●
A high-voltage insulated AC power supply up to 230 VAC
●
A programmer/debugger dongle for control board (not included in the package). Refer
to the control board user manual to find a supported dongle. Use of an insulated dongle
is always recommended.
●
Three-phase brushless motor with permanent magnet rotor (not included in the
package)
●
An insulated oscilloscope (as necessary)
●
An insulated multimeter (as necessary)
Software requirements
To customize, compile, and download the “STM32 FOC firmware library v3.0”, a toolchain
must be installed.
10.4
STM32 FOC firmware library v3.0 customization
The ST motor control workbench can be used to customize the STM32 FOC firmware
library v.3.0.
The required parameters for the power stage related to the STEVAL-IHM023V2 are reported
in Table 12.
Table 12.
STEVAL-IHM023V2 motor control workbench parameters
Variable
Value
Rated bus voltage information
Min. rated voltage (V)
18 or 60 according to W3 position (respectively
for “<35 V” and “HIGH VOLTAGE” positions)
Max. rated voltage (V)
32 or 450 according to W3 position (respectively
for “<35 V” and “HIGH VOLTAGE” positions)
Nominal voltage (V)
Depends on W3 position and application nominal
bus voltage
Bus voltage sensing
Available
Bus voltage divider 1/...
Dissipative brake
136
Available if W5 is set to R_BRAKE position, not
available otherwise
Polarity
Active high
Driving signals
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Using STEVAL-IHM023V2 with STM32 PMSM FOC firmware library v3.0
Table 12.
UM0723
STEVAL-IHM023V2 motor control workbench parameters (continued)
Variable
Value
Phases U, V, W high-side polarity
Active high
Phases U, V, W low-side polarity
Active low
Temperature sensing
Available
V0 (mV)
875
T0 (°C)
25
ΔV/ΔT (mV/°C)
28
Max. working temperature on sensor (°C)
70
Overcurrent protection
Available
Comparator threshold (V)
0.5
Overcurrent network gain (V/A)
0.075
Expected overcurrent threshold (A)
6.25
Overcurrent feedback signal polarity
Active low
Overcurrent protection disabling network
Available if W5 is set to OCP OFF position, not
available otherwise
Overcurrent protection disabling network polarity
Active low
Current sensing
Current reading topology
Configurable
Shunt resistor(s) value (Ω)
0.15
Amplifying network gain
1.7
T-noise (ns)
2000
T-rise (ns)
2000
Power switches
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Min. deadtime (ns)
800
Max. switching frequency (kHz)
50
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11
Conclusion
Conclusion
This document describes the 1 kW three-phase motor control STEVAL-IHM023V2
demonstration board as a universal fully evaluated and adaptable motor control platform.
12
13
References
1.
L6390 datasheet
2.
VIPer16 datasheet
3.
STGP10NC60KD datasheet
4.
UM0379 user manual
5.
UM0580 user manual
Revision history
Table 13.
Document revision history
Date
Revision
07-Sep-2009
1
Initial release.
2
Changed part number STGF7NC60HD to STGP10NC60KD in
Figure 10, updated input voltage in Section 4.2, step 3 in
Section 10.4, replaced STEVAL-IHM023V1 by STEVAL-IHM021V1
in point 5 of Section 12.
03-May-2011
3
Replaced STEVAL- IHM023V1 by STEVAL-IHM023V2, updated
Section 1, Figure 1, Section 2.1, Section 3.1, Figure 3 to Figure 8,
Section 3.3, Section 4 to Section 12, minor text and graphic
modifications throughout the document.
28-Jun-2011
4
Updated Table 12, corrected typo in Figure 7 and Figure 8.
27-Nov-2009
Changes
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UM0723
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