8-bit Motor Control Sell Sheet

8-bit PIC® Microcontrollers for Motor Control
Precision Control with Integrated Feedback
Summary
Designers of motor control applications constantly
face the challenge of increasing efficiency and control,
while reducing system cost and components. Finding a
balance within these constraints can be accomplished
by employing preferred techniques such as Peak Current
Mode Control (PCMC). To optimize the efficiency of any
system, precise control over switch timing and maintaining
constant feedback is crucial. Using a PIC MCU with switch
drive capability and feedback components integrated into
one chip can help you simplify your system design and
reduce costs.
Levels of Motor Control
Within the motor control market, there are different levels
of integration and intelligence. Each increase provides
more precision and control as well as system efficiency.
The most commonly used levels are described below:
■■ Level 1: Limited intelligence is required; the MCU is used
for basic control and supervisory functions. The controller
handles on/off control, temperature monitoring, automatic
shutdown and watchdog fault detection.
■■ Level 2: This level of integration utilizes an MCU with
PWMs for motor drive and to interface with analog
components for feedback control. The controller is now
able to adjust the motor speed depending on application
needs, overcurrent or thermal shutdown conditions.
Communication can be found in remote applications
for improved system control. Advanced systems may
require special features to ensure safe motor operation
in accordance with government regulations.
■■ Level 3: The last level adds increased intelligence for
improved efficiency. The controller provides control
over motor waveforms and commutation, which allows
the use of advanced algorithms to optimize control
and efficiency. Increased system flexibility is needed
to reconfigure control loops on the fly as needed for
the application.
8-bit PIC MCUs for Motor Control
Products within the 8-bit PIC MCU families offer
performance up to 16 MIPS, with many different
options that can handle each level of integration. Core
Independent Peripherals (CIP) optimized for controlling
1/2 bridge, H-bridge and 3 phase motors, coupled
with Intelligent Analog for Peak Current Mode Control
(PCMC) and software PID controller creation, as well
as communication peripherals, provide the integration
needed to reduce system cost while increasing efficiency
and control. From the simplicity of the PIC10F family to
the hardware multiplier of the PIC18F, the 8-bit PIC MCU
product line has the right solution for your system design.
Integrated Peripherals
Intelligent Analog and Control
■■ Math Accelerator (MathACC)
• Multiply, add and accumulate 8-/16-bit values with
35-bit results
• Calculates a 16-bit PID function based on configurable
K p, K i and K d constants with a 34-bit result
■■ Hardware Multiplier (MULT)
• Multiply 8-bit values with 16-bit resolution
■■ Angular Timer (AngTMR)
• Phase angle timer for measurement and control of
rotational and periodic events
■■ Zero Cross Detect (ZCD)
• AC high-voltage zero crossing detection for
simplifying TRIAC control, synchronized switching
control and timing
■■ 24-bit Signal Measurement Timer (SMT)
• Accurate measurement of any digital signal including
period, duty cycle, time of flight and instantaneous
vs. average measurements
• General-purpose 24-bit timer/counter
■■ Hardware Limit Timer (HLT)
• Hardware monitoring for missed periodic events and
fault detection
• General-purpose 8-bit timer/counter with external
reset capabilities
■■ Configurable Logic Cell (CLC)
• Integrated combinational and sequential logic
• Custom interconnection and re-routing of
digital peripherals
■■ Operational Amplifier (OPA)
• General purpose op amp for internal and external
signal source conditioning
■■ High Speed Comparator (HSComp)
• General purpose rail-to-rail comparator with < 50 ns
response time
Integrated Peripherals (Continued)
■■ Pulse Width Modulation (PWM)
• General-purpose 10-bit PWM
■■ (Enhanced) Capture Compare PWM (CCP/ECCP)
• 10-bit PWM control with 16-bit capture, compare and
auto shutdown
■■ Complementary Output Generator (COG)
• Automated complementary output with
programmable rising/falling edge events, auto
shutdown, polarity, phase, precision deadband and
blanking control
■■ Complementary Waveform Generator (CWG)
• Automated complementary output with auto
shutdown and deadband control
■■ Numerically Controlled Oscillator (NCO)
• Precision linear frequency generator (PWM @ 50%
duty cycle) with 0.0001% step size of source input
clock frequency
• General-purpose 20-bit timer/counter
Intelligent Analog and Control (Continued)
■■ Digital to Analog Converter (DAC )
• Programmable voltage reference with multiple
internal and external connections
■■ Analog to Digital Converter (ADC)
• General purpose 8-/10-/12-bit ADC with stable
voltage reference
Signal Generation
■■ Programmable Switch Mode Controller (PSMC)
• 16-bit PWMs with dedicated 64 MHz clock
• Automated complementary output with
programmable rising/falling edge events, auto
shutdown, polarity, phase, deadband and blanking
control
• General-purpose 16-bit timer/counter
■■ 16-bit PWM
• 16-bit PWM with edge and center aligned modes
• General-purpose 16-bit timer/counter
COG/CWG
CLC
HLT
SMT
I2C/SPI
–
–
–
–
–
–
1
–
1
0/1
1
–
–
–
–
–
–
–
1/0/0
1
–
3
–
–
0/1
–
–
–
–
1
PIC12F1612
3.5K
256
HEF*
6
0/4/0
–
–
–
0/1/0
1
2/0
–
–
–
0/1
–
3
2
–
–
PIC16F1615
14K
1K
HEF*
12
0/8/0
–
1/0
1
0/1/0
2
2/0
2
–
–
0/1
4
3
2
1
1
1
SRAM
(B)
EUSART
NCO
3/0/0
0/4/0
PWM
4
6
AngTMR
–
HEF*
Op Amp
64
256
A/D (Ch)
8/10/12b
896
3.5K
I/O Pins
PIC10F322
PIC12F1572
Device
EEPROM
PSMC
CCP/ECCP
Comparator
DAC 5/8/9b
MathACC/
MULT
Program
Memory (B)
Select 8-bit MCUs for Motor Control
PIC16F1829
14K
1K
256
18
0/12/0
–
–
–
1/0/0
2
2/2
–
–
–
–
–
–
–
1
PIC16F1709
14K
1K
HEF*
18
0/12/0
2
–
–
0/1/0
2
2/0
2
–
–
1/0
3
–
–
1
1
PIC16F1619
14K
1K
HEF*
18
0/12/0
–
1/0
1
0/1/0
2
2/0
2
–
–
0/1
4
4
2
1
1
PIC18F24K22
16K
512
256
18
0/12/0
–
0/1
–
–
2
0/1
–
–
–
–
–
–
–
1
1
PIC16F1789
28K
2K
256
36
0/0/14
3
–
–
3/1/0
4
3/0
–
4
–
–
–
–
–
1
1
PICkit™ 3 In-Circuit Debugger (PG164130)
MPLAB® ICD 3 In-Circuit Debugger (DV164035)
PICDEM™ Lab Development Kit (DM163045)
MPLAB PM3 Universal Device Programmer (DV007004)
MPLAB Starter Kit for PIC18F MCU (DM180021)
■■ ■■ ■■ ■■ ■■ ■■ *HEF = 128B of High-Endurance Flash
Development Tools
■■ ■■ ■■ ■■ ■■ PICDEM PIC18 Explorer Board (DM183032)
F1 LV Evaluation Platform (DM164130-5)
F1 BLCD Motor Add-On (DM164130-2)
F1 BDC Motor Add-On (DM164130-6)
F1 Bipolar Motor Add-On (DM164130-7)
F1 Unipolar Motor Add-On (DM164130-8)
www.microchip.com/8bit
Visit our web site for additional product information and to locate your local sales office.
Microchip Technology Inc. • 2355 W. Chandler Blvd. • Chandler, AZ 85224-6199
Information subject to change. The Microchip name and logo, the Microchip logo, MPLAB and PIC are registered trademarks and PICDEM and PICkit are trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries. All other trademarks mentioned herein are property of their respective companies. © 2015, Microchip Technology Incorporated. All Rights Reserved. Printed in the U.S.A. 8/15
DS30010025C
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