Microchip Technology MCP6 series Manual de usuario descargar pdf (Pagina 15)

 2004 Microchip Technology Inc. DS00900A-page 15

AN900

FIGURE A-2: BOARD SCHEMATIC, PART 1 (PIC18F4431 MICROCONTROLLER, PCPWM

ISOLATORS, CURRENT COMPARATOR AND ASSOCIATED PARTS)

RESET

SW2 (FWD/REV)

SW1 (ON/OFF)

0.1 µF

0.1 µF0.1 µF

0.1 µF

220 µF

0.1 µF

0.1 µF 33 pF

33 pF

VREF

MCLR/V

RA0/AN0

RA1/AN1

RA2/AN2/V

REF

RA3/AN3/V

REF

RA4/CAP3

RA5/AN5/LVDIN

RE0/AN6

RE1/AN7

RE2/AN8

OSC1/CLKI/RA7

OSC2/CLKO/RA6

RC0/T1OSO/T1CKI

RC1/T1OSI/CCP2

RC2/CCP1

RC3/INT0

RD0/T0CKI/GPCKI

RD1/SDO

RB7/PGD

RB6/PGC

RB5/PWM4

RB4/PWM5

RB3/PWM3

RB2/PWM2

RB1/PWM1

RB0/PWM0

RD7/PWM7

RD6/PWM6

RD5

RD4/FLTA

RC7/RX/DT

RC6/TX/CK/SS

RC5/INT2

RC4/INT1

RD3/SCK/SCL

RD2/SDI/SDA

PIC18F4431

AN1

CA1

CA2

AN2

V01

V02

GND

AN1

CA1

CA2

AN2

V01

V02

GND

AN1

CA1

CA2

AN2

V01

V02

GND

MCP6002-DIP8

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 23 24

INTRODUCTION 1
SYSTEM OVERVIEW 2
OVERVIEW OF CONTROL 3
STRATEGIES 3
FIRMWARE OVERVIEW 5
Main Loop 6
Fault Service 6
V/f CONTROL FIRMWARE 9
PWM Waveform Synthesis 10
PID CONTROL FIRMWARE 11
CLOSED-LOOP SLIP CONTROL 11
COMPARING MICROCONTROLLERS 12
FOR AC INDUCTION MOTOR 12
CONTROL APPLICATIONS 12
CONCLUSION 13
REFERENCES 13
APPENDIX A: PICDEM™ MC 14
BOARD OVERVIEW 14
SW2 (FWD/REV) 15
SW1 (ON/OFF) 15
PIC18F4431 15
OPTIONAL 16
CONNECTORS, MONITOR LEDS) 17
BLDC OPERATION) 18
CURRENT MEASUREMENT) 19
CURRENT TRANSDUCER CIRCUITRY) 20
APPENDIX B: SOFTWARE 22
DISCUSSED IN THIS 22
APPLICATION NOTE 22
ORLDWIDE SALES AND SERVICE 24

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Microchip Technology MCP6 series Manual de usuario Pagina 15

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