Appendix A. Schematics And Layout; Board Schematics And Layout - Microchip Technology dsPIC33CK User Manual

Appendix A. Schematics and Layout

A.1

BOARD SCHEMATICS AND LAYOUT

This section provides schematics and PCB layout diagrams of the dsPIC33CK
Low-Voltage Motor Control Board. The Motor Control Board uses a four-layer FR4, 1.6
mm, Plated-Through-Hole (PTH) construction.
Table A-1
TABLE A-1:
Figure Index
Figure A-1
Figure A-2
Figure A-3
Figure A-4
Figure A-5
Figure A-6
Figure A-7
Figure A-8
Table A-2
TABLE A-2:
 2020 Microchip Technology Inc.
summarizes the schematics of the Motor Control Board:
SCHEMATICS
Schematics
Sheet No.
1 of 8 Input Power Supply Connections: +12V DC-DC Converter;
+5V DC-DC Converter; +3.3V LDO
2 of 8 dsPIC33CK256MP508 Interconnections: MCLR Reset;
ICSP™ Header; dsPIC
amplifying Bus Current and Phase Currents
3 of 8 1.65V Voltage Reference Buffer: External Operational
Amplifiers for amplifying Bus Current and Phase Currents;
Potentiometer; DC Bus Voltage Sensing Circuit; Phase
Voltages Sensing Circuit; Temperature Sensing Circuits
4 of 8 Motor Control Inverter: Gate Drivers; Three-Phase MOSFET
Bridge
5 of 8 Click Board Sockets (A, B); LED Indications; Push Buttons;
USB to UART Converter
6 of 8 Hall Sensor Interface Circuit; Quadrature Encoder Interface
Circuit
7 of 8 PKOB: Microcontroller; USB Port, etc.
8 of 8 PKOB: Buffers
summarizes the layout diagrams of the Motor Control Board:
PCB LAYERS
Figure Index
Figure A-9 Top Layer: Top Silk and Top Copper
Figure A-10 Mid Layer -1: Copper
Figure A-11 Mid Layer -2: Copper
Figure A-12 Bottom Layer: Bottom Silk and Bottom Copper
dsPIC33CK LOW-VOLTAGE
MOTOR CONTROL BOARD
USER'S GUIDE
Hardware Sections
®
DSC Operational Amplifiers for
Description
DS50002927A-page 43