GS153

DS93001A-page 4

© 2005 Microchip Technology Inc.

dsPIC30F HARDWARE MODULES TO

CONTROL BLDC MOTORS

Micorchip offers a number of hardware tools to help you

implement your own BLDC motor control solution.

FIGURE 3:

PICDEM™ MC LV BOARD

PICDEM MC LV Board

This board offers a self-contained, low-voltage platform

(Figure 3) that supports all 28-pin motor control

dsPIC30F devices, including the dsPIC30F2010,

dsPIC30F3010 and the dsPIC30F4012. Hardware sup-

port for sensored, as well as sensorless, BLDC motors

is available on this board. The factory shipped board

supports a motor voltage of 24V; however, the

hardware can support voltages from 10V to 40V at

motor currents of up to 4 Amps.

A serial port is available to communicate with an

ger connection is available for programming and

debugging purposes. A potentiometer is available for

speed control, along with two switches for start/stop

control.

On-board power drivers support direct drive to the

BLDC motor. A low-side power resistor supplies current

and Fault feedback to the dsPIC DSC. The “

PICDEM™

MC LV Development Board User’s Guide” (DS51554)

provides details on the use of this board.

dsPICDEM MC1 Motor Control

Development Board

The dsPICDEM MC1 Motor Control Development

Board (Figure 4), is a general purpose development

board that uses a dsPIC30F6010 to control a wide

range of motor control applications, including sensored

and sensorless BLDC motors. Serial RS-232 and CAN

ports are supported, along with an ICD 2 In-Circuit

Debugger connection for programming and debugging

purposes.

A two-lines by 20-character LCD is used along with four

LEDs for display purposes. Four push buttons and two

potentiometers are available for data entry and feed-

back. Spare analog and digital pins are made available

on two header banks.

No drivers are available on the board, so the MC1

board must be connected to an external drive system.

A 37-pin D-type connector is used to connect the MC1

board to a dsPICDEM MC1H 3-Phase High-Voltage

module (Figure 5) or dsPICDEM MC1L 3-Phase Low-

Voltage module (Figure 6). The D-type connector

connects to external circuitry via opto isolators, thus

allowing for a safe, electrically isolated drive to high

voltage (400 VDC).

The dsPICDEM MC1 Motor Control Development

Board can be used with a dsPICDEM MC1H 3-Phase

High-Voltage Power module to drive a high-voltage

BLDC motor. Refer to the “

dsPICDEM™ MC1 Motor

Control Development Board User’s Guide” (DS70098)

for full details on the capabilities and functions

available on this board.

FIGURE 4:

dsPICDEM™ MC1 MOTOR

CONTROL DEVELOPMENT

BOARD

[Insert photo of dsPICDEM MC1 Board]