dsPICDEM TM MCLV
DEVELOPMENT BOARD
USER ’S GUIDE
Chapter 1. Introduction
The dsPICDEM MCLV Development Board is targeted to control a Brushless DC
(BLDC) motor or Permanent Magnet Synchronous Motor (PMSM) in sensor or
sensorless operation. This flexible and cost-effective board can be configured in
different ways for use with Microchip’s specialized motor control digital signal
controllers. The dsPICDEM MCLV Development Board supports the dsPIC33F motor
control device family. It offers a mounting option to connect either a 28-pin SOIC device
or a generic 100-pin Plug-In Module (PIM). The board also has a three-phase inverter
bridge circuit. The circuit drives a BLDC or PMSM motor using different control
techniques without requiring any additional hardware. Topics covered include:
1.1
1.2
OVERVIEW OF THE dsPICDEM MCLV DEVELOPMENT BOARD
Figure 1-1 shows a simplified block diagram of the dsPICDEM MCLV Development
Board. A dsPIC33F device uses the gate driver to drive the three-phase inverter that
powers the motor windings. The board includes various circuitry to perform the
following functions:
? Measure the feedback signals (e.g., voltage, current, Hall sensors and Fault
signals)
? Communicate with a host computer or an external device via CAN, LIN, USB or
RS-232 interface
? Drive a three-phase inverter
It also provides the option to interface Hall sensors or a Quadrature Encoder for
sensored commutation.
The dsPICDEM MCLV Development Board supports motors with terminal voltage up to
48V and current up to 15A. Refer to Appendix B. “Electrical Specifications” for
more information on electrical specifications.
FEATURES OVERVIEW
The key features of this board include the following:
? Devices Supported:
- 28-pin to 100-pin dsPIC33FJXXXMC202 PIM (MA330014) with a dsPIC33F
Motor control device (U9) socket
- 44-pin to 100-pin dsPIC33FJXXXMCX04 PIM (MA330017 and MA330018)
with a dsPIC33F Motor Control device (U9) socket
- 100-pin to 100-pin dsPIC33FJXXXMCX10 PIM (MA330013) with a dsPIC33F
Motor control device (U9) socket
- The dsPIC33FJ12MC202 Motor Control device in SOIC package (U2)
footprint
? 2008 Microchip Technology Inc.
DS70331A-page 7
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