Freescale Semiconductor, Inc.
Designer Reference Manual — 3-ph. ACIM Drive with DTC
Section 3. Hardware Design
3.1 Contents
3.2
3.3
3.4
3.5
3.6
3.7
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
MC68HC908MR32 Control Board . . . . . . . . . . . . . . . . . . . . . .29
3-Phase AC BLDC High Voltage Power Stage. . . . . . . . . . . . .31
Optoisolation Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Motor-Brake Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Hardware Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
3.2 System Configuration
The application is designed to drive the 3-phase AC motor. It consists of
the following modules (see Figure 3-1):
• MC68HC908MR32 Control Board
• 3-phase AC/BLDC High Voltage Power Stage
• Optoisolation Board
• 3-phase AC Induction Motor
DRM019 — Rev 0
MOTOROLA
Designer Reference Manual
27
Hardware Design
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