Application Description - Motorola M68HC08 Manual

3-Phase BLDC Low Voltage Reference Design

4.2 Application Description

Designer Reference Manual
26
Freescale Semiconductor, Inc.
– DC-Bus under-voltage fault protection (software)
– DC-Bus over-voltage fault protection (software)
– Loss of Hall sensors (software)
• Power Supply Accommodation
– Fuse on power line input
– Transient Voltage Suppressor 60 Volts
– Line choke (limited to 8 Amps)
The drive is illustrated in
incorporates:
• Single Board BLDC Drive with MC68HC908QY4 "Nitron"
microcontroller
• BLDC Motor with Hall sensors
The MCU MC68HC908QY4 runs the main control algorithm. According
to the user interface and feedback signals it generates 3-phase PWM
output signals for a 3-phase inverter.
3-Phase BLDC Low Voltage Reference Design
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Figure 4-1. System Concept. The system
DRM046 — Rev 0
MOTOROLA