Motorola M68HC08 Manual page 14

Introduction
Designer Reference Manual
14
Freescale Semiconductor, Inc.
The concept of the application is a speed-closed loop BLDC drive using
a Hall position sensor. It serves as a reference design of a BLDC motor
control system for a low voltage fan application. The power stage is
designed for 48V DC line voltage and 400W output power. The
application is based on the low-cost MC68HC908QY4 "Nitron"
microcontroller. The design is focused on minimal cost and maximal
component integration for low cost applications.
This Application Note includes the basic motor theory, system design
concept, hardware and software design, hardware schematics, and s/w
listing. The design can be used as a reference design for developing
customer specific applications.
Introduction
For More Information On This Product,
Go to: www.freescale.com
DRM046 — Rev 0
MOTOROLA