AN1857 Freescale Semiconductor / Motorola, AN1857 Datasheet

Manufacturer Part Number

AN1857

Description

A 3-Phase ac Induction Motor Control System Based on the MC68HC908MR32

Manufacturer

Freescale Semiconductor / Motorola

Datasheet

1.AN1857.pdf (52 pages)

Motorola Semiconductor Application Note

A 3-Phase ac Induction Motor Control System

Based on the MC68HC908MR32

By: Bill Lucas and Ken Berringer

Software Written By:

Introduction

Motorola Microcontroller Division

Austin, Texas

Radim Visinka, Petr Lidak, Pavel Kania, and Petr Stekl

Roznov System Application Laboratory

Roznov, Czech Republic

The use of microcontroller technology has enabled the design of energy-

efficient and cost-effective motor control systems. Using

microcontrollers (MCU) with specialized pulse-width modulator

interfaces and integrated protection architecture allows a reasonable

approach to reduce total system cost and increase overall performance.

This application note describes such a system based on the Motorola

MC68HC908MR32 (MR32) motor control specific MCU, optoisolation,

and power electronics.

A discussion of the MR32 MCU, hardware design of the control board,

optoisolation interface, power electronics, and the required software to

control a 3-phase induction motor is presented.

Freescale Semiconductor, Inc.

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