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3-Phase BLDC Motor Control with Sensorless Back EMF Zero ...

Freescale SemiconductorApplication NoteAN1914 Rev. 1, 11/2005 Freescale Semiconductor, Inc., 2001, 2005. All rights BLDC Motor Control with Sensorless Back EMF Zero Crossing Detection Using 56F80x Design of 3-Phase BLDC Motor Control Application Based on the Software Development Kit Libor Prokop, Leos Chalupa1. IntroductionThis Application Note describes the design of a 3-Phase Sensorless BLDC Motor drive with Back-EMF Zero Crossing. It is based on Freescale s 56F80x family dedicated for Motor Control applications.

control applications. The concept of the application is th at of a speed-closed loop drive using Back-EMF Zero Crossing technique for position detection. It serves as an example of a sensorless BLDC motor control system using a Digital Signal Co ntroller (DSC) and SDK support. It also illustrates the usage of dedicated motor control on chip

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  Control, Position, Sensorless

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