Sensorless Speed Control of Brushless DC Motor using One Phase Terminal Voltage

한 상의 단자전압을 이용한 브러시리스 전동기의 센서리스 속도제어

  • Published : 2006.06.01

Abstract

This paper presents a sensorless speed control of Brushless DC motor using terminal voltage of one phase. Rotor position information is extracted by indirectly sensing the Back-EMF from only one of the three terminal voltages for a three phase BLDC motor. This is a advantage for the cost saving and size reduction. Also, it can be substituted for conventional Hall-IC or encoder applied to position control.

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