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2 Hall-ICs를 이용한 저가형 PM Brushless DC Motor 속도 제어
김덕규(D.K.Kim),윤용호(Y.H.Yon),우무선(M.S.Woo),원충연(C.Y.Won),최유영(Y.Y.Choe) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.11
Generally, PM BLDC drive system IS necessary that the three Hall-ICs evenly be distributed around the stator circumference and encoder be installed in case of the 3 phase motor. So, the Hall-ICs are set up in this motor to detect the main flux from the rotor, and the output signal from Hall-ICs is used to drive a power transistor to control the winding current. However, instead of using three Hall-ICs and encoder, we used only two Hail-ICs for the permanent magnet rotor position and for the speed feedback signals, and also for a micro controller of 16-bit type (80C196KC) with the 3 phase PM BLDC whose six stator and two rotor designed. Two Hall-IC Hc and H_B are placed on the endplate at 120 degree intervals, and with these elements, we estimated information of the others phase in sequence through a rotating rotor.