Title :
Design of rotor position detecting circuit with band-pass filters in sensorless BLDC motor drives
Author :
Qiang, Li ; Yongjuan, Cao ; Ruixia, Wang
Author_Institution :
Shool of Autom., Nanjing Univ. of Sci. & Technol., Nanjing
Abstract :
The structure and characteristic of the band-pass filter are analyzed, and parameters of components are calculated, and a Back-EMF zero-cross detection circuit for BLDC motor sensorless control is designed in this paper. A simplified scheme of the circuit is proposed. The simulation results and the experimental results of the filter and the circuit are presented.
Keywords :
band-pass filters; brushless DC motors; machine control; motor drives; power filters; BLDC motor sensorless control; back-EMF zero-cross detection circuit; band-pass filters; permanent magnet brushless DC motor; rotor position detecting circuit; Band pass filters; Brushless DC motors; Circuits; Equations; Frequency; Low pass filters; Pulse width modulation; Rotors; Sensorless control; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
