Title :
Analysis of two-phase spindle motor driven by sensorless BLDC mode
Author :
Chao Bi ; Quan Jiang ; Taile Wei
Author_Institution :
Data Storage Inst.
Abstract :
The performance of two-phase spindle motor is analyzed, which is driven by constant voltage sensorless BLDC mode. In the motoring operation, the rotor positions are estimated by back EMF detecting and a digital filter is used to realize BLDC sensorless control. The two-phase BLDC motor is more robust in the starting and low speed operation, and can realize accurate speed control. Both the simulations and experiments show that the proposed drive mode is effective in driving spindle motors
Keywords :
DC motor drives; brushless DC motors; disc drives; electric motors; hard discs; HDD; back EMF; brushless DC motors; constant voltage sensorless BLDC mode; digital filter; drive mode; hard disc drive; motoring operation; rotor positions; speed control; two-phase spindle motor; Brushless DC motors; Digital signal processing; Inverters; Memory; Performance analysis; Permanent magnet motors; Phase detection; Rotors; Sensorless control; Voltage;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2004. APMRC 2004
Conference_Location :
Seoul
Print_ISBN :
0-7803-8717-1
DOI :
10.1109/APMRC.2004.1521968
