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An effective method to obtain commutation positions in BLDC drive mode

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Abstract

The widely adopted drive method for the spindle motors with sinusoidal back-EMF in hard disk drive is to inject current into two phases and use the third phase to detect the rotor position. The commutation position to switch phases is normally 30 electrical degrees after the zero crossing points (ZCPs) of the silent phase back-EMF. To minimize the current ripple and thus the torque ripple, the commutation positions should be accurate and less prone to ZCP jitters. In this paper, an effective method based on the flux-linkage increment (FLI) is presented to realize accurate and robust commutation position detection. This method can greatly reduce the commutation position jitter even with obvious ZCP error. Experimental results show that the FLI method work well over a large speed range.

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References

  • Becerra RC, Jahns TM, Ehsani M (1991) Four-quadrant sensorless brushless ECM drive. In: IEEE applied power electronics conference and exposition, pp 202–209

  • Cameron SW, Phoenix A (1993) Method and apparatus for operating polyphase DC motors, granted to SGS Thomson Microelectronics. US Patent 5,221,881, June 22, 1993

  • Iizuka K et al (1985) Microcomputer control for sensorless brushless motor. IEEE Trans Ind Appl IA-21(3):595–601

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Authors and Affiliations

  1. Data Storage Institute, 5 Engineering Drive 1, Singapore, 117608, Singapore

    Song Lin, Chao Bi & Quan Jiang

Authors
  1. Song Lin
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  2. Chao Bi
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  3. Quan Jiang
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Correspondence to Song Lin.

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Lin, S., Bi, C. & Jiang, Q. An effective method to obtain commutation positions in BLDC drive mode. Microsyst Technol 17, 347–350 (2011). https://doi.org/10.1007/s00542-011-1265-3

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  • DOI: https://doi.org/10.1007/s00542-011-1265-3

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