A novel twelve-step sensorless drive scheme for a brushless DC motor

Chao Min Wang*, Shyh Jier Wang, Shir-Kuan Lin, Hsing Yu Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

This paper presents a novel twelve-step sensorless drive scheme for a three-phase brushless DC motor, which combines the traditional six-step 120° and 180° conduction modes and has varied active angular period. The proposed scheme is implemented on a single FPGA-chip. Several experiments for various active angle periods from 124° to 168.75° are undertaken. The experimental results show that the torque constant is larger for the larger active angular period.

Original languageEnglish
Pages (from-to)2555-2557
Number of pages3
JournalIEEE Transactions on Magnetics
Volume43
Issue number6
DOIs
StatePublished - 1 Jun 2007

Keywords

  • Back EMF
  • Brushless DC motor
  • Sensorless drive
  • Zero-crossing

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