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1. (WO2010112922) CONTROL SYSTEM FOR AN ELECTRIC MACHINE

Pub. No.:    WO/2010/112922    International Application No.:    PCT/GB2010/050558
Publication Date: Fri Oct 08 01:59:59 CEST 2010 International Filing Date: Thu Apr 01 01:59:59 CEST 2010
IPC: H02P 6/00
H02P 6/08
H02P 6/14
A47L 9/28
Applicants: DYSON TECHNOLOGY LIMITED
CELIK, Tuncay
Inventors: CELIK, Tuncay
Title: CONTROL SYSTEM FOR AN ELECTRIC MACHINE
Abstract:
A control system for a single- phase permanent magnet electric machine, the control system comprising a position sensor and a drive controller. The drive controller generates one or more control signals for exciting a winding of the electric machine in response to edges of a signal output by the position sensor. The times at which the control signals are generated by the drive controller are corrected by a position-sensor offset that is fixed over an operating speed range of the electric machine.