Stepping motor drive method and apparatus

Details Stepping motor drive method and apparatus Stepping motor drive method and apparatus

H - Electricity

02

P

318/20

H02P 8/00 (2006.01) H02P 8/16 (2006.01)

Patent

CA 1111904

Abstract of the Disclosure A driver circuit for controlling the excitation of a multi-phase stepping motor is described which includes a switching power supply providing two average power output levels. The switching power supply provides a high voltage at the initiation of each excitation of a motor winding and a modu- lated voltage having an average at the normal operating level. The driver according to the invention eliminates need for dual power supplies and damper resistors.

302998

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