发明名称 Digital generation and control of variable phase-on motor energization
摘要 A control system for controlling a motor having a plurality of electromagnetic field windings adapted to be separately energized by switching circuitry to control rotation of a rotor in the motor. Digital circuitry generates a plurality of logic signals, one for each respective motor field winding to cause the switching circuitry to energize the field windings in a two phase on mode, a one phase on mode, or in one of a plurality of fractional phase on modes. A signal command source provides a plurality of digital signals to select or gate the desired phase on energization mode of the field windings in response to a feedback signal derived from detecting rotary movement of the rotor. Related methods of controlling a multi-phase motor with digitally generated variable phase modes are also disclosed.
申请公布号 US4282472(A) 申请公布日期 1981.08.04
申请号 US19790038922 申请日期 1979.05.14
申请人 QWINT SYSTEMS, INC. 发明人 MARTIN, DONALD P.
分类号 H02P8/14;(IPC1-7):G05B19/40 主分类号 H02P8/14
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