发明名称 Drive circuitry for electric motor
摘要 A drive circuit for an inductive load such as a synchronous motor responds to an analog signal representing a desired load current and an actual load current and selectively applies first and second potentials to the load. The circuit includes transistor switches for selectively connecting the load to the potentials in desired polarity and diode circuits for maintaining current flow through the load when the transistor switches are opened, thereby decaying the load current.
申请公布号 US4306181(A) 申请公布日期 1981.12.15
申请号 US19790067364 申请日期 1979.08.17
申请人 COMPUMOTION CORPORATION 发明人 WELBURN, ROSS
分类号 H02P8/12;H02P25/02;(IPC1-7):G05B19/40 主分类号 H02P8/12
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