Apparatus to control direction of rotation of a brushless motor as a function of power polarity
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United States of America Patent
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-
Apr 5, 1988
Grant Date -
N/A
app pub date -
Jun 26, 1987
filing date -
Jun 26, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for use with a multi-phase brushless DC motor which is driven by signals from a motor controller/driver device, in which power supplied to the motor controller/driver device is routed through a bridge rectifier circuit so that the proper polarity of voltage is supplied to the motor controller/driver device, and also including a circuit connected between a power lead to the motor controller/driver device and input terminal of the bridge rectifier circuit so that a forward/reverse control signal is generated and can be applied to the motor controller/driver to control the direction of rotation of the motor as a function of the polarity of the power supplied to the bridge rectifier circuit.
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