Motor control system and method for implementing a direct on-off communication control routine
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United States of America Patent
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Mar 20, 2018
Grant Date -
Mar 15, 2018
app pub date -
Sep 9, 2016
filing date -
Sep 9, 2016
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Abstract
A high-efficiency motor control system and method is presented for controlling an electric motor. The system can feature a multi-phase inverter having a logic control device and associated control circuity, a plurality of floating charge pumps and pump circuitry, a multi-phase bridge having a plurality of power switching devices and a bootstrap capacitor circuit having a floating ground. The floating charge pumps feature grounds electrically coupled to motor phase leads. The bootstrap circuit can feature a floating ground, with a floating voltage being carried across the bootstrap circuit and delivered to the switching devices to produce an indefinite on-time for the switching devices for switching the high-side of a power supply to a load.
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