Circuit and method for reducing inrush current of phase converter motor

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United States of America Patent

PATENT NO 9484844
SERIAL NO

15131293

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Abstract

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A method and circuit for starting a three-phase motor in a manner that reduces inrush current normally associated with starting an AC motor. The method uses the circuit to start the three phase motor gradually with three phase alternating current having relatively low frequency and gradually increasing the frequency up to or above the motor operating frequency over a period of time and then switching in a single phase alternating current supply to power the three phase motor.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Floreancig, Glen Phoenix, US 3 6

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