Motor drive filter damping

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United States of America Patent

PATENT NO 9923469
SERIAL NO

15149384

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Abstract

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Disclosed examples include methods, power converters and damping circuits to control damping of an input filter circuit, in which a low-voltage secondary winding is wound around a common core with a primary winding connected between an AC input and a rectifier input of the converter, where the secondary winding is coupled in a series circuit with a damping resistor and a switch, and a controller selectively closes the switch with a controlled on-time at system power up and/or in response to detection of oscillation or transients in the power converter.

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Patent Owner(s)

  • ROCKWELL AUTOMATION TECHNOLOGIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Zhongyuan Cambridge, CA 36 716
Wei, Lixiang Mequon, US 104 1318
Xiao, Yuan Kitchener, CA 48 998
Zargari, Navid R Cambridge, CA 33 678

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