Noise suppression in PWM-driven DC motor

United States of America Patent

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Nov 17, 1998
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N/A
app pub date
Aug 2, 1995
filing date
Aug 2, 1995

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Expired

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Abstract

A system for reducing Radio Frequency Interference (RFI) produced by motors which are powered by Pulse Width Modulation (PWM). It is believed that the PWM induces radiation at the PWM frequency and harmonics. The invention shields power cables which carry the PWM pulsed current, and provides capacitive shunting of one of the cables to ground.

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Patent Owner(s)

Patent Owner	Address
ITT AUTOMOTIVE ELECTRICAL SYSTEMS INC	3000 UNIVERSITY DRIVE AUBURN HILLS MI 48321

International Classification(s)

H02P:CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATO....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Abbas, Mohamed	Dayton, OH	22	208
Elliot, James	Dayton, OH	1	12
Holmes, Thomas W	Tipp City, OH	3	44
Suriano, John R	Kettering, OH	19	194

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Noise suppression in PWM-driven DC motor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

08510430

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PATENT NO	5838877
SERIAL NO	08510430
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08510430

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