Method and apparatus for quiet fan speed control

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8193744
APP PUB NO 20100109597A1
SERIAL NO

12607788

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for controlling the speed of an AC motor by means of an AC motor speed control having a plurality of capacitors operable to be selectively coupled in parallel electrical connection, the parallel coupled capacitors operable to be coupled in series electrical connection with the AC motor, the method comprising charging the capacitors up to substantially the same predetermined voltage prior to combining the capacitors in parallel electrical connection.

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Patent Owner(s)

  • LUTRON ELECTRONICS CO., INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dobbins, Aaron Macungie, US 21 2137
Steiner, James P Royersford, US 145 4864
Wu, Chen Ming Emmaus, US 22 1791

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