Brushless motor speed control

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4720663
SERIAL NO

06846397

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A brushless DC motor control circuit for efficiently controlling motor speed is described. A digital circuit for providing centered pulse turn-on during that period when the specific winding is capable of providing torque for the desired direction of rotation to the rotor is described. Each phase has its own timing circuit including an initial delay-time interval and an on-time interval. These time intervals are set to obtain desired motor speed and efficient motor operation.

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Patent Owner(s)

Patent OwnerAddress
LEAR CORPORATION EEDS AND INTERIORS21557 TELEGRAPH ROAD SOUTHFIELD MI 48033

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McCully, Dennis R Columbus, MS 1 21
Welch, David W Columbus, MS 10 218

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