Control device of fan motor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9369069
APP PUB NO 20150084564A1
SERIAL NO

14490152

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A control device of a fan motor includes: a voltage sensor that detects a voltage applied to a fan motor; a switching portion that selectively connects to each of coils of the fan motor and a rectifier circuit; and a switching control portion that reduces a duty ratio of a driving pulse applied to the switching portion if the voltage detected by the voltage sensor exceeds a threshold.

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Patent Owner(s)

Patent OwnerAddress
SANYO DENKI CO LTD33-1 MINAMIOTSUKA 3-CHOME TOSHIMA-KU TOKYO 170-8451

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kaise, Takashi Tokyo, JP 2 51
Toda, Takahisa Tokyo, JP 12 93
Watanabe, Jiro Tokyo, JP 47 735

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