Use of cooling fan in adjustable speed drives

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9000707
APP PUB NO 20140103851A1
SERIAL NO

13652695

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Apparatuses and methods are described for implementing adjustable speed drives. For instance, an apparatus may comprise an inverter circuit configured to drive a multi-phase electrical load, the inverter configured to be powered by first and second direct-current (DC) bus lines, a fan drive circuit configured to be powered by the first and second DC bus lines, a fan configured to be controlled by the fan drive circuit and having a plurality of windings coupled together at an electrical node, a first capacitor having a first terminal coupled to the first DC bus line and a second terminal coupled to the electrical node, and a second capacitor having a first terminal coupled to the second DC bus lines and a second terminal coupled to the electrical node.

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Patent Owner(s)

  • TOSHIBA INTERNATIONAL CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arefeen, Mohammed Houston, US 4 47
Rayner, Mark Houston, US 6 56

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