Inverter device and air conditioner using inverter device

Details Inverter device and air conditioner using inverter device Inverter device and air conditioner using inverter device

2003-12-09

2009-08-18

Norman, Marc E (Department: 3744)

Refrigeration

Automatic control

Refrigeration producer

C318S803000, C363S040000

Reexamination Certificate

active

07574873

ABSTRACT:
A current sensor for detecting a power supply current is commonly used for detecting a current of a stator winding to detect a rotational position of a magnet rotor, so that a sinusoidal driving is realized without adding two current sensors for detection of a phase current, and also a phase shift circuit and a comparator needed in the conventional 120-degree current feeding are not required, and the number of components can be reduced. Therefore, an inverter device with a low noise and low vibration, having a small size, light weight and high reliability is obtained.

REFERENCES:
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patent: 6396225 (2002-05-01), Wakui et al.
patent: 6523361 (2003-02-01), Higashiyama
patent: 6564576 (2003-05-01), Shibuya
patent: 2004/0095090 (2004-05-01), Nukushina
patent: 2-9728 (1990-01-01), None
patent: 5-157287 (1993-06-01), None
patent: 2002-291284 (2002-10-01), None
International Search Report corresponding to application No. PCT/JP03/15709 dated Mar. 30, 2004.

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