Electricity: motive power systems – Having plural – diverse or diversely controlled sources – Different voltages
Patent
1998-12-08
2000-04-11
Ro, Bentsu
Electricity: motive power systems
Having plural, diverse or diversely controlled sources
Different voltages
318801, 318810, B60L 100, B60H 132
Patent
active
06049185&
ABSTRACT:
A power circuit of an air conditioner for electric vehicles includes a high voltage power source, a drive circuit for driving a compressor motor, and a capacitor connected between a positive side coupling and a negative side coupling to the high voltage power source. The power circuit comprises a diode provided in the positive side coupling and a switching element provided in the negative side coupling. The capacitor is charged by the pulsed operation of the switching element which is controlled by an operation control device. The capacitor may be quickly charged in a stable condition without burdening the devices in the power circuit. Consequently, the air conditioner may be quickly started.
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patent: 4482854 (1984-11-01), Kawada et al.
patent: 4539821 (1985-09-01), Tamura
patent: 4879639 (1989-11-01), Tsukahara
patent: 4884185 (1989-11-01), Hubert
patent: 5127085 (1992-06-01), Becker et al.
patent: 5678761 (1997-10-01), Ikeda
patent: 5883484 (1999-03-01), Akao
Japanese Patent Office, Patent Abstracts of Japan, Publication No. 07241002, Sep. 12, 1995.
Ro Bentsu
Sanden Corporation
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