A.C. power supply apparatus

U.S. Patent Number: 5198970

Abstract: An a.c. power supply apparatus, such as an uninterruptible power supply apparatus or a fuel cell power generation apparatus, has first, second and third converting devices connected in star configuration with a common bus, whereby the number of power converting devices is reduced and a compact, light weight and efficient power supply apparatus is realized.

Inventors: Kawabata; Takao (Hyogo, JP), Sashida; Nobuo (Hyogo, JP)

Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP)

Application Number: 07/798,833

Issued: 1993-03-30

Expired: 2005-03-30

Classes: 363/37 ; 307/66

Field of search: 363/37,98,132 307/46,66,67

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