A.C. power supply apparatus

Details A.C. power supply apparatus A.C. power supply apparatus

1991-11-25

1993-03-30

Stephan, Steven L.

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

307 66, H02M 545

Patent

active

051989700

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.

REFERENCES:
patent: 4465943 (1984-08-01), Risberg
patent: 4707774 (1987-11-01), Kajita
patent: 4719550 (1988-01-01), Powell et al.
T. Kawabata, "Classification and Characteristics of Inverters," Electric Review, pp. 987-992, Nov. 1981.
K. Harada et al., "Small UPS Using Phase Control", Converence Proceedings of Intelec/87, pp. 516-520, 1987.

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