Electric power conversion systems – Current conversion – Including an a.c.-d.c.-a.c. converter
Patent
1995-04-28
1998-07-07
Wong, Peter S.
Electric power conversion systems
Current conversion
Including an a.c.-d.c.-a.c. converter
315209R, H02M 5458, H05B 3702
Patent
active
057778612
ABSTRACT:
A rectification device rectifies an input voltage from an AC power source. First and second switching devices are arranged between a pair of output terminals of the rectification device and alternately turned on/off. A series circuit of a first capacitor and an inductor is arranged between the two terminals of one of the first and second switching devices so as to perform a smoothing operation with respect to the frequency of an output from the rectification device. A second capacitor serves to form a resonance circuit in cooperation with the inductor in accordance with the ON/OFF operations of the first and second switching devices. The capacitance of the second capacitor is smaller than that of the first capacitor.
REFERENCES:
patent: 5063490 (1991-11-01), Maehara et al.
patent: 5097181 (1992-03-01), Kakitani
patent: 5166579 (1992-11-01), Kawabata et al.
patent: 5274540 (1993-12-01), Maehara
patent: 5410466 (1995-04-01), Maehara
patent: 5459651 (1995-10-01), Maehara et al.
Aoike Nanjou
Kakitani Tsutomu
Kitamura Noriyuki
Nagasaki Fumihiko
Shimizu Keiichi
Patel Rajnikant B.
Toshiba Lighting & Technology Corporation
Wong Peter S.
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