Electric power conversion systems – Current conversion – Including an a.c.-d.c.-a.c. converter
Patent
1997-12-22
2000-03-14
Sterrett, Jeffrey
Electric power conversion systems
Current conversion
Including an a.c.-d.c.-a.c. converter
363 48, H02M 5458
Patent
active
060381493
ABSTRACT:
A power supply device and a discharge lamp lighting device which are capable of reducing high harmonic elements and improving a crest factor. A full-wave rectifying circuit is connected to a commercial AC power supply. A first capacitor, a diode and second capacitor, having a smaller capacitance than the first capacitor, are connected to the full-wave rectifying circuit. A partially smoothed circuit consisting of a charge capacitor, an inductor and a diode is connected to the second capacitor. A parallel resonance circuit and a collector-emitter of a transistor are connected to the partially smoothed circuit. The parallel resonance circuit consists of a primary winding of an inverter transformer and a first resonance capacitor. A second resonance capacitor is connected between the emitter and the collector of the transistor. Filaments of a fluorescent lamp are connected to a secondary winding of the inverter transformer. A starting capacitor is connected to the filaments.
REFERENCES:
patent: 4564897 (1986-01-01), Okamoto et al.
patent: 4849950 (1989-07-01), Sugiura et al.
patent: 5251119 (1993-10-01), Maehara
patent: 5301095 (1994-04-01), Teramoto et al.
patent: 5331534 (1994-07-01), Suzuki et al.
patent: 5410466 (1995-04-01), Maehara
patent: 5517403 (1996-05-01), Maehara
patent: 5563777 (1996-10-01), Miki et al.
patent: 5740022 (1998-04-01), Abe
patent: 5764496 (1998-06-01), Sato et al.
patent: 5875107 (1999-02-01), Nagai et al.
Hiraoka Toshiyuki
Kubota Hiroshi
Sugiyama Masahiro
Takeda Takafumi
Yamamoto Kazuyuki
Kabushiki Kaisha TEC
Sterrett Jeffrey
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