Switching power supply

Details Switching power supply Switching power supply

1995-09-27

1997-12-23

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 16, H02M 3335

Patent

active

057012377

ABSTRACT:
A switching power supply comprising an inductance device having one electrode connected to an output terminal of a rectifier, the rectifier rectifying an alternating current voltage, a switching device connected between another electrode of the inductance device and a ground voltage source, a capacitive device having one electrode connected to the other electrode of the inductance device, and a transformer having a primary coil connected to the other electrode of the capacitive device. The inductance device may be a choke coil. The switching device may be a field effect transistor. The capacitive device may be a capacitor. The transformer may include one or two secondary coils.

REFERENCES:
patent: 4257087 (1981-03-01), Cuk
patent: 4734839 (1988-03-01), Barthold
patent: 4857822 (1989-08-01), Tabisz et al.
patent: 5442534 (1995-08-01), Cuk et al.
patent: 5528482 (1996-06-01), Rozman
Nikkei Electronics ASIA/Aug. 1994; Technology Trend; "Harmonics Fighters Pursue Choke-Coil, One-Converter Power Supplies"; Katsumi Yamashita; pp. 44-47.

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