Current resonance type switching power source

Details Current resonance type switching power source Current resonance type switching power source

1995-09-26

1997-06-17

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 21, 363 97, H02M 3338

Patent

active

056403100

ABSTRACT:
A current resonance type switching power circuit includes a rectifying circuit for rectifying commercial power, a smoothing circuit having a choke coil and a smoothing capacitor for smoothing the output of the rectifying circuit, a switching circuit unit for rendering intermittent the voltage output from the smoothing circuit, and a resonance circuit which includes a primary winding of an insulation transformer and a resonance capacitor and is supplied with a switching output of the switching circuit unit, wherein the resonance circuit is connected to a line between the rectifying circuit and the smoothing circuit so that the resonance output thereof is superposed on the choke coil.

REFERENCES:
patent: 4881014 (1989-11-01), Okochi
patent: 5171949 (1992-12-01), Fujishima et al.
patent: 5216585 (1993-06-01), Yasumura
patent: 5301095 (1994-04-01), Teramoto et al.
patent: 5321235 (1994-06-01), Makino et al.
patent: 5490052 (1996-02-01), Yoshida et al.

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