Resonance power supply circuit of variable capacity type

Details Resonance power supply circuit of variable capacity type Resonance power supply circuit of variable capacity type

1998-11-27

2000-03-14

Riley, Shawn

Electric power conversion systems

Current conversion

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

363 97, H02M 3335

Patent

active

060381418

ABSTRACT:
A current resonance power supply circuit resonates the primary winding L61 of the switching transformer 64 and the current resonance capacitor C2I by turning on and off the switching elements 61 and 62 and obtains high frequency output from the secondary winding L62 of the switching transformer 64 according to such resonance. With a capacitor whose capacity increases as the operation frequency of the switching elements 61 and 62 decreases used as the capacitor C2I above, the out-of-resonance phenomenon hardly occurs upon a sharp drop of the AC power voltage or a quick increase of the load.

REFERENCES:
patent: 5490052 (1996-02-01), Yoshida et al.
patent: 5598324 (1997-01-01), Imamura et al.
patent: 5748458 (1998-05-01), Ochiai
patent: 5805432 (1998-09-01), Zaitsu et al.

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