Switching power supply circuit

Details Switching power supply circuit Switching power supply circuit

2007-07-10

2007-07-10

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S097000

Reexamination Certificate

active

11545040

ABSTRACT:
In a switching power supply circuit including a primary side rectifying and smoothing circuit, a switching element, a converter transformer, a secondary side rectifying and smoothing circuit, and a switching element controlling section, a first primary side series resonant circuit is formed by a choke coil and a primary side series resonant capacitor, a second primary side series resonant circuit is formed by a leakage inductance occurring in a primary winding and the primary side series resonant capacitor, and a secondary side series resonant circuit is formed by a leakage inductance occurring in a secondary winding and a secondary side series resonant capacitor.

REFERENCES:
patent: 6831846 (2004-12-01), Yasumura
patent: 6839245 (2005-01-01), Yasumura
patent: 7170761 (2007-01-01), Yasumura
patent: 2000-134925 (2000-05-01), None

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