Switching power supply

Details Switching power supply Switching power supply

2006-09-26

2006-09-26

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S021120, C363S131000

Reexamination Certificate

active

07113411

ABSTRACT:
A switching power supply apparatus includes first and second switch circuits (S1) and (S2) including switch devices (Q1) and (Q2), diodes (D1) and (D2), and capacitors (Cds1) and (Cds2), and a transformer (T). A first inductor (Lr) is connected in series with a primary winding (Lp) of the transformer (T), and a second inductor (Li) is arranged so that a voltage of a third capacitor (Ca) is applied during an on-period of the first switch circuit (S1). A diode (Di) preventing a reverse current from flowing in the second inductor (Li), and a capacitor (Ci) that is charged by excitation energy stored in the second inductor (Li) and that applies a voltage to the primary winding (Lp) during the on-period of the first switch circuit (S1) are further provided. A capacitor (Cr) is further provided so as to define a closed loop together with the inductor (Lr), the primary winding (Lp), and the second switch circuit (S2).

REFERENCES:
patent: 5862043 (1999-01-01), Youn et al.
patent: 6018467 (2000-01-01), Majid et al.
patent: 6469913 (2002-10-01), Hosotani et al.
patent: 6717827 (2004-04-01), Ota
patent: 04-021358 (1992-01-01), None
patent: 06-169569 (1994-06-01), None
patent: 07-075334 (1995-03-01), None
patent: 07-264860 (1995-10-01), None
patent: 11-187664 (1999-07-01), None
patent: 2003-224972 (2003-08-01), None

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