DC power source apparatus

Details DC power source apparatus DC power source apparatus

2006-12-05

2006-12-05

Han, Jessica (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S021010, C363S039000, C336S200000

Reexamination Certificate

active

07145784

ABSTRACT:
A DC power source apparatus has a DC power source for supplying a DC voltage, a transformer, and a switching element connected to a primary winding of the transformer. The switching element carries out ON/OFF operations to convert the DC voltage from the DC power source into high-frequency power, which is transferred to a secondary winding of the transformer and is converted into a DC output voltage. The primary winding of the transformer consists of a first primary winding made of a plurality of winding layers and a second primary winding made of a plurality of winding layers. The first and second primary windings are connected in parallel. The first primary winding is arranged on an inner side of the secondary winding, and the second primary winding is arranged on an outer side of the secondary winding. A terminal of a winding layer farthest from the secondary winding among the winding layers of each of the first and second primary windings is connected to the switching element.

REFERENCES:
patent: 6222742 (2001-04-01), Schlecht
patent: 6980074 (2005-12-01), Jitaru
patent: 09-17657 (1997-01-01), None

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