Switching power supply

Details Switching power supply Switching power supply

2005-11-29

2005-11-29

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

Integrated circuit

C363S097000

Reexamination Certificate

active

06970367

ABSTRACT:
A switching power supply device of the invention includes: a switching circuit for interrupting direct current to generate a pulse voltage; a transformer including a primary winding, a secondary winding, and a core for magnetically coupling the primary winding and the secondary winding; a multi-layer wiring board having wiring lines constituting the primary winding and the secondary winding; a rectifier circuit for rectifying an alternating current; a smoothing circuit for suppressing ripple; and a control circuit for controlling an output voltage from the smoothing circuit. The multi-layer wiring board is provided with at least the switching circuit and the rectifier circuit and is arranged on a main wiring board, and the control circuit is arranged on the main wiring board.

REFERENCES:
patent: 5355301 (1994-10-01), Saito et al.
patent: 5544038 (1996-08-01), Fisher et al.
patent: 5973923 (1999-10-01), Jitaru
patent: 6687143 (2004-02-01), Yamamoto et al.
patent: 6891739 (2005-05-01), Nadd et al.
patent: 6-325949 (1994-11-01), None

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