Short-circuiting rectifier for a switched-mode power supply

Details Short-circuiting rectifier for a switched-mode power supply Short-circuiting rectifier for a switched-mode power supply

2006-08-15

2006-08-15

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S021140, C363S053000, C363S089000

Reexamination Certificate

active

07092260

ABSTRACT:
A control circuit for controlling the output voltage of a primary-controlled switched mode power supply. The switched mode power supply includes a primary-side switch and a transformer with a primary winding, a secondary winding and a secondary-side auxiliary winding. The control circuit is connected to the auxiliary winding and a voltage tapping point between the secondary winding and the auxiliary winding. The control circuit includes a secondary-side switch and an RC element. The secondary-side switch short-circuits the connection between the output terminal and the voltage tapping point and the RC element provides positive and negative control pulses having a predefined time constant.

REFERENCES:
patent: 5708571 (1998-01-01), Shinada
patent: 6961256 (2005-11-01), Yang
patent: 100 18 229 (2001-10-01), None
patent: 519789 (2003-02-01), None
patent: WO 99/57799 (1999-11-01), None

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