Three-pin integrated synchronous rectifier and a flyback...

Details Three-pin integrated synchronous rectifier and a flyback... Three-pin integrated synchronous rectifier and a flyback...

2011-02-15

2011-02-15

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S021150

Reexamination Certificate

active

07889521

ABSTRACT:
A three-pin integrated synchronous rectifier is the synchronous rectifier chip where the quantity of connection pins is the smallest possible quantity. The three-pin integrated synchronous rectifier uses a control pin to receive a control signal used as a power bias voltage and a synchronous pulse to make the synchronous rectifier chip operate normally. The control signal is obtained from the output pin of an auxiliary winding via a diode. The other pins are respectively the drain pin and the source pin of an internal power transistor and are connected with the output winding and the voltage output terminal for transmitting the power of the transformer to supply current for the loading.

REFERENCES:
patent: 6069804 (2000-05-01), Ingman et al.
patent: 6778417 (2004-08-01), Itakura et al.
patent: 6813166 (2004-11-01), Chang et al.
patent: 6961253 (2005-11-01), Cohen
patent: 6995991 (2006-02-01), Yang et al.
patent: 7408796 (2008-08-01), Soldano

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