Power supply apparatus provided with overcurrent protection...

Details Power supply apparatus provided with overcurrent protection... Power supply apparatus provided with overcurrent protection...

2006-07-25

2006-07-25

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S277000

Reexamination Certificate

active

07081742

ABSTRACT:
A series regulator for outputting a regulated voltage and a booster circuit of a charge pump type for outputting an output voltage by boosting the regulated voltage are connected in series. The series regulator is controlled so that the output voltage is maintained constant. A main circuit current of the series regulator is subject to current limitation. An excess signal commensurate of an excess of a current indicator value over a current reference value is generated. A voltage control signal is reduced in level in accordance with the excess signal.

REFERENCES:
patent: 4401936 (1983-08-01), van Opijnen
patent: 4560918 (1985-12-01), Callen
patent: 4899098 (1990-02-01), Gariboldi
patent: 6710584 (2004-03-01), Kuroiwa et al.
patent: 6972547 (2005-12-01), Murakami
patent: 2003-173211 (2003-06-01), None

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