Series pass voltage regulator with overcurrent protection

Details Series pass voltage regulator with overcurrent protection Series pass voltage regulator with overcurrent protection

1979-02-21

1981-03-03

Shoop, William M.

Electricity: power supply or regulation systems

Output level responsive

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

323280, 361 18, G05F 158

Patent

active

042543720

ABSTRACT:
A series pass voltage regulator compares the output voltage with a reference voltage and adjusts the base bias of a PNP series pass transistor coupled between an unregulated voltage source and a load to maintain the output voltage at a predetermined constant value. A current sensing resistor senses the base current of the PNP series pass transistor and limits the base current to a predetermined value indicative of a maximum allowable load current.

REFERENCES:
patent: 3445751 (1969-05-01), Easter
patent: 3546566 (1970-12-01), Marzolf
patent: 3629622 (1971-12-01), Denenberg, Jr.
patent: 3736469 (1973-05-01), Baugher et al.
patent: 3845405 (1974-10-01), Leidich
patent: 3924158 (1975-12-01), Farnsworth
patent: 4176309 (1979-11-01), Schulz et al.

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