Thermally matched current limit circuit

Details Thermally matched current limit circuit Thermally matched current limit circuit

1994-09-12

1995-06-27

Stephan, Steven L.

Electricity: power supply or regulation systems

Output level responsive

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

361101, 323907, G05F 316, H02H 300

Patent

active

054282870

ABSTRACT:
An overcurrent limit circuit in which the output transistor and current sense transistor share a common collector and common base. A reference voltage is compared with a voltage derived from a current sense resistor. The circuit limits the current to the base of the output transistor in response to the reference voltage threshold being reached at the current sense resistor. A Vbe comparator comprised of two transistors may be used with a first bias current to both transistors and a second bias current to one of the two transistors.

REFERENCES:
patent: 3792316 (1974-12-01), Bondini et al.
patent: 3845405 (1974-10-01), Leidich
patent: 3924158 (1975-12-01), Farnsworth
patent: 4021701 (1977-05-01), Davies
patent: 4287439 (1981-09-01), Leuschner
patent: 4321648 (1982-03-01), Kaplan
patent: 4330757 (1982-05-01), Fukaya et al.
patent: 4380706 (1983-04-01), Wrathall
patent: 4703390 (1987-10-01), Fay et al.
patent: 4750079 (1988-06-01), Fay et al.
patent: 4779062 (1988-10-01), Scheraga
patent: 4870533 (1989-09-01), Bahlmann
patent: 5103159 (1992-04-01), Breugnot et al.
patent: 5184061 (1993-02-01), Lee et al.
patent: 5237481 (1993-08-01), Soo et al.
patent: 5239256 (1993-08-01), Yoshida
1990 Linear DataBook, 5A and 2.5A High Efficiency Switching Regulators, pp. 5-36-5-49.

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