Short circuit protection of regulated power supplies

Details Short circuit protection of regulated power supplies Short circuit protection of regulated power supplies

1978-05-22

1979-07-17

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

307317A, H02H 324

Patent

active

041617606

ABSTRACT:
A Schottky diode, whose forward voltage is 0.4 volts is connected between e load and one input of the sense amplifier, which has a minimum operating voltage of 0.6 volts. When the load becomes short circuited or drops to a very low resistance, the Schottky diode conducts to shut down the sense amplifier, which cuts off the series pass transistor. When the load resistance rises to a predetermined value, the Schottky diode becomes reverse biased, permitting the regulator to return to its normal regulation operation.

REFERENCES:
patent: 3031608 (1962-04-01), Von Eschen et al.
patent: 3886410 (1975-05-01), Seer, Jr.
patent: 3924158 (1975-12-01), Farnsworth

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