Electronic protection circuit

Details Electronic protection circuit Electronic protection circuit

1977-06-03

1979-01-16

Goldberg, Gerald

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 91, 361 55, H02H 320

Patent

active

041352238

ABSTRACT:
A protection circuit for producing one or more triggers in the presence of a monitored overvoltage condition employing photodiode networks for sensing the voltage overload, phototransistors responding to the photodiode outputs and operating gated semiconductors, which, in turn, discharge capacitors for trigger production. Separate networks are provided for each ac polarity operation. Monitoring may be with respect to supply voltage, power supply output voltage or one or more independent voltages.

REFERENCES:
patent: 3353066 (1967-11-01), De Souza
patent: 3553530 (1971-01-01), Gregson
patent: 3614531 (1971-10-01), Oswald
patent: 3729651 (1973-04-01), Fricker et al.
patent: 3816809 (1974-06-01), Kuster

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