Protection circuit for power supply systems

Details Protection circuit for power supply systems Protection circuit for power supply systems

1991-03-29

1993-08-24

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 78, H02H 324

Patent

active

052394395

ABSTRACT:
A power protection circuit for detecting the level of output voltage source from a power supply, comprises a first detector for detecting a first output state of the power supply, a second detector for detecting a second output state of the power supply, an abnormality detector for recognizing the detecting states of the first and second detection means and detecting an abnormality state from the outputs of the power supply and generating an abnormality signal responsive to said abnormality state, an initial-ineffective circuit for making said abnormality signal ineffective when source voltage is supplied at the first stage, a driver for receiving said abnormality signal from said abnormality detecting means and generating continuous abnormality signal once said abnormality state is occurred.

REFERENCES:
patent: 3573554 (1971-04-01), Theobald
patent: 4479125 (1984-10-01), Mori
patent: 4503479 (1985-03-01), Otsuka et al.
patent: 4951171 (1990-08-01), Tran et al.
patent: 4999730 (1991-03-01), Pickard

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