Polarity and overload protective circuit for electric consumers

Details Polarity and overload protective circuit for electric consumers Polarity and overload protective circuit for electric consumers

1983-08-12

1985-05-28

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

361 77, 361 55, 361 56, 361105, 320 25, 320 33, 320 34, 320 53, 307 10BP, 307127, 340636, H02H 318, H02H 320

Patent

active

045204195

ABSTRACT:
The protective circuit against overpoling and overloading of an electronic consumer includes a combination of a zener diode connected parallel to the consumer and a parallel connection of a fuse and a conventional diode connected in series with one power supply terminal. Preferably an additional fuse is connected in series between the power supply and the first-mentioned fuse. In the case of a polarity reversal, a fuse burns out, but after restoring normal operational conditions the protective circuit permits operation of the consumer.

REFERENCES:
patent: 3312889 (1967-04-01), Gold
patent: 3484653 (1969-12-01), Takaoka
patent: 3809993 (1974-05-01), Wheeler
patent: 4296398 (1981-10-01), McGalliard
patent: 4393432 (1983-07-01), Neuhaus et al.
IBM Technical Disclosure Bulletin, vol. 4, No. 9, Feb. 1962, "Protective Circuit".
IBM Tech. Discl. Bull., vol. 19, No. 4, Sep. 1976, "Monolithic Integrated Circuit Fuse Link".

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