Electrically held power relay circuit with reduced power dissipa

Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...

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361190, H01H 4732

Patent

active

043262341

ABSTRACT:
A relay coil circuit with a switching regulator for coil current to maintain, after closing, a sufficient holding current by the inductance of the coil acting as a current source without supply current.

REFERENCES:
patent: 3896346 (1975-07-01), Ule
patent: 3909681 (1975-09-01), Campari et al.
patent: 4052660 (1977-10-01), Shuey

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