Electrical load protection device

Details Electrical load protection device Electrical load protection device

1983-11-07

1986-04-22

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 22, 361 33, 361187, H02H 320, H02H 3247

Patent

active

045846235

ABSTRACT:
Electronic circuitry senses over-voltage and under-voltage within narrow threshold limits, and voltage interruption, in the energization circuit of a sensitive load, such as a refrigeration compressor motor load, to protect against overheating damage and burn-out. Setting to a nominal operating line voltage is provided for to obviate readjustment to the threshold voltages of a window comparator utilized to sense over-voltage and under-voltage.

REFERENCES:
patent: 3149224 (1964-09-01), Horne et al.
patent: 3341748 (1967-09-01), Kammiller
patent: 3590325 (1971-06-01), McMillen
patent: 3657603 (1972-04-01), Adams
patent: 3800198 (1974-03-01), Graf et al.
patent: 4502287 (1985-03-01), Hare et al.
"One Chip Guards Against Overvoltage, Line Loss, and Brownout"--Hopkins et al., Electronic Design, 11/81, pp. 248 and 250.

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