Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Patent
1990-08-20
1993-04-13
DeBoer, Todd E.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Load shunting by fault responsive means
361 91, 361 18, 320 59, H02H 320
Patent
active
052028119
ABSTRACT:
Disclosed is an electrical power system adapted to receiving power from a source of alternating current, typically a small alternator and supplying a direct potentially to a load. This power system contains protective circuits which control or shut off a portion or all of the electrical power system in response to abnormally high or low voltage conditions. The high voltage protection circuit short circuits the alternator in response to abnormally high load voltage. A second high voltage sensing circuit, locks out the main regulation and rectification circuit for a selected period of time after the over voltage sensing point is exceeded. The low voltage protection circuit abruptly reduce output to zero once the output voltage decreases to a minimum level. This voltage then remains at zero until the circuit is reset by an external signal.
REFERENCES:
patent: 4458195 (1984-07-01), Piteo
patent: 4791349 (1988-12-01), Minks
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