Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Patent
1989-08-10
1991-12-17
DeBoer, Todd E.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
361 18, 361 58, 307 66, 320 13, 320 40, H02H 324, H02J 704
Patent
active
050738372
ABSTRACT:
There is disclosed a low voltage protection circuit for preventing overdischarging in a back-up battery. The circuit includes: switching a device which supplies voltage to the load and being connected in series between the battery and load; a charging device which charges the battery by being connected in parallel to the switching device; a first control device which determines the different operation-starting and operation-terminating voltage of the battery and, at the same time, controls the "on" and "off" of the switching device by being connected in parallel to the input terminal of the battery; and a second control device which generates hysteresis voltage between the operation-starting and operation-terminating voltage by supplying the voltage which determines the operation-terminating voltage to the first control device.
REFERENCES:
patent: 4209710 (1980-06-01), Quarton
patent: 4225792 (1980-09-01), Fahey
patent: 4488057 (1984-11-01), Clarke
patent: 4704542 (1987-11-01), Hwang
Bushnell Robert E.
Deboer Todd E.
Samsung Electronics Co,. Ltd.
LandOfFree
Low voltage protection circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low voltage protection circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low voltage protection circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-838452