Voltage detector for battery operated device

Details Voltage detector for battery operated device Voltage detector for battery operated device

1996-09-12

1998-09-29

Brown, Glenn W.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324433, G01R 3136, G01N 27416

Patent

active

058149953

ABSTRACT:
A voltage detector is described herein which eliminates an entire operational amplifier or comparator from conventional voltage detectors. In one embodiment of such a voltage detector, a band gap reference generator is connected so as not to incorporate any feedback mechanism and where an off balance in the band gap reference generator is used to detect whether an input voltage falls below a threshold voltage. By eliminating the feedback path in the band gap reference generator, a comparator is eliminated. Other types of voltage detectors which provide a highly stable operation over a wide range of temperatures are described.

REFERENCES:
patent: 5140269 (1992-08-01), Champlin
patent: 5426371 (1995-06-01), Salley et al.

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