Circuit configuration for detecting undervoltage

Details Circuit configuration for detecting undervoltage Circuit configuration for detecting undervoltage

1995-08-24

1997-04-01

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361115, H02H 324

Patent

active

056172850

ABSTRACT:
A circuit configuration for undervoltage detection of a voltage source includes a reference voltage source being fed by the voltage source and having a first output, a second output, and a device for generating an enable signal at the second output only whenever a reference voltage has attained a stable value. A voltage divider divides a voltage furnished by the voltage source and supplies an output voltage. A comparator has a first input connected to the first output of the reference voltage source, a second input receiving the output voltage of the voltage divider, an output for supplying a detection signal, and a switching device being triggered by the enable signal for enabling the output of the comparator only after the enable signal has been generated.

REFERENCES:
patent: 3670246 (1972-06-01), Gately
patent: 4618780 (1986-10-01), Ikoma
patent: 4794277 (1988-12-01), Holland

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