Source voltage drop detecting circuit

Details Source voltage drop detecting circuit Source voltage drop detecting circuit

1980-04-09

1982-10-26

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

Specific condition

455115, 455226, G08B 2100, G01R 1916

Patent

active

043564810

ABSTRACT:
A voltage drop detection circuit provides an accurate indication of battery voltage in an apparatus subject to large fluctuations in load current regardless of the battery internal resistance. The detection circuit periodically induces an increase in load current so as to reproduce the maximum load current drawn by the apparatus, and the resulting battery terminal voltage is compared to a fixed reference. The detection circuit finds particular utility in apparatus designed to use a variety of battery types.

REFERENCES:
patent: 3877001 (1975-04-01), Bogut et al.
patent: 4160246 (1979-07-01), Martin et al.

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