Voltage detecting circuit

Details Voltage detecting circuit Voltage detecting circuit

2006-04-25

2006-04-25

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S078000, C327S085000, C327S143000

Reexamination Certificate

active

07034581

ABSTRACT:
A voltage detecting circuit that has a stable output even when a battery voltage is low includes first and second terminals connected across poles of a battery, a reference voltage generating circuit, and a comparator for comparing values of the reference voltage and voltage across the terminals. A first output circuit is connected between the first and second terminals to output a first output signal on the basis of the comparison result, a second output circuit outputs a second output signal that changes in value based on a voltage of the battery and on the basis of signals at the first and second terminals, and an output terminal outputs the first and second output signals.

REFERENCES:
patent: 5268595 (1993-12-01), Ohshima
patent: 6163183 (2000-12-01), Azimi et al.
patent: 2002/0140402 (2002-10-01), Sudo
patent: 64-11413 (1989-01-01), None

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