Voltage detector device and methods thereof

Details Voltage detector device and methods thereof Voltage detector device and methods thereof

2008-12-19

2010-11-23

Zweizig, Jeffrey S (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S074000

Reexamination Certificate

active

07839189

ABSTRACT:
A voltage detector device is disclosed that includes a coarse-range voltage detector and a fine-range voltage detector. The fine-range voltage detector is configured to remain inactive, so that it consumes a relatively small amount of power, while a monitored voltage is outside a first specified range. In response to determining that the monitored voltage is within the first specified range, the coarse-range voltage detector activates the fine-range voltage detector so that it can monitor the voltage. In response to the fine-voltage monitor determining the voltage falls within a second specified range, the fine-range voltage detector provides a signal to a functional module of an electronic device so that the functional module can provide a defined response, such as executing an interrupt routine.

REFERENCES:
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patent: 5619165 (1997-04-01), Fournel et al.
patent: 5642063 (1997-06-01), Lehikoinen
patent: 5903767 (1999-05-01), Little
patent: 5920182 (1999-07-01), Migliavacca
patent: 6559629 (2003-05-01), Fernald
patent: 6873193 (2005-03-01), Kinoshita et al.

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