Overvoltage protection control circuits and overvoltage...

Details Overvoltage protection control circuits and overvoltage... Overvoltage protection control circuits and overvoltage...

2011-08-02

2011-08-02

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S086000, C361S088000

Reexamination Certificate

active

07990671

ABSTRACT:
An overvoltage protection control circuit includes a voltage conversion circuit, a voltage comparison circuit, and a switching circuit. The voltage conversion circuit generates a first voltage and a second voltage based on a power supply voltage. The voltage comparison circuit generates a control signal based on a comparison between the first voltage and the second voltage. The switching circuit determines whether to apply the power supply voltage to a chip in response to the control signal. The overvoltage protection control circuit is formed inside the chip.

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Chinese Office Action dated Oct. 19, 2010 in corresponding Chinese Application No. 200710092205.7, with English translation.

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