Circuits and methods for voltage sensing

Details Circuits and methods for voltage sensing Circuits and methods for voltage sensing

2008-02-28

2009-06-30

Tang, Minh N (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Cathode ray

C324S12300R, C324S126000, C315S308000

Reexamination Certificate

active

07554319

ABSTRACT:
A voltage sensing circuit includes a voltage divider and a voltage rectifier. The voltage divider divides a first output voltage on a first output voltage line to a first divided output voltage. The voltage divider comprises a first metal foil and a first capacitor. The first metal foil and the first output voltage line can form a first capacitive component. The first capacitive component is coupled in series with the first capacitor. The first capacitive component and the first capacitor can generate the first divided output voltage. The voltage rectifier is coupled to the voltage divider and can rectify the first divided output voltage to a sensing voltage indicative of the first output voltage.

REFERENCES:
patent: 2007/0252533 (2007-11-01), Ger et al.
patent: 2008/0080216 (2008-04-01), Ger et al.

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