Capacitance measurement system and methods

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United States of America Patent

PATENT NO 9500686
SERIAL NO

13191806

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Abstract

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A first capacitor and a second capacitor are charged until voltage at the second capacitor settles to a settling voltage. While charging, the first capacitor is alternately switched between a current source and ground. When the settling voltage is reached, charging of the first capacitor is halted. The second capacitor continues to be charged until voltage at the second capacitor reaches a reference voltage. The amount of time it takes for the settling voltage to reach the reference voltage corresponds to a measure of capacitance on the first capacitor.

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Patent Owner(s)

  • CYPRESS SEMICONDUCTOR CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Best, Andrew Stanford, US 18 150
Bokma, Louis San Jose, US 6 288
Fuller, Thomas Middleton Rutledge Seattle, US 4 4
Lee, Mark Edmonds, US 69 840
Wilson, Cole Everett, US 17 237

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