SWITCHED-CAPACITOR CIRCUIT
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United States of America Patent
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Issued Date -
Jul 20, 2017
app pub date -
Jan 13, 2017
filing date -
Jan 15, 2016
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Abstract
A switched-capacitor circuit is provided in the present disclosure. The switched-capacitor circuit includes a first capacitor, a first switch, an amplifier circuit, a second switch, and a second capacitor. The first capacitor includes a first end and a second end. The first switch is coupled between an input end and the first end of the first capacitor. The amplifier circuit includes a first input end, a second input end and an output end. The second switch is coupled between the second end of the first capacitor and the first input end of the amplifier circuit. The second capacitor is coupled between the first capacitor and a ground end. Wherein in a first cycle, the first switch is turned on and the second switch is turned off. And in a second cycle, the first switch is turned off and the second switch is turned on.
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