Clipping circuit, differential amplifying circuit, and amplifying circuit
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United States of America Patent
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Oct 14, 2014
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N/A
app pub date -
Dec 10, 2012
filing date -
Dec 16, 2011
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Abstract
A clipping circuit includes: a first input terminal which receives a first signal, a second input terminal which receives a second signal, and a first variable resistive element which has a control terminal electrically connected to the second input terminal and which has a threshold, wherein first and second ends of the first variable resistive element are connected to first input terminal and a reference voltage, respectively. The clipping circuit also includes a second variable resistive element which has a control terminal electrically connected to the first input terminal and which has a threshold, wherein first and second ends of the second variable resistive element are connected to a second input terminal and the reference voltage, respectively. In addition, a first bias applying unit applies a bias voltage lower than the threshold to the control terminal regarding the first variable resistive element, and a second bias applying unit applies a bias voltage lower than the threshold to the control terminal regarding the second variable resistive element.
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