Rectifier circuit and radio communication device
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United States of America Patent
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Feb 15, 2011
Grant Date -
Dec 25, 2008
app pub date -
Jul 29, 2008
filing date -
Jun 17, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A rectifier circuit includes a bias circuit that outputs a first direct-current voltage and a second direct-current voltage; a first MOS transistor that has a gate and a source; and a second MOS transistor that has a gate, a source, and a drain connected to the source of the first MOS transistor. Only the first direct-current voltage is applied between the gate and the source of the first MOS transistor, and only the second direct-current voltage is applied between the gate and the source of the second MOS transistor. The rectifier circuit also includes a coupling capacitor that has a first end which is connected to the source of the first MOS transistor, and a second end to which an alternating-current signal is input.
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