Rectifier circuit and radio communication device
AssigneeKabushiki Kaisha Toshiba
InventorsToshiyuki Umeda, Shoji Ootaka
Life of this patent
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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.
Claims14
A rectifier circuit comprising:
- a bias circuit that outputs a first direct-current voltage and a second direct-current voltage, and includes
- a first switching unit that is connected to a predetermined voltage source,
- a first capacitor unit that holds voltages supplied through the first switching unit,
- a second switching unit that is connected to the first capacitor unit, operation of the second switching unit being complementary with operation of the first switching unit, and
- a second capacitor unit that holds voltages supplied through the second switching unit as the first and second direct-current voltages;
- a first MOS transistor that has a gate and a source, only the first direct-current voltage being applied between the gate and the source of the first MOS transistor;
- a second MOS transistor that has a gate, a source, and a drain connected to the source of the first MOS transistor, only the second direct-current voltage being applied between the gate and the source of the second MOS transistor;
- and
- 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.
Dependencies are inferred from the claim text.