Power Amplifier, and Method of the Same
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United States of America Patent
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Issued Date -
Feb 4, 2016
app pub date -
Aug 15, 2014
filing date -
Aug 1, 2014
priority date (Note) -
Abandoned
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Abstract
A power amplifier comprises a first inductor, a second inductor, a capacitor, a first MOS transistor, a second MOS transistor and a current source. The first and the second inductors are both connected to a first power supply. The first inductor and the second inductor form a differential inductor. The capacitor is connected to the first inductor at a first terminal of and to the second inductor at a second terminal. A drain of the first MOS transistor is connected to the first terminal of the capacitor. A drain of the second MOS transistor is connected to the second terminal of the capacitor. A first terminal of the current source is connected to sources of both the first and the second MOS transistors. A second terminal of the current source is connected to a second power supply. The current source outputs a variable current based on a bias voltage input.
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