Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takashi Soga0
Date of Patent
December 26, 2023
0Patent Application Number
169135850
Date Filed
June 26, 2020
0Patent Citations
Patent Primary Examiner
CPC Code
Patent abstract
A power amplifier circuit includes an amplifier transistor that amplifies an input signal, a resistance element coupled in series with the base of the amplifier transistor, a bias transistor that supplies a bias current from the emitter or the source of the bias transistor to the base of the amplifier transistor through the resistance element, and a feedback circuit that changes a base or gate voltage of the bias transistor to follow a change in the bias current supplied to the base of the amplifier transistor.
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