Gate voltage control circuit of a power amplifier

Gate voltage control circuit of a power amplifier

A gate voltage control circuit of a power amplifier for reducing the power dissipation by improving the efficiency at an average output power and for enhancing the linearity of the power amplifier at a maximum output power, the gate voltage control circuit comprising an input terminal for receiving...

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Hauptverfasser: LEE, JAE-JIN, CHANG-SEOK, MAENG, SEONG-JAE, YUN, KWANG-JUN
Format: Patent
Sprache:eng
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
ELECTRICITY
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creator LEE
JAE-JIN
LEE
CHANG-SEOK
MAENG
SEONG-JAE
YUN
KWANG-JUN
description A gate voltage control circuit of a power amplifier for reducing the power dissipation by improving the efficiency at an average output power and for enhancing the linearity of the power amplifier at a maximum output power, the gate voltage control circuit comprising an input terminal for receiving an output power signal from a power amplifier; an output power detecting circuit for detecting the output power signal and for converting the detected output power signal to a DC voltage signal; a voltage dividing circuit comprising at least two resistors for dividing a voltage difference between the DC voltage signal and a negative voltage in a ratio of resistances of the resistors; and an output terminal for supplying the divided voltage as a gate voltage control signal.
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subjects AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
ELECTRICITY
title Gate voltage control circuit of a power amplifier
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