AMPLIFIER OUTPUT POWER LIMITING CIRCUITRY

An amplifier system having: an amplifier having a linear operating region where an output signal produced by the amplifier at the output terminal has a power level increasing proportionally with the increasing input signal power level up to a compression region of the amplifier where the output powe...

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Main Authors BETTENCOURT, John P, KAPER, Valery S
Format Patent
LanguageEnglish
French
German
Published 19.04.2023
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Abstract An amplifier system having: an amplifier having a linear operating region where an output signal produced by the amplifier at the output terminal has a power level increasing proportionally with the increasing input signal power level up to a compression region of the amplifier where the output power is inhibited from increasing with increasing input signal power; and a DC current limiting circuit, coupled between a DC power supply and the amplifier, to: supply DC current from the DC power supply that is equal to quiescent current to the amplifier from the DC power supply when the amplifier operates in the linear region; enable the amplifier to draw increasing DC current from the DC power supply above the quiescent current with increasing input signal power until the output signal power reaches the desired compression point level which is lower than that of a stand-alone amplifier without the DC current limiting circuit; and, then limits the current drawn by the amplifier from the DC power supply.
AbstractList An amplifier system having: an amplifier having a linear operating region where an output signal produced by the amplifier at the output terminal has a power level increasing proportionally with the increasing input signal power level up to a compression region of the amplifier where the output power is inhibited from increasing with increasing input signal power; and a DC current limiting circuit, coupled between a DC power supply and the amplifier, to: supply DC current from the DC power supply that is equal to quiescent current to the amplifier from the DC power supply when the amplifier operates in the linear region; enable the amplifier to draw increasing DC current from the DC power supply above the quiescent current with increasing input signal power until the output signal power reaches the desired compression point level which is lower than that of a stand-alone amplifier without the DC current limiting circuit; and, then limits the current drawn by the amplifier from the DC power supply.
Author KAPER, Valery S
BETTENCOURT, John P
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CIRCUIT DE LIMITATION DE COURANT DE SORTIE D'AMPLIFICATEUR
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SubjectTerms AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
Title AMPLIFIER OUTPUT POWER LIMITING CIRCUITRY
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