Biasing stage for an amplifier

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United States of America Patent

PATENT NO 7619476
APP PUB NO 20060208800A1
SERIAL NO

11378029

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Abstract

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An amplifier biasing stage includes a transistor that provides a biasing signal for a complementary pair of field-effect transistors included in an output stage of an amplifier. The amplifier biasing stage also includes one resistive element connected to an emitter of the transistor, another resistive element connected to a base of the transistor, and still another resistive element connected to a collector of the transistor. The respective resistances of the resistive elements are selected to substantially match a voltage provided by the amplifier biasing stage to a gate-to-source voltage of the complementary pair of field-effect transistors. The resistances of the resistive elements are also selected to substantially match a temperature coefficient of the amplifier biasing stage to a temperature coefficient of the complimentary pair of field-effect transistors.

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Patent Owner(s)

Patent OwnerAddress
APEX MICROTECHNOLOGY INC5980 NORTH SHANNON ROAD TUCSON AS 85741

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harman, Jefferson H Tucson , US 9 91

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