Temperature compensated voltage regulator integrated with...

Details Temperature compensated voltage regulator integrated with... Temperature compensated voltage regulator integrated with...

2007-12-04

2007-12-04

Mottola, Steven J. (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

Reexamination Certificate

active

11195886

ABSTRACT:
A voltage regulator integrated with a monolithic microwave integrated circuit (MMIC) power amplifier that supplies a regulated bias current to the MMIC power amplifier that is compensated for temperature and voltage supply variations. The regulator circuit includes HBT transistors for current mirrors and a voltage regulator where a base-emitter voltage drop compensates for a similar base emitter drop in the current mirrors. The regulator circuit is designed to maintain constant the bias voltage and mirror currents with changes in Vcc and temperature. The compensated constant bias current to the MMIC power amplifier maintains uniform operating parameters for the power amplifier.

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patent: 6716677 (2004-04-01), Ammar
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patent: 2004/0232992 (2004-11-01), Kuriyama

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