Cascode amplifier

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9438175
APP PUB NO 20150084695A1
SERIAL NO

14487465

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In one embodiment, a cascode amplifier includes an amplifier circuit, a replica circuit, a bias circuit, and a feedback circuit. The amplifier circuit includes a first transistor and a second transistor. The second transistor is cascode-connected to the first transistor. The replica circuit includes a third transistor and a fourth transistor. The third transistor has a control terminal connected to a control terminal of the first transistor. The fourth transistor is cascode-connected to the third transistor. The bias circuit applies a bias voltage to a control terminal of the second transistor and a control terminal of the fourth transistor. The feedback circuit performs a feedback control of a voltage of the control terminal of the third transistor. The feedback circuit reduces the difference between a reference current and a current at a predetermined point of the replica circuit.

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First Claim

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Patent Owner(s)

  • KABUSHIKI KAISHA TOSHIBA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Onizuka, Kohei Shinagawa, JP 36 318

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