Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Patent
1996-06-03
1998-06-23
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
330271, 330283, 330289, H03F 130, H03F 326
Patent
active
057709742
ABSTRACT:
The present invention solves the gain, noise figure, and distortion problems of prior art thermal compensation circuits by incorporating a temperature-compensating circuit in the feedback loop of a transistor amplifier arrangement. Using this method, the insertion loss is reduced as the gain of the amplifier varies proportionately to the temperature. This method has a negligible effect on the noise figure and distortion, and the incremental cost is much lower than the conventional circuits. Furthermore, the present invention can be used in both single-ended or push-pull dual amplifier configurations.
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Acosta Alfredo
Brickell John W.
Vogt Stephan W.
Gardner Kelly A.
Massaroni Kenneth M.
Mullins James B.
Scientific-Atlanta, Inc.
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