Amplifiers – Signal feedback – Combined with control of bias voltage of signal amplifier
Patent
1976-06-04
1977-05-31
Rolinec, Rudolph V.
Amplifiers
Signal feedback
Combined with control of bias voltage of signal amplifier
330 13, 330 17, 330 69, H03F 345
Patent
active
040272729
ABSTRACT:
An amplifier includes a differential amplifier and a first collector follower amplifier connected to the output terminal of the differential amplifier. A second collector follower amplifier is provided, the input terminal of which is connected to the common impedance of the differential amplifier to receive one part of the voltage thereacross, and the output terminal of which is connected to the output terminal of the first collector follower amplifier so as to reduce the common mode gain of the differential amplifier.
REFERENCES:
patent: 3760288 (1973-09-01), Leonard
patent: 3904972 (1975-09-01), Seki
Dahl Lawrence J.
Rolinec Rudolph V.
Sony Corporation
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