Amplifiers – Signal feedback – Combined with control of bias voltage of signal amplifier
Patent
1985-02-11
1986-03-04
Mullins, James B.
Amplifiers
Signal feedback
Combined with control of bias voltage of signal amplifier
330 99, H03F 134
Patent
active
045742537
ABSTRACT:
Broadband control amplifier having a wide control range and comprising a differential amplifier in the negative feedback loop. An auxiliary coupling is provided in the feedback loop having a transfer factor which renders the open loop gain independent of the signal distribution in the differential amplifier. The control amplifier can, for example, be used as an input amplifier in a receiver for optical fibre systems, to compensate for the length and temperature-dependent attenuation of the optical link.
REFERENCES:
patent: 4219788 (1980-08-01), Cordell
Briody Thomas A.
Eason Leroy
Mullins James B.
Streeter William J.
U.S. Philips Corporation
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