Amplifiers – With semiconductor amplifying device – Including signal feedback means
Patent
1978-11-01
1980-11-04
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including signal feedback means
330297, 330302, 330310, H03F 3191
Patent
active
042322723
ABSTRACT:
An amplifier having a high gain in a selected frequency band, e.g. for the preferential amplification of a pilot oscillation, consists of a plurality of cascaded stages each comprising an active component, a coupling network and a negative-feedback network. The coupling and feedback networks are alternately connected in a series circuit between a signal input and a signal output, each of these networks (with the possible exception of those associated with the first stage) comprising a damped parallel-resonant circuit with an inductive branch forming a low-ohmic path for direct current. Each active component has an input electrode connected through a stabilizing resistor to the junction of the associated coupling and feedback networks, its output electrode being tied to the downstream end of the corresponding feedback network. Operating current is supplied to the active component of the last stages through a choke connected directly to its output electrode, the output electrodes of the preceding stage receiving such operating current from the choke via some of the series-connected networks.
REFERENCES:
patent: 3717820 (1973-02-01), Garcia et al.
CSELT - Centro Studi e Laboratori Telecomunicazioni S.P.A.
Mullins James B.
Ross Karl F.
LandOfFree
Feedback-stabilized multistage frequency-selective amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Feedback-stabilized multistage frequency-selective amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feedback-stabilized multistage frequency-selective amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1647554