Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Patent
1993-08-31
1996-08-13
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
348707, H03F 326, H04N 514
Patent
active
055460488
ABSTRACT:
A push-pull circuit formed of transistors drives a peaking capacitor of an amplifier circuit to enhance charge and discharge of the peaking capacitor. This reduces a bias current, resulting in reduction of a power consumption. A feedback impedance is connected to an emitter of a transistor to feed an output signal back to an input of the amplifier circuit as a current signal in a wide frequency range. Thus, a high-power, wideband amplifier is accomplished.
REFERENCES:
patent: 4446443 (1984-05-01), Johnson
patent: 4476442 (1984-10-01), Iwamatsu
patent: 4577160 (1986-03-01), Lettvin
patent: 4598316 (1986-07-01), Rogers, III
patent: 4628279 (1986-12-01), Nelson
patent: 4879522 (1989-11-01), Mattfeld
patent: 5235288 (1993-08-01), Rinderle
The Sylvania Technologies 4/57 vol. X, No. 2 p. 36.
RCA Review 1966, Jun. pp. 199-211.
Kitou Kouji
Ohsawa Michitaka
Sano Yuji
Tsuruga Sadao
Hitachi , Ltd.
Mottola Steven
Nguyen Tiep H.
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