Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Patent
1979-03-26
1981-05-19
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
330156, H03F 330
Patent
active
042687969
ABSTRACT:
An a-c linear amplifier with two push-pull-connected output transistors includes an ancillary transistor which, during saturation of one of the output transistors and the simultaneous cutoff of a controlled transistor driving these output transistors through a set of pilot transistors, conducts to maintain the base potential of this controlled transistor at its conduction threshold for preventing a distortion of the end of the flattened peak of the corresponding half-cycle of the output voltage. The ancillary transistor has one of its input leads maintained at a fixed biasing potential and the other of its input leads connected to a point of output-dependent variable voltage that allows its conduction during the flattened peak only.
REFERENCES:
Bernays, "Extend Audio-Amplifier Performance", Electronic Design 6, Mar. 14, 1968, pp. 182-188.
Mullins James B.
Ross Karl F.
SGS-ATES Componenti Elettronici S.p.A.
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