Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Patent
1982-02-25
1984-04-10
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
330255, 330270, H03F 330
Patent
active
044424094
ABSTRACT:
A push-pull amplifier having like conductivity output transistors is driven by a phase-splitter transistor amplifier. The collector load of the phase-splitter includes a diode bridge for establishing the amplifier idling current. One arm of the bridge incorporates the pull-up output transistor base-emitter junction-the current conducted therein being accurately determined by bridge parameters.
REFERENCES:
patent: 3454889 (1969-07-01), Petrie
patent: 3728638 (1973-04-01), Seki et al.
M. J. Teague, "Get PNP Class-B Stage Efficiency", 3-15-67, Electronic Design 6, pp. 238-240.
Herrmann E. P.
Mullins James B.
RCA Corporation
Tripoli J. S.
Whitacre E. M.
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