Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Patent
1992-02-06
1993-08-10
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
330267, 330276, H03F 326
Patent
active
052352889
ABSTRACT:
An amplifier stage for use with low-resistance AC voltage sources has first and second complimentary transistors, each having a control terminal, a current input terminal and a current output terminal. The transistors are connected together at a first junction point, a current terminal of the second complementary transistor being connected at the first junction point to a corresponding current terminal of the first complimentary transistor. The respective other corresponding current terminals of the transistors are connected to respective opposite poles of a direct current supply, so that the first transistor, the second transistor, and the direct current supply form a series connection providing a common quiescent current to the transistors. The transistors are each provided with a respective separate direct current operating voltage at a respective control terminal. The transistors are connected to receive an input AC voltage at respective corresponding current input terminals, thereby receiving the input AC voltage in parallel.
REFERENCES:
patent: 2782267 (1957-02-01), Beck
IBM Technical Disclosure Bulletin, vol. 31, No. 10, Mar. 1989; "High Performance Totem-Pole Drive", pp. 304-306.
Rinderle Heinz
Sapotta Hans
Mullins James B.
Telefunken electronic GmbH
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