Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Patent
1977-02-08
1978-05-02
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
330267, H03F 3183
Patent
active
040877604
ABSTRACT:
A transistor amplifier circuit comprising a pair of complementary transistors having collectors connected to each other through a resistor and to an output terminal through respective capacitors, emitters connected to a positive and a negative supply voltage respectively and bases connected to the collectors thereof through respective resistors and to an input terminal through respective capacitors. In this amplifier circuit, the emitter circuits of the paired-transistors include no resistors and accordingly no by-pass capacitors, thus eliminating thermal noise sources and also voltage drop due to such resistors. Therefore, this amplifier circuit can be operated at a markedly reduced S/N ratio with a very low supply voltage, giving a high utility of voltage. Such amplifier circuit can have a very simplified structure.
REFERENCES:
patent: 3537023 (1970-10-01), Myer
Mullins James B.
Nippon Gakki Seizo Kabushiki Kaisha
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