Compound transistor circuitry

Details Compound transistor circuitry Compound transistor circuitry

1977-10-27

1979-01-30

Dahl, Lawrence J.

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

323 4, 330257, 330260, H03F 304

Patent

active

041375068

ABSTRACT:
A compound transistor all of the first conductivity type circuitry having a high input impedance as well as a high gain, comprises a first, a second and a third bipolar transistor, and a fourth bipolar transistor complementary to at least the first transistor, the second and third transistors having their emitters coupled together to a first terminal and having their bases connected together and further connected to the collector of the fourth transistor, the bases of the first and fourth transistors being connected in common to a second terminal, the emitter of the first transistor being connected to the collector of the second transistor, the collector of the first transistor and the emitter of the fourth transistor being connected together to a third terminal.

REFERENCES:
patent: 3714600 (1973-01-01), Kuiuk et al.

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