Transistor amplifier circuits

Details Transistor amplifier circuits Transistor amplifier circuits

1978-11-15

1980-12-23

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330300, H03F 345

Patent

active

042413141

ABSTRACT:
In a transistor amplifier circuit of the type wherein two pairs of circuits are used each including a source follower type field effect transistor in the input stage and a bipolar type transistor in the succeeding stage and wherein the paired bipolar transistors constitute a differential amplifier, a plurality of constant current sources are connected such that the sum of the currents flowing through respective transistors will be constant for the purpose of driving the field effect transistors with small voltage in an active region.

REFERENCES:
patent: 3959733 (1976-05-01), Solomon et al.

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