Low noise power amplifier circuit

Details Low noise power amplifier circuit Low noise power amplifier circuit

1983-02-04

1985-02-19

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including combined diverse-type semiconductor device

330264, 330269, 330311, 330156, H03F 316, H03F 326

Patent

active

045008493

ABSTRACT:
A low noise power amplifier in which a buffer including a field effect transistor coupled in a source follower configuration is interposed between a voltage amplifying stage and a power amplifying stage, the latter utilizing a single-ended push-pull emitter follower configuration. A cascode transistor is cascade connected with the field effect transistor. A constant current source is provided for supplying current to the source of the field effect transistor. Field effect transistor buffers are preferably provided between the voltage amplifying stage and both positive and negative amplifying portions of the power amplifying stage.

REFERENCES:
patent: 4390852 (1983-06-01), Addis

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