High voltage, high frequency amplifier circuit

Details High voltage, high frequency amplifier circuit High voltage, high frequency amplifier circuit

1984-04-27

1986-05-20

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including field effect transistor

330269, 330295, 330296, 330297, H03F 326, H03F 368

Patent

active

045904367

ABSTRACT:
High voltage, high frequency amplifier employing power transistors. The amplifier provides parallel ac signal amplification paths through each transistor and a single dc power path through the transistors in series. In one embodiment two FET's have their gate electrodes connected to an input terminal and their drain electrodes connected to an output terminal so as to provide two parallel ac amplifying paths while blocking dc current flow. The drain electrode of the first FET is connected through an RF choke to a source of dc operating potential, and its source electrode is connected through an RF choke to the drain electrode of the second FET. The source electrode of the second FET is connected to ground through a zener diode. A single dc conductive path is thus provided between the source of operating potential and ground through the two FET's in series.

REFERENCES:
patent: 4342967 (1982-08-01), Regan et al.

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