High frequency amplifier

Details High frequency amplifier High frequency amplifier

1986-10-29

1988-06-14

Wan, Gene

Amplifiers

With control of power supply or bias voltage

330118, H03F 328

Patent

active

047514728

ABSTRACT:
The invention relates to a high frequency amplifier for coupling a load with a tetrode which is used as the amplifier tube and which is provided with a regulating circuit with a set point adjuster for the anode voltage. The regulating circuit can also be influenced by a control variable as the set point feedforward which is dependent on the tetrode screen grid current and which is used for automatically matching the anode voltage to the operating conditions of the load. For the power dissipation of the screen grid and anode of the tetrode, a regulating circuit can be provided with a limitation of the controlling high frequency power dependent on the screen grid current.

REFERENCES:
patent: 2928051 (1960-03-01), Young, Jr.
patent: 3365675 (1968-01-01), Gaddy et al.
patent: 3566236 (1971-02-01), Johnson
W. Schminke, "High-Power Amplifiers for Plasma Heating," (8011 Brown Boveri Review 71 (1984) Jun./Jul. No. 6/7, Baden, Switzerland, pp. 272-276.

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