Circuit arrangement for protection against thermal overload of t

Details Circuit arrangement for protection against thermal overload of t Circuit arrangement for protection against thermal overload of t

1986-11-17

1988-05-17

Mullins, James B.

Amplifiers

With traveling wave-type tube

330207P, H03F 358

Patent

active

047453699

ABSTRACT:
A circuit arrangement protects against thermal overload as a consequence of impermissible operating conditions in traveling wave tube amplifiers having multi-collector traveling wave tubes. At least one measuring device is provided for measuring the collector current at at least one collector of the traveling wave tube and, in response to measuring a prescribed current threshold, the cathode current of the traveling wave tube is regulated back by way of a control device or is disconnected by way of a control logic circuit.

REFERENCES:
patent: 3890545 (1975-06-01), Rosen
Scerch, "High Power Solid State Modulator for Coherent Agile Microwave Amplifier", 11th Modulator Symposium, New York, USA, 18-19, Sep. 1973, pp. 84-88.

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