Anti crow bar current interrupter for microwave tube transmitter

Details Anti crow bar current interrupter for microwave tube transmitter Anti crow bar current interrupter for microwave tube transmitter

1991-06-28

1992-11-10

Williams, Howard L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 57, 361 87, 361 93, H02H 308

Patent

active

051629658

ABSTRACT:
A high-speed high-voltage FET current interrupter which opens the cathode circuit of microwave tubes when internal tube arcing occurs. By removing the detrimental fault current which causes degradation to the microwave tube body and grid, the longevity of the microwave tube and the pulse energy storage capacitor is greatly increased over those transmitters which use dissipative crow bar circuits. Even more important is that the transmitter reset time after an arc occurs is orders of magnitude faster than transmitters using crow bars or primary power interrupters when arcing occurs--an important feature when engaged in a "dog fight".

REFERENCES:
patent: 3737713 (1973-06-01), Kalish
patent: 3980929 (1976-09-01), Bresnick
patent: 4618837 (1986-10-01), Matsuura
patent: 4648015 (1987-03-01), Davis et al.
patent: 4687970 (1987-08-01), Musslyn et al.
patent: 4893070 (1990-01-01), Milberger et al.
patent: 4897617 (1990-01-01), Milberger et al.

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