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THYRATRON_PROTECTION_IN_HIGH_VOLTAGE_SWITCH

2016-09-10 15:15  
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THYRATRON_PROTECTION_IN_HIGH_VOLTAGE_SWITCH
C1 is charged to some value up to 400 V, then discharged into load R5 by gas tube represented by S1. V2 acts as cathode follower to charge C1 as long as V1 does not conduct. When operation of S1 is desired, V2 is turned off by turning on V1 long enough for S1 to operate and recover, using square-wave input pulse. Circuit action prevents destruction of thyratron switch and load without sacrificing pulse rate. Tubes need separate filament transformers.-Voltage Controlled High Voltage Switch, Electronic Circuit Design Handbook, Mactier Pub. Corp., N.Y., 1965, p 233.