Title :
Reducing thyratron losses in CVL modulator
Author_Institution :
NRCN, Beer-Sheva, Israel
Abstract :
By addition of a snubber magnetic assist and a by-pass diode the anode dissipation of the thyratron in a CVL modulator has been reduced from 5.6 kW to 560 W. It is argued that the origin of the excessive 5 kW is de-ionization loss. `Radar experience´ indicates that long life is expected from such a circuit, even for a small inexpensive thyratron. It is shown that RMS current by itself cannot be used as a figure of merit for modulator circuits. Finally, it is noted that there is no advantage in using hollow anode thyratrons for CVL modulators
Keywords :
losses; modulators; overvoltage protection; pulsed power technology; thyratrons; 5.6 kW to 560 W; CVL modulator; RMS current; anode dissipation; by-pass diode; de-ionization loss; snubber magnetic assist; thyratron losses; Anodes; Costs; Diodes; Electrons; Magnetic modulators; Pulse modulation; Resistors; Snubbers; Thyratrons; Voltage;
Conference_Titel :
Power Modulator Symposium, 1990., IEEE Conference Record of the 1990 Nineteenth
Conference_Location :
San Diego, CA
DOI :
10.1109/MODSYM.1990.201010
