Title :
Solid-state Marx modulator development
Author :
Dale, G.E. ; Kirbie, H.C. ; Doss, J.D. ; Serrano, M.A.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
A solid-state Marx modulator is under development to supply regulated voltage and current to a high-power magnetron. A primary goal of this design is for the modulator to have low volume and low weight. The modulator is required to provide 5-μs-wide rectangular pulses of approximately 45 kV and 145 A at a repetition frequency of 120 Hz. The Marx is composed of 12 circuit boards, with 4 IGBT switched Marx stages per board, for a total of 48 stages. The IGBT Marx switches can be closed and then opened at full-load current, allowing the production of a rectangular pulse from a Marx generator. Single boards and three-board stacks have been tested into a resistive load at operational voltages and currents. Results of the resistive load test are shown.
Keywords :
magnetrons; modulators; power semiconductor switches; pulse generators; pulsed power supplies; 120 Hz; 5 mus; IGBT Marx switch; Marx generator; high-power magnetron; rectangular pulse; regulated voltage supply; resistive load test; solid-state Marx modulator; Frequency; Insulated gate bipolar transistors; Magnetic modulators; Printed circuits; Pulse circuits; Pulse modulation; Solid state circuits; Switches; Switching circuits; Voltage;
Conference_Titel :
Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop. Conference Record of the Twenty-Sixth International
Print_ISBN :
0-7803-8586-1
DOI :
10.1109/MODSYM.2004.1433622
