Title :
2.5 MW average-power crossatron switch operation in a square-wave modulator circuit
Author :
Schumacher, R.W. ; Watkins, R.M. ; Litte, R. ; Limpaecher, R.
Author_Institution :
Hughes Res. Lab., Malibu, CA, USA
Abstract :
The demonstrated average-power-modulating capability of the XTRON-4b crossatron switch has been advanced to 2.5 MW at average current. Tests are described in which the switch was integrated into a simple square-wave, resistive-load modulator circuit consisting of a 10 MW power supply, a capacitor bank, and a water-tank load. The switch operated successfully at 140 A peak current, 32.2 kV open-circuit voltage, and 77.2 A average current with 1.2 ms pulsewidth and 500 Hz pulse repetition frequency (PRF) (60% duty). This advanced performance represents 2.5 MW of high-speed power-modulating capability. At higher voltages, 500 kW was modulated at 50 kV and 1 kHz PRF, and 250 kW was modulated at 75 kV and 100 Hz PRF
Keywords :
modulators; pulsed power technology; switches; 1 kHz; 1.2 ms; 10 MW; 100 Hz; 140 A; 2.5 MW; 250 kW; 32.2 kV; 50 kV; 500 Hz; 500 kW; 75 kV; 77.2 A; XTRON-4b crossatron switch; average-power crossatron switch operation; capacitor bank; power supply; pulse repetition frequency; resistive-load modulator circuit; square-wave modulator circuit; water-tank load; Circuit testing; Frequency; Power capacitors; Power supplies; Pulsed power supplies; Space vector pulse width modulation; Switched capacitor circuits; Switches; Switching circuits; Voltage;
Conference_Titel :
Power Modulator Symposium, 1988. IEEE Conference Record of the 1988 Eighteenth
Conference_Location :
Hilton Head, SC
DOI :
10.1109/MODSYM.1988.26261
