Title :
Solid-state LTD module using MOSFETs
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
It is proposed that linear transformer driver (LTD) concept can be applied to compact, repetitive pulsed-power generation. For experimental demonstration, a table-top LTD module has been constructed by using power MOSFETs and film capacitors. It consists of 24 basic circuits and a magnetic core, contained in a cavity case having a diameter of 33 cm and a height of 1 cm. All MOSFETs can be turned on and off synchronously, controlled by a single optic fiber. This LTD module has been tested with operation voltage of 900 V for single shot and 800 V for repetitive operation at 5 kHz, respectively. Near-rectangle waveforms were obtained on resistive load of ~3.2 Ω, with pulse width of ~60 ns, rise-time of ~20 ns, and fall time of ~40 ns. The overall system efficiency was obtained to be ~76%.
Keywords :
MOSFET; optical fibres; power capacitors; power transformers; pulsed power technology; MOSFET; distance 1 cm; distance 33 cm; film capacitor; frequency 50 kHz; linear transformer driver; near-rectangle waveform; pulsed-power generation; single optic fiber; solid-state LTD Module; voltage 800 V; voltage 900 V; Driver circuits; MOSFETs; Magnetic cores; Optical fibers; Optical switches; Power generation; MOSFET; Pulsed power; high voltage; linear transformer driver; power semiconductors;
Conference_Titel :
Power Modulator and High Voltage Conference (IPMHVC), 2010 IEEE International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-7131-7
DOI :
10.1109/IPMHVC.2010.5958298
