Title :
Flux-compression dynamic transformers as pulsed-voltage sources
Author :
Novae, B.M. ; Smith, I.R. ; Rankin, D.F. ; Hubbard, M.
Author_Institution :
Dept. of Electron. & Electr. Eng., Loughborough Univ.
Abstract :
During recent years, the pulsed power group at Loughborough University has developed various electromagnetically driven flux-compression generators. Using thetas-pinch geometry and injecting an initial magnetic field of 2.5 T, ultrahigh magnetic fields in excess of 300 T have been generated in aluminum liner implosions. The fields have a time rate-of-change of up to 350 MT/s. Z-pinch imploding geometry was also investigated, using a cylindrical electric gun with a 50 micron thick aluminum fuse. Helical dynamic transformers were implemented and tested for both geometries, and recordings are presented of the fast-rising high-voltage pulses that were obtained. Potential techniques are suggested and ways to modulate the voltage pulses are demonstrated
Keywords :
Z pinch; electric fuses; electromagnetic fields; pulse generators; pulsed power supplies; transformer testing; Loughborough University; Z-pinch imploding geometry; aluminum liner implosions; cylindrical electric gun; electromagnetically driven flux-compression generators; flux-compression dynamic transformers; helical dynamic transformers; magnetic field; micron thick aluminum fuse; potential techniques; pulsed-voltage sources; transformer testing; voltage pulse modulation; Aluminum; Coils; Copper; Geometry; Magnetic fields; Magnetic flux; Pulse generation; Pulse modulation; Pulse transformers; Voltage;
Conference_Titel :
Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop. Conference Record of the Twenty-Sixth International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8586-1
DOI :
10.1109/MODSYM.2004.1433586
