Title :
Test of fast SCRs as spark gap replacement
Author :
Jung, M. ; Mayerhofer, W. ; Edele, M. ; Gstir, O. ; Schweizer, Th ; Zeyfang, E. ; Ramezani, E.
Author_Institution :
DLR Inst. fur Technische Physik, Stuttgart, Germany
Abstract :
To replace the spark gaps in the PFNs of our pulsed high power CO/sub 2/ laser first investigations on fast SCRs have been made. We report our tests on stacked high current thyristors (HCT) as a closing switch at an 8 /spl mu/F capacitor bank with various resistor loads. The charged voltage per stack unit was up to 3.6 kV. At a peak current of 9 kA, we reached a maximum di/dt of 8 kA//spl mu/s. First tests on repetitive operations have been done. The results show the possibility to replace the spark gaps of our system by HCTs.
Keywords :
capacitor storage; carbon compounds; gas lasers; laser accessories; power capacitors; power supplies to apparatus; pulsed power switches; thyristor applications; 3.6 kV; 8 muF; 9 kA; CO/sub 2/; capacitor bank; charged voltage per stack unit; closing switch; fast SCR; peak current; pulsed high power CO/sub 2/ laser; repetitive operations; resistor loads; spark gap replacement; stacked high current thyristors; Capacitors; Costs; Frequency; Resistors; Spark gaps; Switches; Switching circuits; Testing; Thyristors; Voltage;
Conference_Titel :
Pulsed Power Conference, 1995. Digest of Technical Papers., Tenth IEEE International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-2791-8
DOI :
10.1109/PPC.1995.596806
