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

Volume

1

fYear

1995

fDate

3-6 July 1995

Firstpage

729

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulsed Power Conference, 1995. Digest of Technical Papers., Tenth IEEE International

Conference_Location

Albuquerque, NM, USA

Print_ISBN

0-7803-2791-8

Type

conf

DOI

10.1109/PPC.1995.596806

Filename

596806