1. An Efficient, Repetitive Nanosecond Pulsed Power Generator with Ten Synchronized Spark Gap Switches
- Author
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Keping Yan, R.T.W.J. van Hoppe, E.J.M. van Heesch, G.J.J. Winands, A.J.M. Pemen, Zhen Liu, Electrical Energy Systems, Pulsed corona, and Power Conversion
- Subjects
Synchronization (alternating current) ,Pulse repetition frequency ,Materials science ,business.industry ,Energy conversion efficiency ,Electrical engineering ,Output impedance ,Spark gap ,Electrical and Electronic Engineering ,Nanosecond ,Pulsed power ,business ,Pulse-width modulation - Abstract
This paper describes an efficient, repetitive nanosecond pulsed power generator using a Transmission-Line-Transformer (TLT) based multiple-switch technology. Within this setup, a 10-stage TLT and ten high-pressure spark-gap switches are adopted. At the input side, ten spark-gap switches are interconnected in series via the TLT, so that all the spark-gap switches can be synchronized automatically. At the output side, all the stages of the TLT are connected in parallel, thus a low output impedance (5 ¿) is obtained, and a large output current is realized by adding the currents through all the switches. Experimental results show that 10 spark-gap switches can be synchronized within about 10 ns. The system has been successfully demonstrated at repetition rates up to 300 pps (Pulses Per Second). Pulses with a rise-time of about 11 ns, a pulse width of about 55 ns, an energy of 9-24 J per pulse, a peak power of 300-810 MW, a peak voltage of 40-77 kV, and a peak current of 6-11 kA have been achieved with an energy conversion efficiency of 93-98%
- Published
- 2009
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