Search

The technical path combining pulse forming with inductive adding is one of the important candidates to realize pulsed power miniaturization. In this paper, the cell structure of the linear transformer driver(LTD), which is based on pulse forming network(PFN), with impedance 2.5 and pulse width 200ns is introduced. The outputs of two such LTDs are inductively added to a load through the cathode pole, which forms a double-cell module based on the LTDS. The experiment results show that the high-voltage pulse waveform from the double-cell module at charging voltage of 40 kV and repetition frequency of 20 Hz/40 Hz accords with that from PFN discharged directly, and its jitter is about 2 ns. The coherence of the output pulse waveforms is quite good at repetition mode.

For switch delay of normal distribution, the effects of switch jitter and single waveform’s rise time on the rise time of resultant waveforms are discussed when multiple switches work synchronously. The simulation result shows that the effects of switch jitter on the rise time of resultant waveforms are related to the single waveform’s rise time. The less the rise time of single waveform is, the stronger the effects of switch jitter on the rise time of resultant waveforms. For four switches with the jitter of 5 ns, the rise time of resultant waveforms will decrease from 6.7 ns to 1.7 ns when the rise time of single waveform increases from 10 ns to 80 ns. When the rise time of single waveform is large, there is no use going for small switch jitter.