A high voltage pulse generator based on silicon-controlled rectifier for field-reversed configuration experiment

A high voltage pulse generator based on a silicon-controlled rectifier has been designed and implemented for a field reversed configuration experiment. A critical damping circuit is used in the generator to produce the desired pulse waveform. Depending on the load, the rise time of the output trigge...

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Bibliographic Details
Published in:Review of scientific instruments 2017-08, Vol.88 (8), p.083507-083507
Main Authors: Lin, Munan, Liu, Ming, Zhu, Guanghui, Wang, Yanpeng, Shi, Peiyun, Sun, Xuan
Format: Article
Language:English
Subjects:
Configurations
Damping
Electric potential
Experiments
High voltages
Ignitrons
Power supplies
Pulse generators
Scientific apparatus & instruments
Silicon
Silicon controlled rectifiers
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Summary:A high voltage pulse generator based on a silicon-controlled rectifier has been designed and implemented for a field reversed configuration experiment. A critical damping circuit is used in the generator to produce the desired pulse waveform. Depending on the load, the rise time of the output trigger signal can be less than 1 μs, and the peak amplitudes of trigger voltage and current are up to 8 kV and 85 A in a single output. The output voltage can be easily adjusted by changing the voltage on a capacitor of the generator. In addition, the generator integrates an electrically floating heater circuit so it is capable of triggering either pseudosparks (TDI-type hydrogen thyratron) or ignitrons. Details of the circuits and their implementation are described in the paper. The trigger generator has successfully controlled the discharging sequence of the pulsed power supply for a field reversed configuration experiment.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4997077