Development of fast risetime mini-Marx generator

Chuan, 梁川 Liang; Kefeng, 曹科峰 Cao; Linwen, 章林文 Zhang; Zhentao, 张振涛 Zhang; Xiao, 王晓 Wang; Hongguang, 吴红光 Wu

doi:10.3788/hplpb20112305.1413

Cited by 2 publications

(3 citation statements)

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“…It can be estimated by the formula Cg = L/R L 2 , where L is the total inductance of the loop and RL is the load of the generator [10]. An estimated inductance of the generator is about 1.36 μH which is the sum of the capacitor inductance (80 nH), the switch inductance (210 nH), the inductance of the connecting leads (700 nH) and the inductance of the coaxial structure (370 nH) [8].…”

Section: Design Of the Trigger Sourcementioning

confidence: 99%

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A trigger source for linear transformer driver

Cui¹,

Li²,

Wang³

et al. 2023

J. Inst.

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A repetitive low jitter trigger source applied in triggering the multi-gap gas switch of the linear transformer driver (LTD) stage, is designed and developed in this paper.The pulse source based on fast Marx topology can repetitively output a low jitter high voltage pulse into a 50 Ω resistance load with peak value of 150 kV, rising time of 7 ns, width of 260 ns and rep-rate 0.1 Hz. Proper design of stray capacitance to peak the output pulse and employing the UV light to pre-ionize each consequent stage gap to reduce the switch delay time and jitter have been proposed. All those have been demonstrated feasible and reliable. A software program control unit has been developed for operation and control of fast Marx generator. The software gives full remote control by a computer via optical fiber communication. The experimental results show that the trigger source can continuously and reliably generate a 150 kV/260 ns pulse into a resistive load every 10 s with 1-σ jitter less than 2.7 ns. The trigger source is compact and portable and agrees well with the trigger demands of LTD for new fusion energy.

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Section: Design Of the Trigger Sourcementioning

confidence: 99%

“…However Marx generator may be well agree with the demands for LTD switches with 0.1 Hz. And low jitter, fast rise-time pulse is also come true along with the appearance of the low inductance store capacitor and new topology [7,8].…”

Section: Introductionmentioning

confidence: 99%

A trigger source for linear transformer driver

Cui¹,

Li²,

Wang³

et al. 2023

J. Inst.

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“…The eight switches were triggered by a high voltage triggering generator, which deliver eight triggering pulses to trigger electrodes by eight high voltage coaxial-cables. A 5-stages fast Marx generator structure [21] is utilized in the triggering generator. The trigger pulse of anyone of the eight channels driving a 50 Ω resistance load is shown as in figure 3.…”

Section: Jinst 16 P12021mentioning

confidence: 99%

A pulse current generator for dense plasma focus

Xi¹,

Liang²,

Zhang³

et al. 2021

J. Inst.

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A pulse current generator applied in a type of high-yield intense pulsed neutron source, the Dense Plasma Focus (DPF), is designed and developed in this paper. There are three key components in this generator. Each group of capacitors and switches is integrative to meet the DPF's requirements of low circuit inductance. A coaxial multi-channel switch is developed to solve the problems of the switch inductance, the jitter and the electrode erosion. A kind of sectorial plate transmission line is adopted to transfer the high pulse current from the capacitors to the DPF. The following technical parameters of the generator were achieved on dummy load: output current amplitude of ∼560 kA when primary capacitors are charged with 22 kV.

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Development of fast risetime mini-Marx generator

Cited by 2 publications

References 0 publications

A trigger source for linear transformer driver

A trigger source for linear transformer driver

A pulse current generator for dense plasma focus

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