A Drive Circuit With Overcurrent Protection for Solid-State Marx Generators

Yuan, Shuai; Wang, Yonggang; Zi, Li; Jiang, Song; Zhuang, Jie; Rao, Jun

doi:10.1109/tps.2022.3186069

Cited by 2 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, active protection circuits in high-voltage pulse generators are quite costly and rarely used. Passive drive protection circuits do not require an additional power supply, use of sampling resistors [22][23][24], or desaturation protection [25]. The challenge is that the drive circuit with overcurrent protection should have fast response speed and high-voltage isolation in the strong electromagnetic environment.…”

Section: Introductionmentioning

confidence: 99%

A Solid-State Marx Generator with Prevention of through Current for Rectangular Pulses

Shi,

Chen,

Jiang

et al. 2023

Electronics

Self Cite

View full text Add to dashboard Cite

In solid-state high-voltage pulse generators, switches may be triggered on by fault due to electromagnetic interference, resulting in high through current and breakdown of switches. To generate rectangular high-voltage pulses, this paper proposes a solid-state Marx generator (SSMG) with fast recovery diodes to prevent through current. Only charging currents with the same direction flow through these fast recovery diodes breaks the short-circuit loops in and between stages. A 52-stage SSMG prototype based on the proposed circuit was developed. PSpice simulations and experiments were performed for comparison. It was found that the through current can rise to 250 A without any protection. With 10-μH protection inductors in each state, the through current amplitude drops to 50 A. Under the same condition, there is no continuous through current with the proposed fast recovery diodes. Furthermore, 22-kV repetitive rectangular pulses were also obtained in experiments. This proved that the proposed Marx generator can prevent the through current in power cells.

show abstract