Design and Experimental Validation of a High-Current Marx Pulse Generator with Coordinated Voltage Balancing and Current Sharing Based on Series–Parallel IGBTs.
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| Title: | Design and Experimental Validation of a High-Current Marx Pulse Generator with Coordinated Voltage Balancing and Current Sharing Based on Series–Parallel IGBTs. |
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| Authors: | Yao, Cheng1 (AUTHOR), Dong, Shoulong1,2 (AUTHOR) dsl@cqu.edu.cn, Li, Chengxiang1 (AUTHOR), Bo, Zongqing2 (AUTHOR), Xiang, Sizhe1 (AUTHOR), Zhao, Lisheng1 (AUTHOR) |
| Source: | Energies (19961073). Jun2026, Vol. 19 Issue 11, p2546. 15p. |
| Subject Terms: | *Insulated gate bipolar transistors, *Current distribution, *Pulsed power systems, *RC circuits, *Model validation, *Pulse generators, *Mutual inductance |
| Abstract: | Pulsed power systems require compact high-voltage pulse generators with high current capability, where series–parallel configurations of semiconductor switches are inevitable. However, voltage imbalance in series devices and current mismatch in parallel branches significantly degrade system reliability under high-current pulsed conditions. In this work, a high-current solid-state Marx pulse generator based on a series–parallel IGBT configuration is proposed with a coordinated voltage balancing and current sharing strategy. A passive RC snubber is employed to suppress dynamic voltage imbalance, while a coupled inductor is introduced to mitigate transient and steady-state current mismatch. Simulation and experimental results demonstrate that the prototype achieves a peak output of 5 kV and 1000 A with adjustable pulse widths of 2–10 μs. The current imbalance degree is reduced from 45.8% to 3.1%, indicating significantly improved current sharing performance. The proposed method provides an effective and scalable solution for high-current pulsed power applications. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Abstract: | Pulsed power systems require compact high-voltage pulse generators with high current capability, where series–parallel configurations of semiconductor switches are inevitable. However, voltage imbalance in series devices and current mismatch in parallel branches significantly degrade system reliability under high-current pulsed conditions. In this work, a high-current solid-state Marx pulse generator based on a series–parallel IGBT configuration is proposed with a coordinated voltage balancing and current sharing strategy. A passive RC snubber is employed to suppress dynamic voltage imbalance, while a coupled inductor is introduced to mitigate transient and steady-state current mismatch. Simulation and experimental results demonstrate that the prototype achieves a peak output of 5 kV and 1000 A with adjustable pulse widths of 2–10 μs. The current imbalance degree is reduced from 45.8% to 3.1%, indicating significantly improved current sharing performance. The proposed method provides an effective and scalable solution for high-current pulsed power applications. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 19961073 |
| DOI: | 10.3390/en19112546 |
