Compact isolation driver design based on PCB coreless transformer

Feng Lingxiao; Li Guochao; Zhang Rongrong; Zhou Yuliang; Yuan Haoyang; Qiu Jian; Zhao Hui; Liu Kefu; Li Liuxia

doi:10.11884/HPLPB202638.250342

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2026 > Accepted Manuscript

Feng Lingxiao, Li Guochao, Zhang Rongrong, et al. Compact isolation driver design based on PCB coreless transformer[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250342

Citation:

Feng Lingxiao, Li Guochao, Zhang Rongrong, et al. Compact isolation driver design based on PCB coreless transformer[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250342

Feng Lingxiao, Li Guochao, Zhang Rongrong, et al. Compact isolation driver design based on PCB coreless transformer[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250342

Citation:

Feng Lingxiao, Li Guochao, Zhang Rongrong, et al. Compact isolation driver design based on PCB coreless transformer[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250342

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Compact isolation driver design based on PCB coreless transformer

doi: 10.11884/HPLPB202638.250342

1.
College of Intelligent Robotics and Advanced Manufacturing, Fudan University, Shanghai 200433, China
2.
School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Received Date: 2025-10-13
Accepted Date: 2025-12-24
Rev Recd Date: 2026-01-08

Available Online: 2026-02-13

Abstract

Abstract

Background
In all-solid-state Marx pulse generators, the isolated gate driver plays a critical role in ensuring reliable high-voltage and high-speed switching. Conventional isolation driving schemes based on magnetic-core transformers often suffer from large volume, high cost, and poor integration, which limit further miniaturization and system-level integration.
Purpose
To address these issues, this study proposes a synchronous isolated gate driving scheme based on a PCB-embedded coreless transformer, aiming to reduce driver size and cost while improving integration and manufacturability for all-solid-state Marx pulse generator applications.
Methods
The proposed coreless transformer was first modeled, and its key electromagnetic parameters were extracted using Q3D electromagnetic simulation and validated through experimental measurements. Based on theoretical analysis and LTspice simulations of the driving circuit, the operating principles and driving sequence characteristics were investigated and compared with those of conventional magnetic-core transformer-based drivers. Finally, a prototype driving system was developed and experimentally evaluated.
Results
Simulation and experimental results show that the proposed PCB coreless transformer-based driving scheme exhibits a wide dynamic driving range, excellent electrical isolation performance, and good compatibility with standard PCB manufacturing processes. The experimental waveforms are consistent with theoretical analysis and simulation results, confirming the correctness of the proposed design and modeling approach.
Conclusions
The proposed synchronous isolated driving scheme based on a PCB coreless transformer provides an effective solution to the challenges of volume, cost, and integration in conventional isolation drivers for all-solid-state Marx pulse generators. The results demonstrate its feasibility and strong potential for practical engineering applications in compact and highly integrated pulsed power systems.
- Coreless transformer,
- PCB transformer,
- isolated gate driver,
- wide dynamic range driver

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References(15)

References

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