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Xiaoming Zheng, PhD. School of Dentistry and Health Sciences PEITS 2009 Conference Shenzhen China.

The High Voltage Nanosecond Electric Pulse Generator Based on a Photoconductive Semiconductor Switch. Xiaoming Zheng, PhD. School of Dentistry and Health Sciences PEITS 2009 Conference Shenzhen China.

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Xiaoming Zheng, PhD. School of Dentistry and Health Sciences PEITS 2009 Conference Shenzhen China.

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  1. The High Voltage Nanosecond Electric Pulse Generator Based on a Photoconductive Semiconductor Switch Xiaoming Zheng, PhD. School of Dentistry and Health Sciences PEITS 2009 Conference Shenzhen China.

  2. Minghe Wu1,2, Xiaoming Zheng2, Chengli Ruan1,Hongchun Yang1,Yunqing Sun1,Shan Wang1, Gang Zeng1 , Hong Liu3 1. School of Physical Electronics, University of Electronics Science and Technology of China (UESTC), 610054, Chengdu, China. 2. School of Dentistry and Health Sciences, Charles Sturt University, Wagga Wagga, NSW 2678, Australia. 3. School of Information Technology and Physics, Chengdu University, Chengdu, Sichuan 610068, China. The Authors of This Paper

  3. The Electric Pulse Generator

  4. The New Design

  5. Optical Trigger Pulse from 1.064 μm YAG Laser Fibre Optical Cable PCM 3mm thickness Substrate material Charging Line Conductor PCSS BTL Conductor Microstrip Ground Conductor Load The Integrated Module

  6. The Pulse Outputs

  7. Improvements of the New Generator • Higher power conversion rates (66.3% vs 40%) • Higher input electric field on the PCSS and output voltages (input 26.7kV/cm vs 9kV/cm). • Longer life time (dozens shots vs millions shots). • Lighter in weight and smaller in volume (1.5kg vs 100kg; 15x8x5cm3 vs 60x50x30cm3)

  8. Operational Mechanism of the Photoconductive Semiconductor Switch • Possible operational modes: linear, luck-on and avalanche. • The Shockley-Read-Hall linear model.

  9. Simulation Results

  10. Conclusions • Significant improvements of the new electric pulse generator by employing a pulsed power supply and a Blumlein-like transmission line. These include higher power conversion rates and long life time of the PCSS. • The PCSS is operated in a linear model under higher than critical input electric field.

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