A repetitive high voltage pulse adder based on solid state switches

A repetitive high voltage pulse modulator based on solid state switches with insolated recharge is described. All capacitors in the modulator are recharged by a corresponding transformer separately through magnetic core transformers by a common high frequency power supply. This configuration simplifies the isolation design and arrangement. This scheme is suitable for work at high repetitive rate discharge due to its high charge efficiency. At the same time it retains the inherent switch protection capability of a solid-state Marx modulator. In our present work, a 22-stage test modulator has been built and has been successfully operated at repetitive rate of 20kHz, output voltage of 20kV, rise time of 150ns and pulse width of 3μs. The primary experiments verified the system feasibility. A system with higher parameters is under way.

[1]  M. Akemoto,et al.  Solid-state modulator R&D for JLC , 2001, PPPS-2001 Pulsed Power Plasma Science 2001. 28th IEEE International Conference on Plasma Science and 13th IEEE International Pulsed Power Conference. Digest of Papers (Cat. No.01CH37251).

[2]  K. Fukushima,et al.  All-solid-state pulsed power modulator for high power, high repetition rate applications , 1999, Digest of Technical Papers. 12th IEEE International Pulsed Power Conference. (Cat. No.99CH36358).

[3]  Geun-Hie Rim,et al.  High voltage pulse power supply using Marx generator & solid-state switches , 2005, 31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005..

[4]  Jian Qiu,et al.  Repetitive and High Voltage Marx Generator Using Solid-state Devices , 2007, IEEE Transactions on Dielectrics and Electrical Insulation.

[5]  R. M. Nelms,et al.  A capacitor-charging power supply using a series-resonant topology, constant on-time/variable frequency control, and zero-current switching , 1991 .

[6]  Yong-Ho Chung,et al.  All solid-state, switched pulser for air pollution control system , 1999, Digest of Technical Papers. 12th IEEE International Pulsed Power Conference. (Cat. No.99CH36358).

[7]  V. Bityurin,et al.  Energy efficiency of NO removal by pulsed corona discharges , 1996 .

[8]  W. J. Carey,et al.  Marx generator design and performance , 2002, Conference Record of the Twenty-Fifth International Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop..