A compact high-voltage pulse generator based on pulse transformer with closed magnetic core

作者：Zhang, Yu; Liu, Jinliang^*; Cheng, Xinbing; Bai, Guoqiang; Zhang, Hongbo; Feng, Jiahuai; Liang, Bo

来源：Review of Scientific Instruments, 2010, 81(3): 033302.

DOI：10.1063/1.3321494

• capacitance
• insulation
• pulse generators
• pulse transformers
• spark gaps
• transformer windings

A compact high-voltage nanosecond pulse generator, based on a pulse transformer with a closed magnetic core, is presented in this paper. The pulse generator consists of a miniaturized pulse transformer, a curled parallel strip pulse forming line (PFL), a spark gap, and a matched load. The innovative design is characterized by the compact structure of the transformer and the curled strip PFL. A new structure of transformer windings was designed to keep good insulation and decrease distributed capacitance between turns of windings. A three-copper-strip structure was adopted to avoid asymmetric coupling of the curled strip PFL. When the 31 mu F primary capacitor is charged to 2 kV, the pulse transformer can charge the PFL to 165 kV, and the 3.5 matched load can deliver a high-voltage pulse with a duration of 9 ns, amplitude of 84 kV, and rise time of 5.1 ns. When the load is changed to 50 , the output peak voltage of the generator can be 165 kV, the full width at half maximum is 68 ns, and the rise time is 6.5 ns.

• 出版日期2010-3
• 单位中国人民解放军国防科学技术大学