回旋行波管的全固态Marx高压脉冲调制器设计

李冰; 罗勇; 朱彦杰; 王丽

doi:10.11884/HPLPB201527.015004

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回旋行波管的全固态Marx高压脉冲调制器设计

doi: 10.11884/HPLPB201527.015004

1.
电子科技大学物理电子学院, 成都 61 0054;
2.
电子科技大学电子工程学院, 成都 61 1 731

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出版历程
- 收稿日期: 2014-07-09
- 修回日期: 2014-11-14
- 刊出日期: 2015-01-20

Design of the solid-state high voltage pulse Marx modulator for gyro-TWT

1.
School of Physical Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China;
2.
School of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China

摘要

摘要: 为回旋行波管设计了全固态近方波Marx高压脉冲调制器，设计参数：输出电压70 kV，输出电流15 A，工作频率0~2 kHz可调，脉宽200 s可调，功率容量可以达到百kW级。设计利用串联IGBT作为控制开关，利用FPGA通过光纤传输的方式对IGBT进行逻辑控制、电路保护和监测，补偿单元利用FPGA控制IGBT自动补偿的方式对顶部压降进行补偿，使得输出电压平顶度达到1%。对电路各个部分进行仿真及测试。结果验证此设计方案的可行性，可以提高回旋管电源的稳定性和工作频率，减小调制器体积及维护成本，并为高压测试提供了实验基础。
- 全固态 /
- Marx /
- IGBT /
- FPGA /
- 高压脉冲
Abstract: This paper designs a high voltage rectangle pulse Marx modulator for gyro-TWT. The output voltage is 70 kV, the output current is 15 A, the frequency could be changed in 2 kHz, the pulse width could be changed in 200 s and the power capacity is up to hundreds kW level. The Marx modulator takes two IGBTs in series as the controlling switches. The FPGA board is used in controlling the switches and protecting and monitoring circuits. The delay compensation circuits are also controlled automatically by FPGA board and make the output pulse flat-top 1%. The prototype simulation and experiments of solid-state Marx modulator have been completed and proved the feasibility of the design. The result is useful to provide a stable and high frequency rectangle pulse, reduce the volume and the maintenance charge and be the foundation of high voltage experiments.
- solid-state Marx modulator /
- IGBT /
- FPGA /
- high voltage pulse /