高压LTCF变压器测试电路原理及实现  

The principle and circuit implementation for testing high-voltage LTCF transformer

作　　者：毕升 赵勇[2] 张弛 王升[2] 代中华[2] BI Sheng;ZHAO Yong;ZHANG Chi;WANG Sheng;DAI Zhong-hua(Southwest China Research Institue of Electronic Equipmen,Chengdu 610036,China;Southwest Institute of Applied Magnetics,Mianyang 621000,China)

机构地区：[1]西南电子工程研究所,四川成都610036 [2]西南应用磁学研究所,四川绵阳621000

出　　处：《磁性材料及器件》2018年第5期32-35,共4页Journal of Magnetic Materials and Devices

基　　金：国家重点研发计划资助项目(2017YFB0503100)

摘　　要：研究了高压LTCF变压器的测试原理与方法,并进行了相应的硬件电路设计与试验验证。该方法基于反激式变换电路,从理想变压器电路出发,推导了高压LTCF变压器输出电压公式,分析了各参量的影响。针对LTCF变压器的大漏感所造成的电压尖峰突出问题,采取增大寄生电容的方式予以抑制。最后,对电科九所生产的高压LTCF变压器进行实际测试,设计了开环电路测试变压器最大输出能力,闭环电路实现了1.2 k V稳定电压输出。The test principle and method for high-voltage LTCF transformer have been researched and the corresponding circuit design and experimental verification have been conducted.The method is based on the flyback converter circuit.According to ideal transformer,output voltage formula of high-voltage LTCF transformer was derived and the influence of the various parameters was analyzed.To solve the problem of voltage spike caused by large leakage inductance of the LTCF transformer,increasing parasitic capacitance was applied.At last,the high–voltage LTCF transformer made by our institute was tested,an open-loop circuit was designed to test the maximum output capacity of the transformer and a closed-loop circuit was designed to achieve 1.2 kV stable voltage output.

关 键 词：LTCF变压器 高压 伏微秒积 反激式变换电路 测试电路 

分 类 号：TM4[电气工程—电器]