^(3)He中子探测器小型直流高压电源设计  

Design of Miniaturized DC High-Voltage Power Supply for^(3)He Neutron Detector

作　　者：曹杰 王海涛 王仁波[2,3] 尤翰庭 冯杨洋[3] 陈锐 CAO Jiel;WANG Hai-tao;WANG Reng-bo;YOU Han-ting;FENG Yang-yang;CHEN Rui(East China University of Technology,School of mechanical and Electronic Engineering,Nanchang 330013,China;Fanhua Testing Technology Limited Company,Nanchang 330013,China;Engineering Research Center of Ministry of education for nuclear technology application,Nanchang 330013,China)

机构地区：[1]东华理工大学机械与电子工程学院,南昌330013 [2]泛华检测技术有限公司,南昌330013 [3]教育部核技术应用工程研究中心,南昌330013

出　　处：《核电子学与探测技术》2022年第4期640-645,共6页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金(12075055);江西省自然科学基金(20202BABL201025);江西省新能源工程研究中心开放基金(JXNE-2020-09);江西省教育厅科技计划项目(HJSJYB2019-4)资助。

摘　　要：介绍了低纹波、低功耗^(3)He中子探测小型直流高压电源的设计。该直流高压电源核心部分采用MAX1771芯片、电感和MOS管构成自激振荡,并经后级的多级倍压电路进一步放大输出电压,滤波电路选用π型滤波网络,纹波可控制在20 mV以内。测试结果表明:该直流高压电源输出电压范围为1.0~1.5 kV可调,输出电流最大可达到0.535 mA,静态功率损耗最大为0.3 W,总体指标达到^(3)He中子探测器的电源要求。The indicators of the DC high voltage power supply required for^(3)He neutron detection are:rated voltage 1.2 kV,rated current 0.1 mA,and the power supply volume length×height×width not greater than 20 cm×1 cm×1.5 cm.According to the above requirements,a low-ripple,low-power^(3)He neutron detection small DC high-voltage power supply was developed.The core part of the DC highvoltage power supply uses MAX1771 chip,inductor and MOS tube to form self-oscillation,and the output voltage is further amplified by the subsequent multi-stage voltage doubler circuit.The filter circuit uses a Tr-type filter network,and the ripple can be controlled within 20 mV.Experimental test results show that the output voltage range of the DC high-voltage power supply is adjustable from 1.0~1.5 kV,the maximum output current can reach 0.535 mA,the maximum static power loss is 0.3 W,and the overall index meets the power requirements of the^(3)He neutron detector.

关 键 词：^(3)He中子探测器 高压电源 自激振荡 MAX1771 

分 类 号：TL817.2[核科学技术—核技术及应用]