一种高压可调高频开关电源设计方案  

Design project of a high-voltage adjustable high-frequency switching power supply

作　　者：王红旗[1] 万各各 WANG Hongqi;WAN Gege(School of electrical engineering and automation,Henan Polytechnic University,Jiaozuo 454000,Henan,Chin)

机构地区：[1]河南理工大学电气工程与自动化学院

出　　处：《河南理工大学学报（自然科学版）》2018年第3期107-112,共6页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(61104119);河南省控制工程开放实验室科研项目(KG2014-18)

摘　　要：传统的线性电源具有体积大、质量大、效率低、功率因数低等缺点,为克服这些缺点,提出一种新型高压可调高频开关电源设计方案。该方案采用半桥拓扑结构,具有控制输出电压和限制最大工作电流的能力。针对此电源,对其主电路高频变压器进行设计,提出一种改进型半桥拓扑结构;使用芯片SG3525和LM324设计一套控制电路,提出一种多段分程控制方式。利用PSPICE仿真软件设计仿真电路,对控制方案进行可行性研究。利用所提出的设计方案实现了高压调解0~1 000 V的试验样机,有效验证了该方案的可行性。Because of the big volume,the heavy weight,the low efficiency and the low power factor of the linear power supply in traditional high-voltage adjustable power supply field,one new designed project of high-voltage adjustable high-frequency switching power supply is proposed. The project is realized by half-bridge topology,which can control output voltage and can limit biggest current. Aimed at the converter,the high-frequency transformer of main power supply circuit is designed,and an advance half-bridge topology is proposed. In addition,a control circuit is layout using chip SG3525 and LM324,and one control mode of multi-step split-ranging is proposed. Feasibility study of the project was implemented by PSPICE software. One 0 ～ 1 000 V experimental prototype was realized and the feasibility of the designed project was verified by the prototype.

关 键 词：改进型半桥拓扑 高频变压器设计 补偿网络设计 多段分程控制 

分 类 号：TM919[电气工程—电力电子与电力传动]