摘要
针对传统电源拓扑在多路隔离输出应用中的高复杂度、高成本及灵活性不足的问题,本文提出了一种基于分立式开关电源的设计方案。该系统采用数字化控制策略,通过微控制器控制信号的动态时序分配,结合高速功率驱动器、D型触发器电压反馈架构、多绕组变压器及同步整流技术,实现了七路浮地(Floating Ground,FGND)电压同步输出(±50 VAF、±15 VAF、+5 VAF、+3.3 VAF、+1.5 VAF)有效的简化电路设计的复杂程度,提高电源转换效率。实验结果表明,各通道输出电压精度在±1%以内,纹波低至50 mV以下,为高精密测量仪器供电提供了高集成度、低成本的解决方案。
To address the challenges of high complexity,elevated cost,and limited flexibility in traditional power supply topologies for multi-channel isolated output applications,this paper proposes a discrete switching power supply design scheme.The system incorporates a digital control strategy that dynamically allocates signal timing via microcontroller regulation,integrated with high-speed power drivers,a D-flip-flop-based voltage feedback architecture,a multi-winding transformer,and synchronous rectification technology.This architecture achieves synchronous output of seven floating ground(FGND)voltages(±50VAF,±15VAF,+5VAF,+3.3VAF,and+1.5VAF),significantly simplifying circuit design complexity while enhancing power conversion efficiency.Experimental results demonstrate that all output channels maintain voltage accuracy within±1%and exhibit ripple voltages below 50mV.This solution provides a highly integrated,cost-effective power supply architecture tailored for high-precision measurement instruments.
作者
邵霄杰
崔渊
黄成
赵浩华
陈绪聪
SHAO Xiao-jie;CUI Yuan;HUANG Cheng;ZHAO Hao-hua;CHEN Xu-cong(Jiangsu Institute of Technology,Changzhou 213001,China;Changzhou Tonghui Electronic Co.Ltd.,Changzhou 213031,China)
出处
《山东工业技术》
2025年第4期9-16,共8页
Journal of Shandong Industrial Technology
基金
国家自然科学基金青年项目(12304477)
江苏省常州市科技厅资助项目(CJ20235056)
企业横向项目(KYH23019)。
关键词
分立式开关电源
线性稳压
反馈控制
多路输出
浮地电压
discrete switching power supplies
linear voltage regulation
feedback control
multi-channel output
floating voltage
