现代信息科技2025，Vol.9Issue(13)：13-16,21,5.DOI:10.19850/j.cnki.2096-4706.2025.13.003
一种超低损耗双路电源切换电路设计
Design of an Ultra-low Loss Dual Power Switching Circuit
摘要
Abstract
Firstly,the advantages and disadvantages of the current dual power switching technology scheme are introduced,and the scheme is improved by designing an ultra-low loss dual power switching circuit consisting of two PMOS main transistors and two high-end load switches.The dual power switching circuit belongs to a symmetrical circuit,which uses the first high-end load switching transistor to control the gate of the PMOS main transistor of the second power channel.The second high-end load switching transistor controls the PMOS main gate of the first power channel.Compared with traditional dual power switching and ideal diode technology solutions,dual power switching has priority,prioritizing the use of high voltage power supplies,and has anti backflow function for both power supplies to protect the front-end circuit of the power supply.The use of combinational logic comparison circuits has the advantages of simple circuit design,low static power consumption,low cost,and strong practicality.关键词
超低损耗/双路电源切换/高端负载开关/倒灌电流Key words
ultra-low loss/dual power switching/high-end load switch/reverse current分类
信息技术与安全科学引用本文复制引用
陈石平,刘晓微,徐启永,胡江飞,冯俊劼..一种超低损耗双路电源切换电路设计[J].现代信息科技,2025,9(13):13-16,21,5.基金项目
广东省教育厅普通高校重点科研平台和项目(2023KCXTD067) （2023KCXTD067）
广东省教育科学规划领导小组办公室教育科学规划项目(2022GXJK101) （2022GXJK101）
2023年广东省高职教育教学改革研究与实践项目(2023JG038) （2023JG038）
广东科贸职业学院校级科研项目(GDKM2023-01,GDKM2022-118) （GDKM2023-01,GDKM2022-118）
教育部学生司第二期供需对接就业育人项目(20230103005,20230103207,20230105347,20230109373) （20230103005,20230103207,20230105347,20230109373）
