{"title":"双以太网供电系统中的电流均衡电路设计","authors":"Xingyu Guan, Xinyuan Hu, Junkai Zhang, Y. Jiang","doi":"10.3390/jlpea13040060","DOIUrl":null,"url":null,"abstract":"A current-balancing circuit for a dual-channel Ethernet power supply system is designed in this paper, which can be used to solve the mismatch between the two channels caused by unavoidable factors, such as mismatched resistances, temperatures and voltages. Based on the design, the mismatch of the currents between the two power transmission paths can be controlled to be less than 1% of the original ones. It can be operated under these conditions with the changes of the load current and the PSE output voltage. The maximum output power of the dual-channel power supply can reach up to 96.5 W. When the DC–DC conversion efficiency is less than 75%, it can still provide 72 W for the PD end, meeting the requirements of the PoE power system. The current-balancing circuit designed in the paper has potential application value to improve the dual PoE power supply system.","PeriodicalId":38100,"journal":{"name":"Journal of Low Power Electronics and Applications","volume":"68 2","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2023-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Design of Current Equalization Circuit in Dual Ethernet Power Supply System\",\"authors\":\"Xingyu Guan, Xinyuan Hu, Junkai Zhang, Y. Jiang\",\"doi\":\"10.3390/jlpea13040060\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A current-balancing circuit for a dual-channel Ethernet power supply system is designed in this paper, which can be used to solve the mismatch between the two channels caused by unavoidable factors, such as mismatched resistances, temperatures and voltages. Based on the design, the mismatch of the currents between the two power transmission paths can be controlled to be less than 1% of the original ones. It can be operated under these conditions with the changes of the load current and the PSE output voltage. The maximum output power of the dual-channel power supply can reach up to 96.5 W. When the DC–DC conversion efficiency is less than 75%, it can still provide 72 W for the PD end, meeting the requirements of the PoE power system. The current-balancing circuit designed in the paper has potential application value to improve the dual PoE power supply system.\",\"PeriodicalId\":38100,\"journal\":{\"name\":\"Journal of Low Power Electronics and Applications\",\"volume\":\"68 2\",\"pages\":\"\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2023-11-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Low Power Electronics and Applications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3390/jlpea13040060\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Low Power Electronics and Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/jlpea13040060","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
摘要
本文设计了一种双通道以太网供电系统的电流平衡电路，可用于解决由于电阻、温度和电压不匹配等不可避免的因素造成的双通道之间的不匹配问题。根据该设计，两条电力传输路径之间的电流失配可控制在原始电流的 1%以下。在这些条件下，它可以随着负载电流和 PSE 输出电压的变化而运行。双通道电源的最大输出功率可达 96.5 W。当 DC-DC 转换效率低于 75% 时，它仍能为 PD 端提供 72 W 的功率，满足 PoE 电源系统的要求。本文设计的电流平衡电路对改进双 PoE 电源系统具有潜在的应用价值。
Design of Current Equalization Circuit in Dual Ethernet Power Supply System
A current-balancing circuit for a dual-channel Ethernet power supply system is designed in this paper, which can be used to solve the mismatch between the two channels caused by unavoidable factors, such as mismatched resistances, temperatures and voltages. Based on the design, the mismatch of the currents between the two power transmission paths can be controlled to be less than 1% of the original ones. It can be operated under these conditions with the changes of the load current and the PSE output voltage. The maximum output power of the dual-channel power supply can reach up to 96.5 W. When the DC–DC conversion efficiency is less than 75%, it can still provide 72 W for the PD end, meeting the requirements of the PoE power system. The current-balancing circuit designed in the paper has potential application value to improve the dual PoE power supply system.
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