{"title":"A PWM Plus Voltage-Second Balance Control for ZVS Four-Switch Flyback Converter","authors":"Kuang Wang;Xinbo Ruan;Tao Fu;Fei Liu;Lingxuan Xiao","doi":"10.1109/TIE.2024.3436567","DOIUrl":null,"url":null,"abstract":"The four-switch flyback (FSF) converter features low voltage stress of the power switches and zero-voltage-switching (ZVS). In this article, the clamp capacitance is properly designed to avoid multiple meeting points of the leakage inductance current and magnetizing current. Then, a pulse width modulation (PWM) plus voltage-second balance (VSB) control is proposed to turn <sc>off</small> the clamp switch to guarantee the negative magnetizing current for realizing ZVS, and the secondary rectifier current sensor is not necessary anymore. The principle of the FSF converter is analyzed, the design considerations are provided, and the implementation of the proposed PWM plus VSB control is given. Finally, a 60-W prototype operating at 500 kHz using GaN devices is built and tested in the lab. The experimental results are provided to verify the effectiveness of the proposed control scheme.","PeriodicalId":13402,"journal":{"name":"IEEE Transactions on Industrial Electronics","volume":"72 3","pages":"2633-2643"},"PeriodicalIF":7.2000,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Industrial Electronics","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10638795/","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AUTOMATION & CONTROL SYSTEMS","Score":null,"Total":0}
引用次数: 0
Abstract
The four-switch flyback (FSF) converter features low voltage stress of the power switches and zero-voltage-switching (ZVS). In this article, the clamp capacitance is properly designed to avoid multiple meeting points of the leakage inductance current and magnetizing current. Then, a pulse width modulation (PWM) plus voltage-second balance (VSB) control is proposed to turn off the clamp switch to guarantee the negative magnetizing current for realizing ZVS, and the secondary rectifier current sensor is not necessary anymore. The principle of the FSF converter is analyzed, the design considerations are provided, and the implementation of the proposed PWM plus VSB control is given. Finally, a 60-W prototype operating at 500 kHz using GaN devices is built and tested in the lab. The experimental results are provided to verify the effectiveness of the proposed control scheme.
期刊介绍：
Journal Name: IEEE Transactions on Industrial Electronics
Publication Frequency: Monthly
Scope:
The scope of IEEE Transactions on Industrial Electronics encompasses the following areas:
Applications of electronics, controls, and communications in industrial and manufacturing systems and processes.
Power electronics and drive control techniques.
System control and signal processing.
Fault detection and diagnosis.
Power systems.
Instrumentation, measurement, and testing.
Modeling and simulation.
Motion control.
Robotics.
Sensors and actuators.
Implementation of neural networks, fuzzy logic, and artificial intelligence in industrial systems.
Factory automation.
Communication and computer networks.
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