Synchronous Rectification for LLC Resonant Converter: An Overview

被引：56

作者：

Wei, Yuqi ^{[1
]}

Luo, Quanming ^{[2
]}

Mantooth, H. Alan ^{[1
]}

机构：

[1] Univ Arkansas, Dept Elect Engn, Fayetteville, AR 72701 USA

[2] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2021年 / 36卷 / 06期

关键词：

MOSFET; Resonant frequency; Switches; Resonant converters; Rectifiers; Inductors; Power electronics; LLC converter; overview; rectification; synchronous; DRIVING SCHEME; RECTIFIER;

D O I：

10.1109/TPEL.2020.3040603

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

LLC resonant converter is one of the most popular isolated dc/dc converters owning to its advantages of simple control, wide voltage gain regulation capability, and soft switching operation. Nevertheless, high efficiency and high power density are always the goals for LLC converters. To further increase the conversion efficiency, the synchronous rectification (SR) technology is adopted, where the uncontrolled diodes on the secondary side are replaced with SR MOSFETs. Due to the extreme low ON-state resistance value for SR MOSFET, considerable secondary rectifier conduction loss reduction can be achieved; thus, the system efficiency is improved. Tremendous SR driving strategies for LLC converter have been proposed. However, comprehensive overview and insight comparisons among these different driving strategies are lacking. Therefore, the main purpose of this article is to present a comprehensive overview for SR driving strategies and answer the following four questions: 1) Why is SR important for LLC converter? 2) How to generate the SR MOSFET driving signal? 3) What are the advantages and disadvantages? 4) What is the future work regarding SR driving strategy?

引用

页码：7264 / 7280

页数：17

共 65 条

[1]

Abe S, 2013, APPL POWER ELECT CO, P1370, DOI 10.1109/APEC.2013.6520478

[2]

Amouzandeh MS, 2016, APPL POWER ELECT CO, P329, DOI 10.1109/APEC.2016.7467892

[3]

[Anonymous], 2011, AN3303 ST, V1

[4]

[Anonymous], 2011, AN3303 ST, V2

[5]

[Anonymous], 2012, 2012 IEEE 13 WORKSH

[6]

Chen Zhao, 2009, Proceedings of the 2009 IEEE Energy Conversion Congress and Exposition. ECCE 2009, P766, DOI 10.1109/ECCE.2009.5316542

[7]

Choi H, 2015, APPL POWER ELECT CO, P15, DOI 10.1109/APEC.2015.7104326

[8] Constant frequency control of LLC resonant converter using switched capacitor [J].

Chung, S. K. ;

Kang, B. G. ;

Kim, M. S. .

ELECTRONICS LETTERS, 2013, 49 (24) :1556-1557

[9]

CREE, SIC MOSFET PART NUMB

[10]

Daocheng Huang, 2009, Proceedings of the 2009 IEEE Energy Conversion Congress and Exposition. ECCE 2009, P804, DOI 10.1109/ECCE.2009.5316211

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