Spread-Spectrum Technique Employing Phase-Shift Modulation to Reduce EM Noise for Parallel-Series LLC Resonant Converter

被引：14

作者：

Park, Hwa-Pyeong ^{[1
]}

Kim, Mina ^{[1
]}

Jung, Jee-Hoon ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Sch Elect & Comp Engn, Ulsan 44919, South Korea

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2019年 / 34卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Electromagnetic interference (EMI); LLC resonant converter; output-voltage regulation; spread spectrum; OPTIMIZATION; EMISSION; DESIGN;

D O I：

10.1109/TPEL.2018.2851024

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：

A spread-spectrum technique (SST) has been developed to mitigate an electromagnetic interference in power converters. However, for resonant converters using a pulse-frequency modulation, it is difficult to regulate its output voltage with the SST, because the switching-frequency variation according to the spread spectrum induces large output-voltage fluctuation. In this letter, an enhanced phase-shift algorithm of the frequency modulation of the SST and a parallel-series structure for an LLC resonant converter are proposed to obtain a tight output-voltage regulation under the spread-spectrum operation. The performance of the proposed methods is experimentally verified using a 600-W prototype parallel-series LLC resonant converter.

引用

页码：1026 / 1031

页数：6

共 25 条

[1] Spread Spectrum Modulation to Reduce EM Noise for LLC Resonant Converter Using Partial Power Processing Concept
Heo, Kyung-Wook
Park, Hwa-Pyeong
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[J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2024, 39 (01) : 949 - 960
[2] Hybrid Modulation of Parallel-Series LLC Resonant Converter and Phase Shift Full-Bridge Converter for a Dual-Output DC-DC Converter
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