An Accurate Design Algorithm for LLC Resonant Converters-Part II

This paper proposes a new approach to optimally design LLC converters. The core of the proposed approach is an accurate algorithm that can find all the possible designs satisfying the peak-gain requirement. Designers can conveniently evaluate several design results and find the optimal one for their...

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Bibliographic Details
Published inIEEE transactions on power electronics Vol. 31; no. 8; pp. 5448 - 5460
Main Authors Zhiyuan Hu, Laili Wang, Yajie Qiu, Yan-Fei Liu, Sen, Paresh C.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.08.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Accuracy
Algorithm design and analysis
Algorithms
Converters
Design analysis
Design engineering
Design methodology
Design optimization
Electric potential
Electrical equipment
Inductance
LLC converter
Mathematical model
modeling
MOSFET
Optimization
Prototypes
Q-factor
Resonant power conversion
switched-mode power supply
Switching frequency
Voltage
LLC converter
switched-mode power supply
modeling
resonant power conversion
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Summary:This paper proposes a new approach to optimally design LLC converters. The core of the proposed approach is an accurate algorithm that can find all the possible designs satisfying the peak-gain requirement. Designers can conveniently evaluate several design results and find the optimal one for their respective applications. Part II of this paper discusses design considerations and procedure using the proposed algorithm. Case studies reveal different design tradeoffs in different application scenarios. A 384-V nominal 300-V minimum input voltage range 12-V/50-A output LLC converter prototype with 97.3% peak efficiency is built to verify the proposed design algorithm.
Bibliography:ObjectType-Article-1
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ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2015.2496179