Influence Analysis of Thermally Conductive Epoxy Resin on the Electrical Design of a Compact AC/DC Converter

被引：1
|
作者：
Nitzsche, Maximilian [1 ]
Haarer, Joerg [1 ]
Weimer, Julian [2 ]
Koch, Dominik [2 ]
Roth-Stielow, Joerg [1 ]
机构：
[1] Univ Stuttgart, Inst Power Elect & Elect Drives, Stuttgart, Germany
[2] Univ Stuttgart, Inst Robust Power Semicond Syst, Stuttgart, Germany
来源：
2021 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2021年
关键词：
resonant converter; thermal design; transformer; epoxy resin;
D O I：
10.1109/ECCE47101.2021.9594931
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The design of a compact AC/DC converter for a wide output voltage range imposes stringent challenges regarding electrical and thermal performance. To match these requirements this paper presents the design approach and measurements of a Totem-Pole Power Factor Correction (PFC) and a resonant LLC converter stage, optimized for a maximum average efficiency over a wide operating range. The work deals with the design process itself, which is subdivided into the derivation of the necessary efficiency due to the thermal and geometrical boundary conditions. Further it details the influence of the high packing density and the thermal management on the electrical behavior. A thermally conductive epoxy resin which is designed to meet increasing demands for efficient thermal dissipation has significant unintentional influence on the electrical behavior of the LLC resonant circuit. The root causes are analyzed and verified by measurements.
引用
收藏
页码：5677 / 5683
页数：7
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