An improved design of a dc-dc converter using an integrated magnetic component
An improved design of a dc-dc converter using an integrated magnetic component
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使用集成磁性元件的 DC-DC 转换器的改进设计
DOI：
10.1109/apec.2008.4522784
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
H. Benqassmi
中科院分区：
文献类型：
--
作者：
A. Kerim;J. Ferrieux;J. Roudet;S. Catellani;H. Benqassmi
本文详细分析了一种集成磁结构。介绍了集成磁性元件的广义解析设计公式。提出了一种改进的数值方法来估计集成磁半桥DC/DC变换器中非正弦电流波形引起的邻近损耗。该方法是基于具有复磁导率的电导体的双曲正切。利用有限元软件将这种改进方法应用于一个整体结构。给出了1 kW、48 V集成倍流整流器的计算机仿真结果。一个原型已经实施和测试。实验结果验证了理论研究和仿真的正确性
This paper presents a detailed analysis of an integrated magnetic structure. A generalized analytical designing formula of an integrated magnetic component is introduced. An improved numerical method is applied to estimate the proximity losses due to currents waveforms in an integrated magnetic half-bridge dc/dc converter, which are not sinusoidal. This method is based on the homogenizing of the electric conductors with a complex permeability. This improved method of homogenizing Litz wires is applied to an integrated structure using finite elements software. Computer simulation results are presented for 1 kW, 48-V integrated current-doubler rectifier. A prototype has been implemented and tested. Experimental results confirm the theoretical study and simulation