具有不同磁芯的 PCB 嵌入式螺线管电感器

IF 1.3 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Power Electronics Pub Date : 2024-06-21 DOI:10.1007/s43236-024-00861-x
KaiCheng Zheng, Lei Liu, YiJun Chen, MengJie Cheng, GuoHua Bai, Yang Feng, JiaLiang Zhang, XiaoAn Wang, Chen Tian, ZhengMin Zhang, TingCong Ye, NingNing Wang
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摘要

本文展示了使用空气磁芯和两个嵌入式磁芯的三种印刷电路板(PCB)集成螺线管电感器的设计、建模、制造和特性分析。制作过程采用双面印刷电路板工艺来形成电感器绕组。印刷电路板中间有一个容纳磁芯的空腔。电感器的磁芯采用两种类型的磁芯,它们都是利用内部开发的专有工艺制作而成。其中一种磁芯由铁硅铝(FeSiAl)磁粉制成,另一种则由层压镍铁薄膜制成。电感器的尺寸为 5 毫米 × 3 毫米 × 1.56 毫米。铁硅铝磁粉芯电感器的品质因数在 40 MHz 时达到 36.6 的峰值。镍铁合金多层薄膜磁芯电感器在 10 MHz 时电感值最高(22.48 nH),但与其他两个电感器相比,其品质因数较低。这两种磁芯电感器的测试饱和电流都大于 3 A。这些电感器还在一个 10 MHz 的降压转换器中进行了测试,该转换器的输入电压为 4 V,输出电压为 1 V,负载电流为 1 A。铁硅铝粉末磁芯电感器的损耗最低,仅为 115 mW,这表明嵌入预制粉末磁芯或多层薄膜磁芯是制造 PCB 集成电感器的良好选择。粉末磁芯方法往往能产生出色的高频性能,而多层薄膜磁芯方法则能将磁性薄膜工艺集成到印刷电路板制造流程中,从而降低成本并提高批量生产的可靠性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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PCB-embedded solenoid inductors with different magnetic cores

The design, modeling, fabrication, and characterization of three types of printed circuit board (PCB)-integrated solenoid inductors using air core and two embedded magnetic cores are demonstrated in this paper. The fabrication applies a double-side PCB process to form the inductor windings. A cavity for accommodating the magnetic cores is created in the middle of the PCB. Two types of magnetic cores fabricated using in-house developed proprietary processes are applied as magnetic cores for the inductors. One of these cores is made out of FeSiAl magnetic powder, while the other is made out of laminated NiFe thin films. The size of the inductor is 5 mm × 3 mm × 1.56 mm. The quality factor of the FeSiAl powder core inductor reaches its peak value of 36.6 at 40 MHz. The NiFe multilayer thin-film core inductor obtains the highest inductance (22.48 nH) at 10 MHz but has a lower quality factor compared with the two other inductors. The tested saturation current of both magnetic core inductors is greater than 3 A. The inductors are also tested in a Buck converter switching at 10 MHz with an input voltage of 4 V, output voltage of 1 V, and load current of 1 A. The FeSiAl powder core inductor has the lowest loss of 115 mW, thereby suggesting that embedding the pre-made powder cores or multilayer thin-film cores is a good option for manufacturing PCB-integrated inductors. The powder core approach tends to yield an excellent high frequency performance, while the multilayer thin-film core option allows the integration of the magnetic thin-film process into the PCB fabrication flow to reduce costs and improve reliability for volume production.

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来源期刊
Journal of Power Electronics
Journal of Power Electronics 工程技术-工程:电子与电气
CiteScore
2.30
自引率
21.40%
发文量
195
审稿时长
3.6 months
期刊介绍: The scope of Journal of Power Electronics includes all issues in the field of Power Electronics. Included are techniques for power converters, adjustable speed drives, renewable energy, power quality and utility applications, analysis, modeling and control, power devices and components, power electronics education, and other application.
期刊最新文献
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