分析和缓解高频运行平面变压器中的寄生电容

IF 1.3 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Power Electronics Pub Date : 2024-04-16 DOI:10.1007/s43236-024-00804-6
Sujeong Lee, Seokwon Kim, Jong-Won Shin, Wonhee Kim
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引用次数: 0

摘要

平面磁性元件结构紧凑,铜层薄,不易受集肤效应影响。然而,寄生电容的增加一直是平面变压器(PTs)高频工作中的一个难题。寄生电容与电感共振,可能会损坏开关设备。本文建议采用加厚印刷电路板(PCB)和重新配置绕组的方法来减少寄生电容。本文利用 PT 原型对寄生电容进行了详细分析。印刷电路板加厚 0.4 毫米后,谐振频率从 1.27 MHz 提高到 1.63 MHz。重新配置后的 PT 为 1.38 MHz,比原来的 PT 高 0.3 MHz。
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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Analyzing and mitigating parasitic capacitances in planar transformers for high-frequency operation

Planar magnetic components are compact and less susceptible to skin effect due to their thin copper layers. However, the increase in parasitic capacitance has been a challenge in high-frequency operation of planar transformers (PTs). Parasitic capacitances resonate with inductance and may damage switch devices. Thicker printed circuit board (PCB) and reconfigured windings are suggested in this paper to mitigate the parasitic capacitances. A detailed analysis of the parasitic capacitances is performed with a prototype PT. The resonant frequency increased from 1.27 to 1.63 MHz with a 0.4 mm thicker PCB. The reconfigured PT was 1.38 MHz, 0.3 MHz higher than the original PT.

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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.
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