基于近场测量的低功率隔离变换器电磁干扰设计

Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003. Proceedings. Pub Date : 1900-01-01 DOI:10.1109/CEEM.2003.238190

Chen Pingping, Z. Qian

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引用次数: 1

摘要

在设计低成本、低重量、小尺寸、高性能的电源转换器时，电磁干扰设计是一项具有挑战性的任务。讨论了低功率和高功率变换器在电磁干扰设计上的区别，提出了无源抵消共模电流发射的方法，以减少低功率隔离变换器的传导电磁干扰和辐射电磁干扰。介绍了基于近场测量的电磁干扰设计技术。设计了一种2W反激变换器，并对实验结果进行了验证。

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The EMI design of low power isolated converter based on near field measure

In the design of a low cost, low weight, small size and high performance power converter, EMI design is a challenging task. The paper discuses the EMI design difference between low power and high power converters, and presents methods of passive cancellation of common mode current emission to reduce conducted EMI emissions and radiated emissions in a low power isolated converter. EMI design techniques based on near field measures are presented. A 2W flyback converter has been designed and results are experimentally verified.

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Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003. Proceedings.

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