An 800mW Fully Integrated Galvanic Isolated Power Transfer System Meeting CISPR 22 Class-B Emission Levels with 6dB Margin

📋 论文概要

本论文提出了一种全集成隔离电源传输系统，输出功率800mW，满足CISPR22 Class-B辐射发射标准并具有6dB裕量，解决了工业自动化中高功率隔离电源全集成化的挑战。

💡 主要创新点

• 实现了800mW全集成隔离电源传输，无需外置变压器，减小了系统体积和成本。
• 通过优化设计使辐射发射满足CISPR22 Class-B标准且留有6dB裕量，解决了高功率隔离电源的EMI难题。

📄 原文摘要

automation systems. Employing galvanic isolation in the transceivers of such networks has become an essential requisite to guarantee safety and better reliability in harsh industrial environment. For industrial transceivers, isolated power levels between 100mW and 1W are required. Transciever size and cost are also constrained in many industrial applications. However, delivering 100s of mW is challenging for fully integrated solutions without bulky external transformers, and it is also important to control radiated emissions at such power levels. In [1,2], different ways of implementing fully integrated isolated power links have been proposed. However, they can only deliver 10s of mW, which limits them to low-power applications,

👥 作者与机构

Wenhui Qin1, Xin Yang2, Shaoyu Ma1, Fang Liu2, Yuanyuan Zhao3,

Tianting Zhao2, Baoxing Chen3 Analog Devices, Shanghai, China Analog Devices, Beijing, China 3 Analog Devices, Wilmington, MA 1 2 Industrial field networks play a key role in industrial