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Radiated Emission Prediction of SMPS Based on Field-Circuit Co-Simulation
ID：285 View Protection：PUBLIC Updated Time：2020-10-27 17:30:22 Hits：1070 Invited speech

Start Time：2020-11-03 17:50（Asia/Shanghai）

Duration：20min

Session：T Special session » T1Special session

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Abstract
Switching model power supplies (SMPS) are widely used in applications ranging from small consumer electronics to large industrial equipment. Most SMPS employ switching devices that rapidly and repeatedly change states producing high-frequency electromagnetic interference (EMI) due to the large di/dt and dv/dt in the circuit waveforms. The prediction of far-field EMI for SMPS can not only shorten the production cycle and reduce the measurement cost, but also can provide a very valuable reference for the EMC design of SMPS. In this talk a radiation prediction method of SMPS is proposed to predict the noise level of SMPS in the standard measurement of the 3m semi-anechoic chamber, and divides the SMPS into power cables, PCB and shell. The power cable serves as a radiation antenna, the PCB circuit containing the switching device and the digital chip serves as the radiation source, and the shell serves as a measure to eliminate the radiation of the PCB. First, the shell of the SMPS is used to eliminate the influence of the radiation caused by the PCB on the estimation accuracy. Then, the excitation signal of the radiation is obtained through full-circuit simulation. In circuit simulation, intelligent algorithms and other technologies will be employed to establish high-frequency equivalent circuit models of related devices. Finally, the improved antenna model is employed to achieve the final radiation prediction.
Keywords
Speaker
伟 颜
南京师范大学

Dr. Yan received his Bachelor degree from the School of Math and Physics at Nanjing University of Information, Science & Technology at 2008. And he received his Master degree from the School of Electrical and Automation Engineering at Nanjing Normal University at 2011. Afterwards, he started doctoral study and received PhD degree from the School of Physics and Technology at Nanjing Normal University at 2014. In 2014, he joined Nanjing Normal University as a lecturer. From November 2016 to October 2020, he was a postdoctor in the Key Laboratory of Advanced Technology for Small and Medium-sized UAVs, Nanjing University of Aeronautics and Astronautics. From July 2017, he is an associated professor and the Deputy Director of Jiangsu Engineering Key Lab of Electrical Equipment and Electromagnetic Compatibility, Nanjing Normal University. He is also the communication committee member of National Radio Interference Standardization Technology A Subcommittee, member of National Integrated Circuit Electromagnetic Compatibility Standard Working Group, member of Electromagnetic Compatibility Committee of China Power Supply Society and obtain the Jiangsu Innovation & Entrepreneurship Talent Technology Program. His research interests include electromagnetic interference generated by devices and ICs, electrostatic discharge (ESD) immunity, electrical fast transient burst (EFT) immunity, Surge immunity, very fast transient overvoltage (VFTO) mechanism, electromagnetic environment effects (E3) and nanothermal ablation of tumor. He has been co-authored more than 100 publications and obtains 13 national invention patents.

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Important Date

  • Conference Date

    Nov 02

    2020

    to

    Nov 04

    2020

  • Oct 27 2020

    Draft paper submission deadline

  • Nov 03 2020

    Contribution Submission Deadline

  • Nov 04 2020

    Registration deadline

  • Nov 17 2020

    Final Paper Deadline

Sponsored By
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
Organized By
Huazhong University of Science and Technology
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