A New Approach to Reducing Common Mode Noise in Single MOSFET Switching Converters Using the Hybrid Balance Method
Keywords:
Noise Reduction, Hybrid Balancing, Converter ImbalanceAbstract
Objectives: This research investigates the generation of common-mode and differential-mode noise in MOSFET switching converters and examines the use of a hybrid circuit balancing technique to reduce electromagnetic interference (EMI).
Method: Single-MOSFET switching converters have an inherent characteristic: unbalanced circuits. These converters connect directly to the power source and deliver power directly to the load terminal. This unbalanced configuration creates a common-mode current, that flows through the frame ground. This research proposes a solution using a hybrid balancing technique. This method combines passive and active components to achieve optimal common-mode noise reduction. The effectiveness of this technique is evaluated based on its common-mode noise reduction ratio. The cables transmit energy signals to the load. This unbalanced circuit can create unwanted electromagnetic interference (EMI) due to the common-mode interference mechanism.
Results: The experimental results demonstrate a technique for reducing the root cause of continuous common-mode (CM) noise in switching converters. This technique involves balancing the hybrid circuit based on the common-mode noise reduction ratio. It has been shown to reduce electromagnetic interference (EMI) problems by up to 36.07 decibels.
References
Cheng, W., Huang, Z., Xu, S., & Sun, W. (2017). Novel Hybrid Analytical/Numerical Conducted EMI Model of a Flyback Converter. IEEE Transactions on Electromagnetic Compatibility, 59(2), 488-497. DOI: 10.1109/TEMC.2016.2610467
Fei, C., Yang, Y., Li, Q., & Lee, F. C. (2018). Shielding Technique for Planar Matrix Transformers to Suppress Common-Mode EMI Noise and Improve Efficiency. IEEE Transactions on Industrial Electronics, 65(2), 1263-1272. DOI: 10.1109/TIE.2017.2733473
Henry, W. O. (1989). Noise Reduction Techniques in Electronic Systems (2nd ed.). Wiley-Interscience.
Li, Y., Wang, S., Sheng, H., & Lakshmikanthan, S. (2020). Investigate and Reduce Capacitive Couplings in a Flyback Adapter With a DC-Bus Filter to Reduce EMI. IEEE Transactions on Power Electronics, 35(7), 6963 – 6973. DOI:10.1109/TPEL.2019.2955973
Li, Y., Zhang H., Wang, S., Sheng, H., Chng C. P., & Lakshmikanthan, S. (2018). Investigating Switching Transformers for Common Mode EMI Reduction to Remove Common Mode EMI Filters and Y-Capacitors in Flyback Converters, IEEE Journal of Emerging and Selected Topics in Power Electronics, 6(4), 2287-2301. DOI: 10.1109/JESTPE.2018.2827041
Wang, Z., Wu, Y., Mahmud, M., Yuan, Z., Zhao, Y., & Mantooth, H. A. (2020). Busbar Design and Optimization for Voltage Overshoot Mitigation of A Silicon Carbide High-Power Three-Phase T-Type Inverter. IEEE Transactions on Power Electronics, 36(1), 204-214. DOI: 10.1109/TPEL.2020.2998465
Xie, L., Ruan, X., Zhu, H., & Lo, Y. (2020). Common-Mode voltage cancellation for reducing the common-mode noise in DC-DC converters. IEEE Transactions on Industrial Electronics, 68(5), 3887 – 3897. DOI: 10.1109/TIE.2020.2984438
Xue, L., & Zhang, J. (2018). Highly Efficient Secondary-Resonant Active Clamp Flyback Converter. IEEE Transactions on Industrial Electronics, 65(2), 1235-1243. DOI: 10.1109/TIE.2017.2733451
Yao, J., Li Y., Zhao, H., & Wang, S. (2020). Design of CM Inductor Based on Core Loss for Radiated EMI Reduction in Power Converters. IEEE Applied Power Electronics Conference and Exposition (APEC) 2019 (pp. 2673-2680). DOI: 10.1109/APEC.2019.8721972
Yao, J., Wang, S., & Zhao, H. (2019). Measurement Techniques of Common Mode Currents, Voltages, and Impedances in a Flyback Converter for Radiated EMI Diagnosis. IEEE Transactions on Electromagnetic Compatibility, 61(6), 1997-2005. DOI: 10.1109/TEMC.2019.2953925
Zhang, B., & Wang, S. (2020). A Survey of EMI Research in Power Electronics Systems with Wide Bandgap Semiconductor Devices. IEEE Journal of Emerging and Selected Topics in Power Electronics, 8(1), 626-643.DOI: 10.1109/JESTPE.2019.2953730
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 Journal of Vongchavalitkul university
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
