在多元的電源模塊應用迴路系統中，EMI窄頻傳導雜訊讓人困擾，本文提出在原有低通電源濾波器架構上，不改變原低通電源濾波器體積下，修正成具抑制特定雙窄頻傳導雜訊之低通電源濾波器。其抑制的調諧電路主要由被動元件電感、電容與電阻所組成。由LC低通電源濾波器與調諧電路的串聯與並聯方式產生抑制作用的諧振頻率，在不影響原有傳導雜訊抑制作用下，達到對雙窄頻傳導雜訊的抑制。藉由理論分析與搭配模擬和電路實驗結果，證明本文所提出的雙修正型電源濾波器架構於雙窄頻傳導雜訊抑制上，能有效地降低來自雙窄頻傳導雜訊之電磁干擾。

In the multi-power module application field, that the system ground have many noise. The narrow-band conducted noise of EMI is big issue. This thesis proposes the modified LC Low Pass Line Filters that don’t change old filter body and effection old conduction noise that for suppressing dual narrow-band conducted noise. The circuits be composed of induction winding, capacitors and resistors. By combining LC Low Pass Line Filters with the circuits in series and parallel to produce resonance, that dual modified LC Low Pass Line Filters can achieve the dual narrow-band conducted noise suppression. The modified LC Low Pass Line Filters which can effectively reduce for electromagnetic interference from the dual narrow-band conducted noise by theoretical analysis added with circuit simulations and results of measured experiments.

[1]F. Lin and D. Y. Chen, “Reduction of power supply EMI emission by switching frequency modulation,” IEEE Trans. Power Electron., vol. 9, no. 1, pp. 132-137, 1993.
[2]K. K. Tse, H. S. Chung, S. Y. R. Hui, and H. C. So,”A comparative study of carrier-frequency modulation techniques for conducted EMI uppression in PWM converters,” IEEE Trans. Ind. Electron., vol. 49, no. 3, pp. 618-627, 2002.
[3]J. Balcells, A. Santolaria, A. Orlandi, D. Gonzalez, and J. Gago, “EMI reduction in switched power converters using frequency modulation techniques,” IEEE Trans. Electromagn. Compat., vol. 47, no. 3, pp. 569-576, 2005.
[4]M. I. Montrose, Printed Circuit Board Design Techniques for EMC Compliance. New York: IEEE Press, 1996.
[5]M. H. Pong, C. M. Lee, and X. Wu, “EMI due to electric field coupling on PCB”, in Proc. IEEE PESC’98, 1998 , vol. 2, pp.1125-1130.
[6]T. C. Neugebauer and D. J. Perreault, “Filters with inductance cancellation using printed circuit board transformers,” IEEE Trans.Power Electron., vol. 19, no. 3, pp. 591-602, 2004.
[7]S. J. Briggs, D. J. Savignon, P. T. Krein, and M. S. Kim, ”The effect of nonlinear loads on EMI/RFI filters,” IEEE Trans. Ind. Appl., vol. 31, no. 1, pp. 184-189, 1995.
[8]J. He, “An improved energy recovery soft-switching turn-on/turn-off passive boost snubber with peak voltage clamp,” in Proc. IEEE APEC’00, 2000, vol. 2, pp. 699-706.
[9]N. K. Poon, B. M. H. Pong, C. P. Liu, and C. K. Tse, “Essential-coupling-path models for non-contact EMI in switching power converters using lumped circuit elements,” IEEE Trans. Power Electron., vol. 18, no. 2, pp. 686-695, 2003.
[10]M. Shoyama, G. Li, and T. Ninomiya, “Balanced switching converter to reduce common-mode conducted noise,” IEEE Trans. Ind. Electron., vol. 50, no. 6, pp. 1095-1099, 2003.
[11]H. Chung, S. Hui, and K. K. Tse, “Reduction of power converter EMI emission using soft-switching technique,” IEEE Trans. Electromagn. Compat., vol. 40, no. 3, pp. 282-287, 1998.
[12]V. Vlatkovic, D. Borojevic, and F. C. Lee, “Input filter design for power factor correction circuits,” IEEE Trans. Power Electron., pp. 199-205, 1996.
[13]S. Wang, F. C. Lee, W. G. Odendaal, and J. D. V. Wyk, “Improvement of EMI filter performance with parasitic coupling cancellation,” IEEE Trans. Power Electron., vol. 20, no. 5, pp. 1221-1228, 2005.
[14]S. Wang, F. C. Lee, and W. G. Odendaal, “Characterization and parasitic extraction of EMI filters using scattering parameters,” IEEE Trans. Power Electron., vol. 20, no. 2, pp. 502-510, 2005.
[15]R. Chen, J. D. V. Wyk, S. Wang, and W. G. Odendaal, “Improving the characteristics of integrated EMI filters by embedded conductive layers,” IEEE Trans. Power Electron., vol. 20, no. 3, pp. 611-619, 2005.
[16]Y. C. Son and S. K. Sul, “Generalization of active filters for EMI reduction and harmonics compensation,” IEEE Trans. Ind. Appl., vol. 42, no. 2, pp. 545-551, 2006.
[17]S. Wang, R. Chen, J. D. V. Wyk, F. C. Lee, and W. G. Odendaal, “Developing parasitic cancellation technologies to improve EMI filter performance for switching mode power supplies,” IEEE Trans. Electromagn. Compat., vol. 47, no. 4, pp. 921-929, 2005.
[18]A. M. Al-Zamil and D. A. Torrey, “A passive series, active shunt filter for high power applications,＂IEEE Trans. Power Electron., vol. 16, no. 1, pp. 101-109, 2001.
[19]T. Farkas and M. F. Schlecht, “Viability of active EMI filters for utility applications,” IEEE Trans. Power Electron., vol. 9, no. 3, pp. 328-337, 1994.
[20]M. Zhu, D. J. Perreault, V. Caliskan, T. C. Neugebauer, S. Guttowski, and J. G.Kassakian, “Design and evaluation of Feedforward Active ripple filters,” IEEE Trans. Power Electron., vol. 20, no. 2, pp. 276-285, 2005.
[21]謝月女，主動式共模傳導雜訊濾波器應用於切換式電源供應器之研究，國立成功大學電機所碩士論文，2000。
[22]蔡宗憲，適用於市電並聯型變流器之主動式電力濾波器，國立成功大學電機所碩士論文，2013。
[23]羅偉銘，被動式雜訊抑制電路應用於電源轉換器之研究，國立成功大學電機工程學系碩士論文，2005 。
[24]D. Cochrane, D. Y. Chen, and D. Boroyevic, ‘‘Passive cancellation of common-mode noise in power electronic circuits,’’ IEEE Trans.Power Electron., vol. 18, no. 3, pp. 756-763, 2003.
[25]許孟勤，被動式雜訊抑制器應用於返馳式與順向式電源轉換器之研究，國立成功大學電機所碩士論文，2008。
[26]鄭仲佑，修正型EMI濾波器於窄頻傳導雜訊抑制之研究，國立成功大學電機所碩士論文，2009。
[27]戴家豪，改善窄頻傳導雜訊用電源線路濾波器之研究，國立成功大學電機所碩士論文，2009。
[28]Weimin Wu, Yunjie Sun, Zhe Lin, Tianhao Tang, Henry Shu-Hung Chung, and, Frede Blaabjerg, "A New LCL-Filter With In-Series Parallel Resonant Circuit for Single-Phase Grid-Tied Inverter" IEEE Trans. On Industrial Electron., vol. 61, no. 9, pp4640-4644, September 2014.
[29]賴志忠，可調式傳導型EMI濾波器，國立臺北科技大學電機所碩士論文，2013。
[30]林明星，電磁相容理論與實務，全華出版社，2016。
[31]林漢年，電磁相容分析與設計從PI與SI根因探討，滄海出版社， 2017。
[32]梁適安，高頻交換式電源供應器原理與設計，全華出版社，2016。
[33]鄭群星，電腦輔助電子電路設計:使用Spice與OrCAD PSpice，全華出版社，2018
[34]夏少非，電路學，三民出版社，1993。
[35]NE566 Datasheet，Philips Semiconductors Linear Products，1992。
[36]SLF12565 type Datasheet，TDK Corporation，2019。
[37]QXW series Datasheet，Rubycon Corporation，2019。