Conducted EMI mitigation techniques for switch-mode power converters: A survey

IEEE Transactions on Power Electronics

Volumn 25, Issue 9, 2010, Pages 2344-2356

  Mainali, Krishna ^a   Oruganti, Ramesh ^a  

^a NATIONAL UNIVERSITY OF SINGAPORE   (Singapore)

Author keywords

Common mode (CM); differential mode (DM); electromagnetic interference (EMI)

Indexed keywords

COMMONMODE; CONDUCTED ELECTROMAGNETIC INTERFERENCE; CONDUCTED EMI; DC-DC POWER CONVERTER; DETAILED CLASSIFICATION; DIFFERENTIAL MODE; ELECTROMAGNETIC INTERFERENCE; NOISE MITIGATION; SWITCH-MODE POWER CONVERTERS; SWITCH-MODE POWER SUPPLIES;

ELECTROMAGNETIC PULSE; ELECTROMAGNETIC WAVE INTERFERENCE; ELECTROMAGNETISM; MAGNETIC MATERIALS; POWER CONVERTERS; SHAPE MEMORY EFFECT; SIGNAL INTERFERENCE;

DC POWER TRANSMISSION;

EID: 77956892611     PISSN: 08858993     EISSN: None     Source Type: Journal    
DOI: 10.1109/TPEL.2010.2047734     Document Type: Article

References (123)

1. Q. Zhaoming, W. Xin, and L. Zhengyu, "Status of electromagnetic compatibility research in power electronics," in Proc. Int. Power Electron. Motion Control Conf., 2000, pp. 46-57.
2. M. K. W. Wu and C. K. Tse, "A review of EMI problems in switch mode power supply design," J. Elect. Electron. Eng., Australia, Vol. 16, pp. 193-204, 1996.
3. W. Zhang, M. T. Zhang, F. C. Lee, J. Roudet, and E. Clavel, "Conducted EMI analysis of a boost PFC circuit," in Proc. IEEE Appl. Power Electron. Conf., 1997, pp. 223-229.
4. S. Wang, F. C. Lee, and W. G. Odendaal, "Improving the performance of boost PFC EMI filters," in Proc. IEEE Appl. Power Electron. Conf., 2003, pp. 368-374.
5. J. C. Crebier, M. Brunello, and J. P. Ferrieux, "A new method for EMI study in boost derived PFC rectifiers," in Proc. IEEE Power Electron. Spec. Conf., 1999, pp. 855-860.
6. M. Nave, Power Line Filter Design for Switched-Mode Power Supplies. New York: Springer-Verlag, 1991.
7. D. M. Mitchell, "Power line filter design considerations for DC-DC converters," IEEE Ind. Appl. Mag., vol. 5, no. 6, pp. 16-26, Nov./Dec. 1999.
8. T. Ninomiya, M. Nakahara, H. Tajima, and K. Harada, "Backward-noise generation in forward DC-to-DC converters," IEEE Trans. Power Electron., vol. PE-2, no. 3, pp. 208-217, Jul. 1987.
9. F. Lin, "Reduction of power supply EMI emissionbyswitching frequency modulation," M.S. thesis, Virginia Polytechnic Institute and State University, Blacksburg, VA, 1992.
10. J. Paramesh and A. von Jouanne, "Use of sigma-delta modulation to control EMI from switch-mode power supplies," IEEE Trans. Ind. Electron., vol. 48, no. 1, pp. 111-117, Feb. 2001.
11. T. Ninomiya and K. Harada, "Common-mode noise generation in a DC-to-DC converter," IEEE Trans. Aerosp. Electron. Syst., vol. AES-16, no. 2, pp. 130-137, Mar. 1980.
12. M. J. Schutten, "EMI causes, measurement, and reduction techniques for switch-mode power converters," in Proc. IEEE Appl. Power Electron. Conf. Prof. Educ. Semin., 2006.
13. L. Yang, B. Lu, W. Dong, Z. Lu, M. Xu, F. C. Lee, and W. G. Odendaal, "Modeling and characterization of a 1 KW CCM PFC converter for conducted EMI prediction," in Proc. IEEE Appl. Power Electron. Conf., 2004, pp. 763-769.
14. K. Mainali and R. Oruganti, "Simple analytical models to predict conducted EMI noise in a power electronic converter," in Proc. IEEE Ind. Electron. Soc. Conf., 2007, pp. 1930-1936.
15. J. Fluke, Controlling Conducted Emissions by Design. New York: Springer-Verlag, 1991.
16. C. R. Paul, Introduction to Electromagnetic Compatibility. New York: Wiley, 2006.
17. H. Ott, Noise Reduction Techniques in Electronic Systems. New York: Wiley, 1988.
18. V. P. Kodali, Engineering Electromagnetic Compatibility: Principles, Measurements, and Technologies. Piscataway, NJ: IEEE Press, 1996.
19. K. L. Kaiser, Electromagnetic Compatibility Handbook. Boca Raton, FL: CRC Press, 2004.
20. M. I. Montrose and E. M. Nakauchi, Testing for EMC Compliance: Approaches and Techniques. New York/Piscataway, NJ: Wiley-IEEE Press, 2004.
21. Industrial, Scientific, and Medical Radio-Frequency Equipment - Electromagnetic Disturbance Characteristics - Limits and Methods of Measurement, CISPR Publication 11: 2003+A1, IEC, 2004.
22. C. R. Paul and K. B. Hardin, "Diagnosis and reduction of conducted noise emissions," IEEE Trans. Electromagn. Compat., vol. 30, no. 4, pp. 553-560, Nov. 1988.
23. M. C. Caponet and F. Profumo, "Devices for the separation of the common and differential mode noise: Design and realization," in Proc. IEEE Appl. Power Electron. Conf., 2002, pp. 100-105.
24. T. Guo, D. Y. Chen, and F. C. Lee, "Separation of the common-mode- and differential-mode-conducted EMI noise," IEEE Trans. Power Electron., vol. 11, no. 3, pp. 480-488, May 1996.
25. Mini-Circuits Datasheet. Power splitters/Combiners-2 Way - 180° [Online]. Available: www.minicircuits.com
26. Mini-Circuits Datasheet. Power Splitters/Combiners-2 Way - 0° [Online]. Available: www.minicircuits.com
27. Y. K. Lo, H. J. Chiu, and T. H. Song, "A software-based CM and DM measurement system for the conducted EMI," IEEE Trans. Ind. Electron., vol. 47, no. 4, pp. 977-978, Aug. 2000.
28. R. L. Ozenbaugh, EMI Filter Design. Boca Raton, FL: CRC Press, 2000.
29. R. A. Southwick, "Impedance characteristics of single-phase power-lines," in Proc. IEEE EMC Symp., 1973, pp. 241-252.
30. F. Y. Shih, D. Y. Chen, Y. P. Wu, and Y. T. Chen, "A procedure for designing EMI filters for AC line applications," IEEE Trans. Power Electron., vol. 11, no. 1, pp. 170-181, Jan. 1996.
31. B. Mammano and B. Carsten, "Understanding and optimizing electromagnetic compatibility in switchmode power supplies," in Proc. Uni-trode (TI) Power Supply Design Semin. Topics, 2002, SEM1500.
32. L. M. Schneider, "Noise source equivalent circuit model for off-line converters and its use in input filter design," in Proc. Powercon 10, 1983, pp. 1-11, Paper C-1.
33. D. Zhang, "Switching mode power supply noise source impedance measurement and EMI filter characterization," M.S. thesis, Virginia Polytechnic Institute and State University, Blacksburg, VA, 1996.
34. K. Y. See and J. Deng, "Measurement of noise source impedance of SMPS using a two probes approach," IEEE Trans. Power Electron., vol. 19, no. 3, pp. 862-868, May 2004.
35. S. Ye, W. Eberle, and Y. F. Liu, "A novel EMI filter design method for switching power supplies," IEEE Trans. Power Electron., vol. 19, no. 6, pp. 1668-1678, Nov. 2004.
36. A. Nagel and R. W. De Doncker, "Systematic design of EMI-filters for power converters," in Proc. IEEE Ind. Appl. Conf., 2000, pp. 2523-2525.
37. I. Cadirci, B. Saka, and Y. Eristiren, "Practical EMI-filter-design procedure for high-power high-frequency SMPS according to MIL-STD 461," in Proc. IEE Electr. Power Appl., 2005, vol. 152, pp. 775-782.
38. V. Vlatkovic, D. Borojevic, and F. C. Lee, "Input filter design for power factor correction circuits," IEEE Trans. Power Electron., vol. 11, no. 1, pp. 199-205, Jan. 1996.
39. T. C. Neugebauer and D. J. Perreault, "Parasitic capacitance cancellation in filter inductors," IEEE Trans. Power Electron., vol. 21, no. 1, pp. 282-288, Jan. 2006.
40. S. Wang, F. C. Lee, and W. G. Odendaal, "Cancellation of capacitor parasitic parameters for noise reduction application," IEEE Trans. Power Electron., vol. 21, no. 4, pp. 1125-1132, Jul. 2006.
41. S. Wang, "Characterization and cancellation of high-frequency parasitics for EMI filters and noise separators in power electronics applications," Ph.D. dissertation, Virginia Polytechnic Institute and State University, Blacksburg, VA, 2005.
42. B. Pierquet, T. Neugebauer, and D. Perreault, "Inductance compensation of multiple capacitors with application to common- and differential-mode filters," IEEE Trans. Power Electron., vol. 21, no. 6, pp. 1815-1824, Nov. 2006. (Pubitemid 44824228)
43. S. Wang, F. C. Lee, and J. D. van Wyk, "A study of integration of parasitic cancellation techniques for EMI filter design with discrete components," IEEE Trans. Power Electron., vol. 23, no. 6, pp. 3094-3102, Nov. 2008.
44. F. Broydé, "Dissipative filters for power electronics applications," in Proc. Int. Zurich Symp. EMC, 1987, pp. 393-398.
45. F. Broydé, "Dissipative low-pass filter," U.S. Patent 4 794 353, Dec. 27, 1988.
46. R. W. Erickson, Fundamentals of Power Electronics. New York: Springer-Verlag, 1997.
47. B. Choi and B. Cho, "Intermediate line filter design to meet both impedance compatibility and EMI specifications," IEEE Trans. Power Electron., vol. 10, no. 5, pp. 583-588, Sep. 1995.
48. B. Choi, D. Kim, D. Lee, S. Choi, and J. Sun, "Analysis of input filter interactions in switching power converters," IEEE Trans. Power Electron., vol. 22, no. 2, pp. 452-460, Mar. 2007.
49. L. Tihanyi, Electromagnetic Compatibility in Power Electronics. Piscataway, NJ: IEEE Press, 1995.
50. S. Qu and D. Chen, "Mixed-mode EMI noise and its implications to filter design in offline switching power supplies," IEEE Trans. Power Electron., vol. 17, no. 4, pp. 502-507, Jul. 2002.
51. M. Jin, M. Weiming, P. Qijun, K. Jun, Z. Lei, and Z. Zhihua, "Identification of essential coupling path models for conducted EMI prediction in switching power converters," IEEE Trans. Power Electron., vol. 21, no. 2, pp. 1795-1803, Mar. 2006.
52. R. Chen, J. D. van Wyk, S. Wang, and W. G. Odendaal, "Technologies and characteristics of integrated EMI filters for switch mode power supplies," in Proc. IEEE Power Electron. Spec. Conf., 2004, vol. 6, pp. 4873-4880.
53. R. Chen, J. D. van Wyk, S. Wang, and W. G. Odendaal, "Planar electromagnetic integration technologies for integrated EMI filters," in Proc. IEEE IAS Annu. Meeting Ind. Appl. Conf., 2003, pp. 1582-1588.
54. L. E. LaWhite and M. F. Schlecht, "Active filters for 1 MHz power circuits with strict input/output ripple requirements," in Proc. IEEE Power Electron. Spec. Conf., 1986, pp. 255-263.
55. N. K. Poon, J. C. P. Liu, C. K. Tse, and M. H. Pong, "Techniques for input ripple current cancellation: Classification and implementation," IEEE Trans. Power Electron., vol. 15, no. 6, pp. 1144-1152, Nov. 2000.
56. J. Walker, "Designing practical and effective EMI filters," in Proc. Pow-ercon 11, 1984, pp. 1-8, Paper I-3.
57. L. E. LaWhite and M. F. Schlecht, "Design of active ripple filters for power circuits operating in the 1-10 MHz range," IEEE Trans. Power Electron., vol. 3, no. 3, pp. 310-317, Jul. 1988.
58. 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, May 1994.
59. K. Mainali and R. Oruganti, "Design of a current-sense voltage-feedback common mode EMI filter for an off-line power converter," in Proc. IEEE Power Electron. Spec. Conf., 2008, pp. 1632-1638.
60. P. Cantillon-Murphy, T. C. Neugebauer, C. Brasca, and D. J. Perreault, "An active ripple filtering technique for improving common-mode inductor performance," IEEE Power Electron. Lett., vol. 2, no. 2, pp. 45-50, Jun. 2004.
61. W. Chen, X. Yang, and Z. Wang, "An active EMI filtering technique for improving passive filter low-frequency performance," IEEE Trans. Electromagn. Compat., vol. 48, no. 1, pp. 172-177, Feb. 2006.
62. D. C. Hamill, "An efficient active ripple filter for use in DC-DC conversion," IEEE Trans. Aerosp. Electron. Syst., vol. 32, no. 3, pp. 1077-1084, Jul. 1996.
63. A. C. Chow and D. J. Perreault, "Design and evaluation of a hybrid passive/active ripple filter with voltage injection," IEEE Trans. Aerosp. Electron. Syst., vol. 39, no. 2, pp. 471-480, Apr. 2003.
64. A. Nasiri, "Different topologies of active EMI/ripple filters for automotive DC/DC converters," in Proc. IEEE Conf. Veh. Power Propulsion, 2005, pp. 168-173.
65. J. Dumas, B. Lanoue, and B. Tahhan, "Active analog powerfilters provide solutions for EMC and EMI," in Proc. IEEE Applied Power Electron. Conf., 2004, pp. 675-680.
66. J. Biela, A. Wirthmueller, R. Waespe, M. L. Heldwein, K. Raggl, and J. W. Kolar, "Passive and active hybrid integrated EMI filters," IEEE Trans. Power Electron., vol. 24, no. 5, pp. 1340-1349, May 2009.
67. S. Ogasawara, H. Ayano, and H. Akagi, "An active circuit for cancellation of common-mode voltage generated by a PWM inverter," IEEE Trans. Power Electron., vol. 13, no. 5, pp. 835-841, Sep. 1998. (Pubitemid 128747806)
68. Y. C. Son and S. K. Sul, "A new active common-mode EMI filter for PWM inverter," IEEE Trans. Power Electron., vol. 18, no. 6, pp. 1309-1314, Nov. 2003.
69. 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, Mar./Apr. 2006.
70. W. Xin, N. K. Poon, C. M. Lee, M. H. Pong, and Z. Qian, "A study of common mode noise in switching power supply from a current balancing viewpoint," in Proc. IEEE Int. Conf. Power Electron. Drive Syst., 1999, pp. 621-625.
71. P. Zumel, O. Garcia, J. A. Cobos, and J. Uceda, "EMI reduction by interleaving of power converters," in Proc. IEEE Appl. Power Electron. Conf., 2004, pp. 688-694.
72. P. Zumel, O. Garcia, J. A. Cobos, and J. Uceda, "Exploring interleaved converters as an EMI reduction technique in power converters," in Proc. IEEE Conf. of Ind. Electron. Soc., 2002, pp. 1219-1224.
73. P. Zumel, O. Garcia, J. A. Oliver, and J. A. Cobos, "Differential- mode EMI reduction in a multiphase DCM flyback converter," IEEE Trans. Power Electron., vol. 24, no. 8, pp. 2013-2020, Aug. 2009.
74. C. Wang, M. Xu, F. C. Lee, and B. Lu, "EMI study for the interleaved multi-channel PFC," in Proc. IEEE Power Electron. Spec. Conf., 2007, pp. 1336-1342.
75. W. Xin, M. H. Pong, Z. Y. Lu, and Z. M. Qian, "Novel boost PFC with low common mode EMI: Modeling and design," in Proc. IEEE Applied Power Electron. Conf., 2000, pp. 178-181.
76. 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, May 2003.
77. S. Wang and F. C. Lee, "Common-mode noise reduction for power factor correction circuit with parasitic capacitance cancellation," IEEE Trans. Electromagn. Compat., vol. 49, no. 3, pp. 537-542, Aug. 2007.
78. S. Senini and P. J. Wolfs, "The coupled inductor filter: Analysis and design for AC systems," IEEE Trans. Ind. Electron., vol. 45, no. 4, pp. 574-578, Aug. 1998.
79. J. W. Kolar, H. Sree, N. Mohan, and F. C. Zach, "Novel aspects of an application of 'zero'-ripple techniques to basic converter topologies," in Proc. IEEE Power Electron. Spec. Conf., 1997, vol. 1, pp. 796-803.
80. D. C. Hamill and P. T. Krein, "A 'zero' ripple technique applicable to any DC converter," in Proc. IEEE Power Electron. Spec. Conf., 1999, pp. 1165-1171.
81. D. K. W. Cheng, X. C. Liu, and Y. S. Lee, "A new improved boost converter with ripple free input current using coupled inductors," in Proc. Int. Conf. Power Electron. Variable Speed Drives, 1998, pp. 592-599.
82. J. Wang, W. G. Dunford, and K. Mauch, "Analysis of a ripple-free input-current boost converter with discontinuous conduction characteristics, " IEEE Trans. Power Electron., vol. 12, no. 4, pp. 684-694, Jul. 1997.
83. M. Albach, "How to avoid filters in off-line power supplies," in Proc. Eur. Conf. Power Electron. Appl., 1993, pp. 52-57.
84. 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, Dec. 2003.
85. S. Wang, P. Kong, and F. C. Lee, "Common mode noise reduction for boost converters using general balance technique," IEEE Trans. Power Electron., vol. 22, no. 4, pp. 1410-1416, Jul. 2007.
86. P. Kong, S. Wang, F. C. Lee, and C. Wang, "Common-mode EMI study and reduction technique for the interleaved multichannel PFC converter," IEEE Trans. Power Electron., vol. 23, no. 5, pp. 2576-2584, Sep. 2008.
87. P. Kong, S. Wang, and F. C. Lee, "Common mode EMI noise suppression for bridgeless PFC converters," IEEE Trans. Power Electron., vol. 23, no. 1, pp. 291-297, Jan. 2008.
88. D. F. Knurek, "Reducing EMI in switch mode power supplies," in Proc. Int. Telecomm. Energy Conf., 1998, pp. 411-420.
89. A. J. Sinclair, J. A. Ferreira, and J. D. Van Wyk, "A systematic study of EMI reduction by physical converter layout and suppressive circuits," in Proc. Int. Conf. on Ind. Electron., Control, Instrum., 1993, pp. 1059-1064.
90. L. Rossetto, S. Buso, and G. Spiazzi, "Conducted EMI issues in a 600-W single-phase boost PFC design," IEEE Trans. Ind. Appl., vol. 36, no. 2, pp. 578-585, Mar./Apr. 2000.
91. H. W. Whittington, Switched Mode Power Supplies: Design and Construction. New York: Wiley, 1996.
92. G. Spiazzi, S. Buso, M. Citron, M. Corradin, and R. Pierobon, "Performance evaluation of a Schottky SiC power diode in a boost PFC application," IEEE Trans. Power Electron., vol. 18, no. 6, pp. 1249-1253, Nov. 2003.
93. S. S. Shekhawat, P. M. Shenoy, and R. H. Randall, "Stealth diode and SMPS MOSFET help in controlling EMI in power supplies," Conformity Mag., Sep. 2002, pp. 12-17.
94. L. Rossetto, G. Spiazzi, and P. Tenti, "Boost PFC with 100-Hz switching frequency providing output voltage stabilization and compliance with EMC standards," IEEE Trans. Ind. Appl., vol. 36, no. 1, pp. 188-193, Jan./Feb. 2000.
95. M. Albach, "Conducted interference voltage of ac-dc converters," in Proc. IEEE Power Electron. Spec. Conf., 1986, pp. 203-212.
96. 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, Jan. 1994.
97. M. Vilathgamuwa, J. Deng, and K. J. Tseng, "EMI suppression with switching frequency modulated DC-DC converters," IEEE Ind. Appl. Mag., vol. 5, no. 6, pp. 27-33, Nov./Dec. 1999.
98. 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, Aug. 2005.
99. K. K. Tse, H. S. H. Chung, S. Y. Huo, and H. C. So, "Analysis and spectral characteristics of a spread-spectrum technique for conducted EMI suppression," IEEE Trans. Power Electron., vol. 15, no. 2, pp. 399-410, Mar. 2000.
100. F. Mihalic and D. Kos, "Reduced conductive EMI in switched-mode DC-DC power converters without EMI filters: PWM versus randomized PWM," IEEE Trans. Power Electron., vol. 21, no. 6, pp. 1783-1794, Nov. 2006.
101. M. J. Nave, "The effect of duty cycle on SMPS common mode emissions: Theory and experiment," in Proc. IEEE Appl. Power Electron. Conf., 1989, pp. 3-12.
102. J. Mahdavi, M. Tabandeh, and A. K. Shahriari, "Comparison of conducted RFI emission from different unity power factor AC/AC converters," in Proc. IEEE Power Electron. Spec. Conf., 1996, pp. 1979-1985.
103. H. Li, W. K. S. Tang, Z. Li, and W. A. Halang, "A chaotic peak current-mode boost converter for EMI reduction and ripple suppression," IEEE Trans. Circuits Syst. II: Exp. Briefs, vol. 55, no. 8, pp. 763-767, Aug. 2008.
104. J. H. B. Deane and D. C. Hamill, "Improvement of power supply EMC by chaos," Electron. Lett., vol. 32, no. 12, p. 1046, Oct. 1996.
105. B. Chuang, W. Jingmei, J. Kelin, and W. Chang, "EMI reduction by chaos in the forward converter," in Proc. Int. Conf. Electron. Meas. Instrum., 2007, pp. 4-77.
106. S. Banerjee, D. Kastha, and S. SenGupta, "Minimising EMI problems with chaos," in Proc. Int. Conf. Electromagn. Interference Compat., 2002, pp. 162-167.
107. H. Li, B. Zhang, Z. Li, W. A. Halang, and G. Chen, "Controlling DC-DC converters by chaos-based pulse width modulation to reduce EMI," Chaos, Solitons Fractals, vol. 42, pp. 1378-1387, Nov. 2009.
108. R. Mukherjee, S. Nandi, and S. Banerjee, "Reduction in spectral peaks of DC-DC converters using chaos-modulated clock," in Proc. IEEE Int. Symp. Circuits Syst., 2005, pp. 3367-3370.
109. R. Mukherjee, A. Patra, and S. Banerjee, "Chaos-modulated ramp IC for EMI reduction in PWM buck converters design and analysis of critical issues," in Proc. Int. Conf. VLSI Design, 2008, pp. 305-310.
110. D. E. Quevedo and G. C. Goodwin, "Control of EMI from switch-mode power supplies via multi-step optimization," in Proc. Amer. Contr. Conf., 2004, pp. 390-395.
111. D. A. Stone and B. Chambers, "Effect of spread-spectrum modulation of switched mode power converter PWM carrier frequencies on conducted EMI," Electron. Lett., vol. 31, no. 10, pp. 769-770, May 1995.
112. Y. F. Zhang, L. Yang, and C. Q. Lee, "EMI reduction of power supplies by bi-frequency modulation," in Proc. IEEE Appl. Power Electron. Conf., 1994, pp. 601-607.
113. A. C. Wang and S. R. Sanders, "Programmed pulsewidth modulated waveforms for electromagnetic interference mitigation in DC-DC converters," IEEE Trans. Power Electron., vol. 8, no. 4, pp. 596-605, Oct. 1993.
114. T. Ninomiya, N. Matsumoto, K. Harada, and R. Hiramatsu, "Noise suppression by magnetic snubbers in switching power converters," in Proc. IEEE Power Electron. Spec. Conf., 1988, vol. 2, pp. 1133-1140.
115. M. H. Rashid, Power Electronics Handbook. New York: Academic, 2007.
116. A. Consoli, S. Musumeci, G. Oriti, and A. Testa, "An innovative EMI reduction design technique in power converters," IEEE Trans. Electro-magn. Compat., vol. 38, no. 4, pp. 567-575, Nov. 1996.
117. H. Chung, S. Y. R. Hui, and K. K. Tse, "Reduction of power converter EMI emission using soft-switching technique," IEEE Trans. Electro-magn. Compat., vol. 40, no. 3, pp. 282-287, Aug. 1998.
118. M. van der Berg and J. A. Ferreira, "A family of low EMI unity power factor converters," IEEE Trans. Power Electron., vol. 13, no. 3, pp. 547-555, May 1998.
119. D. Zhang, D. Y. Chen, and F. C. Lee, "An experimental comparison of conducted EMI emissions between a zero-voltage transition circuit and a hard switching circuit," in Proc. IEEE Power Electron. Spec. Conf., 1996, pp. 1992-1997.
120. P. Caldeira, R. Liu, D. Dalal, and W. J. Gu, "Comparison of EMI performance of PWM and resonant power converters," in Proc. IEEE Power Electron. Spec. Conf., 1993, pp. 134-140.
121. M. Joshi and V. Agarwal, "Design optimization of ZVS and ZCS quasi-resonant converters for EMI reduction," in Proc. Int. Conf. Electromagn. Interference Compat., 1997, pp. 407-413.
122. L. Feng, W. Chen, H. Chen, and Z. Qian, "Study on the conducted EMI due to radiated coupling in SMPS," in IEEE Appl. Power Electron. Conf., 2006, pp. 1161-1164.
123. K. Mainali, R. Oruganti, K. Viswanathan, and S. P. Ng, "A metric for evaluating the EMI spectra of power converters," IEEE Trans. Power Electron., vol. 23, no. 4, pp. 2075-2081, Jul. 2008.