Operational Amplier Gain-Bandwidth Product Enhancement Technique for Common-mode Active EMI Filter Compensation Circuits

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Published: Sep 4, 2013
DOI: https://doi.org/10.37936/ecti-eec.2013112.170668
Keywords:
Active EMI Filters Common-Mode Emission EMC EMI EMI Filters GBP Op-amps

Main Article Content

Vuttipon Tarateeraseth
Department of Electrical Engineering, Srinakharinwirot University

Abstract

In this paper, the operational amplier (op-amp) gain-bandwidth product (GBP) enhancement technique for common-mode (CM) active EMI lter compensation circuits is proposed. To evaluate the proposed concept, the CM reduction performance of active EMI lters with: voltage canceling, current canceling, and closed-loop techniques, is chosen to be veried. The design procedures of enhanced op-amp GBP of CM active EMI lters are also provided. Finally, the CM reduction performances of the proposed approach are compared and veried experimentally. From the experimental results, it can be concluded that the proposed approach can improve the CM reduction performance of conventional active EMI lters from about 5 dBuV up to 20 dBuV at a certain frequency range.

Article Details

How to Cite
Tarateeraseth, V. (2013). Operational Amplier Gain-Bandwidth Product Enhancement Technique for Common-mode Active EMI Filter Compensation Circuits. ECTI Transactions on Electrical Engineering, Electronics, and Communications, 11(2), 43–50. https://doi.org/10.37936/ecti-eec.2013112.170668
Issue
Vol. 11 No. 2 (2013): Regular Issue
Section
Electrical Power Systems

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References

[1] V. Tarateeraseth, "Systematic Power Line EMI Filter Design for SMPS, Part I: Common-mode and Differential-mode Conducted EMI Generation Mechanisms," IEEE EMC Society Newsletters, no. 231, Fall 2011.

[2] V. Tarateeraseth, "Recent Patents on Conducted Electromagnetic Interference Reduction Techniques in Power Electronics," J. Recent Patents Elect. Eng., vol. 4, no. 2, pp. 99-107, Apr. 2011.

[3] 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.

[4] W. Chen, W. Zhang, X. Yang, Z. Sheng, and Z. Wang, "Characterization of power-line filters and electronic equipment for prediction of conducted emissions," IEEE Trans. Electromagn. Compat.,
vol. 51, no. 3, pp. 683-691, Aug. 2009.

[5] W. Chen, W. Zhang, X. Yang, Z. Sheng, and Z. Wang, "An experimental study of common- and differential-mode active EMI filter compensation characteristics," IEEE Trans. Electromagn. Compat., vol. 51, no. 3, pp. 683-691, Aug. 2009.

[6] E. A. Faulkner, and J. B. Grimbleby, "The effect of amplifier gain-bandwidth product on the performance of active filters," Radio electron. Eng., vol. 43 no. 9, pp. 547 - 552, Sept. 1973.

[7] B. Maundy, S. Gift, and D. Westwick, "A practical near constant bandwidth amplifier," Int. J. Circ. Theor. Appl., vol. 38, no. 6, pp. 577 - 590, Sept. 2010.

[8] S. Pennisi, G. Scotti, and A. Trifiletti, "avoiding the gain-bandwidth trade off in feedback amplifiers," IEEE Trans. Circuits Syst. I, vol. 58, no. 9, pp. 2108 - 2113, Sept. 2011.

[9] P.V.A. Mohan, "Comments on avoiding the gainbandwidth trade off in feedback amplifiers," IEEE Trans. Circuits Syst. I, vol. 58, no. 9, pp. 2114 - 2116, Sept. 2011.

[10] S. Pennisi, G. Scotti, and A. Trifiletti, "Reply to "Comments on avoiding the gain-bandwidth trade off in feedback amplifiers," IEEE Trans. Circuits Syst. I, vol. 58, no. 9, pp. 2117, Sept. 2011.

[11] S. Franco, Design with operational amplifiers and analog integrated circuits 3rd ed., McGraw-Hill, 2001.

[12] D. Sakulhirirak, V. Tarateeraseth, W. Khanngern, and N. Yoothanom, "A new simultaneous conducted electromagnetic interference measuring and testing device," 19th Int. Zurich Symp. Electromagn. Compat., 2008, pp. 606-609.

[13] J. Honda, "Closed loop active EMI filter for reducing common or differential noise based on an error value ," U.S. Patent 6 775 157 B2, Aug 10, 2004.

[14] W. Chen, X. Yang, and Z. Wang, "A Novel hybrid common-mode EMI filter with active impedance multiplication," IEEE Trans. Ind. Electron., vol. 58, no. 5, pp. 1826-1834, May 2011.

[15] V. Tarateeraseth, "Enhancement of operational amplifier gain-bandwidth product used in common-mode active EMI filter compensation circuit," 10th Int. Conf. Elect. Eng./Electron., Comput., Telecommun. Inform. Tech., 2013, pp. 15-17.