px"; // var refererrurl = document.referrer; // var downloadurl = window.location.href; // var args = "PaperID=" + 37889 + "&RefererUrl=" + refererrurl + "&DownloadUrl=" + downloadurl; // url = url + "?" + args + "&rand=" + RndNum(4); // // $(this).bind('click', function() { ShowTwo(url)}); // } // }); // } // //获取下载pdf注册的cookie // function getcookie() { // var cookieName = "pdfddcookie"; // var cookieValue = null; //返回cookie的value值 // if (document.cookie != null && document.cookie != '') { // var cookies = document.cookie.split(';'); //将获得的所有cookie切割成数组 // for (var i = 0; i < cookies.length; i++) { // var cookie = cookies[i]; //得到某下标的cookies数组 // if (cookie.substring(0, cookieName.length + 2).trim() == cookieName.trim() + "=") {//如果存在该cookie的话就将cookie的值拿出来 // cookieValue = cookie.substring(cookieName.length + 2, cookie.length); // break // } // } // } // if (cookieValue != "" && cookieValue != null) {//如果存在指定的cookie值 // return false; // } // else { // // return true; // } // } // function ShowTwo(webUrl){ // alert("22"); // $.funkyUI({url:webUrl,css:{width:"600",height:"500"}}); // } //window.onload = pdfdownloadjudge;
EPE> Vol.5 No.4B, July 2013
Share This Article:
Cite This Paper >>

A New Zero-Voltage-Switching Push-Pull Converter

Abstract Full-Text HTML Download Download as PDF (Size:352KB) PP. 125-131
DOI: 10.4236/epe.2013.54B024    4,768 Downloads   7,551 Views  
Author(s)    Leave a comment
Yisheng Yuan, Qunfang Wu


School of Electrical and Electronics Engineering, East China Jiaotong University, Nanchang, China.


A soft switching three-transistor push-pull(TTPP)converter is proposed in this paper. The 3rd transistor is inserted in the primary side of a traditional push-pull converter. Two primitive transistors can achieve zero-voltage-switching (ZVS) easily under a wide load range, the 3rd transistor can also realize zero-voltage-switching assisted by leakage inductance. The rated voltage of the 3rd transistor is half of that of the main transistors. The operation theory is explained in detail. The soft-switching realization conditions are derived. An 800 W with 83.3 kHz switching frequency prototype has been built. The experimental result is provided to verify the analysis.


Push Pull Converter; Extra Transistor; Zero-voltage-switching

Cite this paper

Y. Yuan and Q. Wu, "A New Zero-Voltage-Switching Push-Pull Converter," Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 125-131. doi: 10.4236/epe.2013.54B024.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] W. Chen, F. C. Lee, M. M. Jowanovic and J. A. Sabatec, “A Comparative Study of a Class of Full Bridge Ze-ro-voltage-switched PWM Converter,” in Proceedings of IEEE APEC, Dallas, USA, 1995, pp. 893-895.
[2] X. K. Wu, X. G Xie, C. Zhao, Z. M. Qian and R. X. Zhao, “Low Voltage and Current Stress ZVZCS Full Bridge DC–DC Converter Using Center Tapped Rectifier Reset,” IEEE Transactions Industry Electronics, Vol. 55, 2008, pp. 1470 - 1477.
[3] I. H. Cho, K. M. Cho, J. W. Kim and G. W. Moon, “A New Phase-Shifted Full-Bridge Converter with Maximum Duty Operation for Server Power System,” IEEE Transactions on Power Electronics, Vol. 26, 2011, pp. 3491-3500.
[4] Y. Jang and M. M. Jovanovic, “A New PWM ZVS Full-Bridge Converter,” IEEE Transactions on Power Electronics, Vol. 22, 2007, pp. 987-994. doi:10.1109/TPEL.2007.897008
[5] X. K. Wu, X. G. Xie, J. M Zhang, R. X. Zhao and Z. M. Qian, “Soft Switched Full Bridge DC–DC Converter With Reduced Circulating Loss and Filter Requirement, ” IEEE Transactions on Power Electronics, Vol. 22, 2007, pp. 1949-1955. doi:10.1109/TPEL.2007.904211
[6] H. K. Yoon, S. K. Han, J. S. Park, G. W. Moon and M. J. Youn, “Zero-Voltage Switching Two-Transformer Full-Bridge PWM Converter With Lossless Diode-Clamp Rectifier for PDP Sustain Power Module, ” IEEE Transactions on Power Electronics, Vol. 21, 2011, pp. 1243-1252. doi:10.1109/TPEL.2006.880346
[7] B. Yang , F. C. Lee and A. J. Zhang, et al., “LLC Resonant Converter for Front End DC/DC Conversion,” in Proceedings of IEEE APEC, Dallas, USA, 2002, pp. 1108-1112.
[8] I. O. Lee and G. W. Moon, “Analysis and Design of a Three-Level LLC Series Resonant Converter for High- and Wide-Input-Voltage Applications,” IEEE Transactions on Power Electronics, Vol. 27, 2012, pp. 2966-2979. doi:10.1109/TPEL.2011.2174381
[9] X. G. Xie, J. M. Zhang, C. Zhao, Z. Zhao and Z. M. Qian, “Analysis and Optimization of LLC Resonant Converter With a Novel Over-Current Protection Circuit,” IEEE Transactions on Power Electronics, Vol. 22, 2007, pp. 435-443.
[10] K. Y. Yi and G. W. Moon, “Novel Two-Phase Interleaved LLC Series-Resonant Converter Using a Phase of the Resonant Capacitor,” IEEE Transactions on Industrial Electronics, Vol. 56, 2009, pp. 1815-1819. doi:10.1109/TIE.2008.2011310
[11] Y. L. Gu, Z. Y. Lu, L. J. Hang, Z. M. Qian and G. S. Huang, “Three-level LLC series resonant DC/DC converter,” IEEE Transactions on Power Electrionics, Vol. 20, 2005, pp. 781-789. doi:10.1109/TPEL.2005.850921
[12] M. Xu, Y. C. Ren, J. H. Zhou and F. C. Lee, “1-MHz Self-driven ZVS Full-bridge Converter for 48-V Power Pod and DC/DC Brick,” IEEE Transactions on Power Electronics, Vol. 20, 2005, pp. 997-1006.
[13] I. Boonyaroonate and S. Mori. “A New ZVCS Resonant Push-pull DC/DC Converter Topology,” in Proc.IEEE APEC Dallas, USA, 2002, pp. 1097-1100.
[14] Y. S. Yuan, J. Y. Shu and Q. F. Wu, “N-period Resonant Behaviour of a Soft-switching Push-pull Conveter,” in Proceedings of IEEE-ISIE, Hangzhou, China, 2012, pp. 397-401.
[15] M. J. Ryan, W. E. Brumsickle, D. M. Divan and R. D. Lorenz, “A New ZVS LCL-resonant Push-pull DC-DC Converter Topology,” IEEE Transac-tions on Industry Applications, 1998, pp. 1164-1174. doi:10.1109/28.720458
[16] Y. S. Yuan, M. Chen and Z. M. Qian, “A Parallel Front-End LCL Resonant Push-Pull Converter with a Coupled Inductor for Automotive Applications,” in Proceedings of IEEE APEC, Palm Springs, USA, 2010, pp. 1460-1463
[17] H. Ma, H. X. Yu and Y. Y. Yan, “Investigation on LCL Resonant Converter as Current Source,” in Proceedings of CSEE, Vol. 29, No. 9, 2009, pp. 28-34
[18] W. Chen, Z. Y. Lu, X. F. Zhang, et al., “ A Novel ZVS Step-up Push-pull Type Isolated LLC Series Resonant DC-DC Converter for UPS Systems and Its Topology Variations,” in Proceedings of IEEE APEC, Austin, USA, 2008, pp. 1073-1078.
[19] T. F. Wu, J. C. Hung, J. Z. Tsai and Y. M. Chen, “An Active-clamp Push-pull Converter for Battery Sourcing Application,” IEEE transactions on Industry Applications, Vol.44, 2008, pp.196-204.
[20] Y. D. Ma, L. Q. Zhou, X. B. Ruan and Y. G. Yan, “Zero-voltage-switching PWM Push-pull Three-level Converter,” in Proceedings of CSEE, Vol. 26, No. 23, 2006, pp. 36-41.

comments powered by Disqus
EPE Subscription
E-Mail Alert
EPE Most popular papers
Publication Ethics & OA Statement
EPE News
Frequently Asked Questions
Recommend to Peers
Recommend to Library
Contact Us

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.