An Efficiency Step-Up Converter with a Low Switch Stress
A novel approach is proposed for a high step-up and high efficiency converter with a low switch stress. The integrated boost-flyback converter uses coupled-inductor techniques to achieve high step-up voltage with low duty ratio, and thus the slope compensation circuit is disregarded. The proposed circuit topology improving high-gain ratio, increasing efficiency, reducing the secondary side of copper loss, and having an active-clamp effect that can reduce the switch stress on power components and have the energy feedback mechanism. Such a method of high efficiency and simple control can reduce cost which makes production size in increasing demand at present. Therefore, designing converters becomes a challenge when stepping up voltage with high efficiency and high power output. This thesis is a design of a high-efficiency step-up converter with low switch stress. The design is simple in that the circuit requires only a pulse width modulation (PWM) signal output. In addition, at cut-off time, the MOSFET generates a spike by way of a circuit sent to the output. This way can achieve the goal of energy recovery, an active-clamp, and can reduce the switch stress of power switch to improve circuit efficiency. Experimental results have confirmed that the proposed converter possesses high step-up, high efficiency, and low switch stress.
K. C. Tseng and T. J. Liang, “Novel high-efficiency step-up converter,” I E E Proceedings-Electric Power Applications, vol. 151, pp. 182–190, March 2004.
K. C. Tseng and T. J. Liang,“Analysis of integrated boost-flyback step-up converter,” IEE Proc.-Electr. Power Appl., vol. 152, no. 2, pp. 217–225, April 2005.
Rong-Jong Wai and Rou-Yong Duan, “High step-up converter with coupled- inductor,” IEEE Transactions on Power Electronics, vol. 20, no.5, pp. 1025-1035, 2005.
Rong-Jong Wai and Rou-Yong Duan, “High Step-Up Coupled-Inductor-Based Converter Using Bi-Direction Energy Transmission,” Power Electronics Specialists Conference, PESC '05. IEEE 36th, June 2005, pp.406-412.
Rong-Jong Wai , Chung-You Lin , Rou-Yong Duan , Yung-Ruei Chang , “High-efficiency DC-DC converter with high voltage gain and reduced switch stress,” IEEE Transactions on Industrial Electronics, vol. 54, no. 1, pp. 354–364, 2007.
Rong-Jong Wai, Chung-You Lin, Rou-Yong Duan and Yung-Ruei Chang, “High-Efficiency Power Conversion System for Kilowatt-Level Stand- Alone Generation Unit with Low Input Voltage,” IEEE Transactions on Industrial Electronics, vol. 55, no. 10, pp. 3702-3714, 2008.
G. Spiazz, P. Mattavelli and A. Costabesssber, “Effect of Parasitic Components in the Integrated Boost-Flyback High Step-Up Converter,” Industrial Electronics, 2009. IECON '09. 35th Annual Conference of IEEE, pp.420–425.
Shih-Kuen Changchien, Tsorng-Juu Liang, Jiann-Fuh Chen and Lung-Sheng Yang, “Novel high step-up DC–DC converter for fuel cell energy conversion system,” IEEE Transactions on Industrial Electronics, vol. 57, no. 6, pp. 2007–2017, 2010.
Dwari, S.; Parsa, L., “An efficient high step-up interleaved DC-DC converter with a common active-clamp,” IEEE Transactions on Power Electronics, vol. 26, no. 1, pp. 66–78, 2011.
Wuhua Li; Yi Zhao, Yan Deng and Xiangning He, “Performance analysis of an interleaved high step-up converter with voltage multiplier cell,” Applied Power Electronics Conference and Exposition (APEC), Twenty-Fifth Annual IEEE, Feb. 2010, pp.1069–1074.
T. Dumrongkittigule, V. Tarateeraseth, and W. Khan-ngern, “A new integrated inductor with balanced switching technique for common mode EMI reduction in high step-up DC-DC converter,” EMC-Zurich 17th International Zurich Symposium on Electromagnetic Compatibility, Feb. 2006, pp.541–544.
Ching-Tsai Pan and Ching-Ming Lai, “A high-efficiency high step-up converter with low switch voltage stress for fuel-cell system applications,” IEEE Transactions on Industrial Electronics, vol. 57, no. 6, pp. 1998–2006,2010.
K. B. Park, G. W. Moon and M.J. Youn,“Non-isolated high step-up boost converter integrated with sepic converter,” IEEE Transactions on Power Electronics, vol. PP, no. 99, pp .1–1, 2010.
Rou Yong Duan and Rong Da Lo, “High-Efficiency Step-Up Power Conditioning for Hybrid Clean-Energy Power-Supply System,” Sixth, Power Electronics Conference, Taiwan, Sep. 2007, pp. 1361–1366.
Copyright (c) 2012 International Journal of Engineering and Technology Innovation
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Submission of a manuscript implies: that the work described has not been published before that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication. Authors can retain copyright in their articles with no restrictions. Also, author can post the final, peer-reviewed manuscript version (postprint) to any repository or website.
Since Jan. 01, 2019, IJETI will publish new articles with Creative Commons Attribution Non-Commercial License, under Creative Commons Attribution Non-Commercial 4.0 International (CC BY-NC 4.0) License.
The Creative Commons Attribution Non-Commercial (CC-BY-NC) License permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.