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http://dx.doi.org/10.7471/ikeee.2020.24.3.803

High Efficiency Resonant Flyback Converter using a Single-Chip Microcontroller  

Jeong, Gang-Youl (Department of Electronic Information Engineering, Soonchunhyang University)
Publication Information
Journal of IKEEE / v.24, no.3, 2020 , pp. 803-813 More about this Journal
Abstract
This paper presents a high efficiency resonant flyback converter using a single-chip microcontroller. The proposed converter primary performs the resonant switching by applying the asymmetrical pulse-width modulation (APWM) to the half-bridge power topology. And the converter secondary uses the diode flyback rectifier as its power topology and operates with the zero current switching (ZCS). Thus the proposed converter achieves high efficiency. The total structure of proposed converter is very simple because it uses a single-chip microcontroller and bootstrap circuit for its control and drive, respectively. First, this paper describes the converter operation according to each operation mode and shows its steady-state analysis. And the software control algorithm and drive circuits operating the proposed converter are explained. Then, the operation characteristics of proposed converter are shown through the experimental results of an implemented prototype based on each explanation.
Keywords
single-chip microcontroller; bootstrap; half-bridge; flyback rectifier; APWM; resonant switching;
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1 R. Watson, F. C. Lee, and G. C. Hua, "Utilization of an active-clamp circuit to achieve soft switching in flyback converters," IEEE Trans. on Power Elec., vol.11, no.1, pp.162-169, 1996. DOI: 10.1109/63.484429   DOI
2 Y. Hakoda, T. Ninomiya, M. Shoyama, and T. Hashimoto, "Effect of clamp capacitor on the stability of active-clamp dc-dc converters," IEEE Power Electronics Specialists Conference, pp. 355-361, 1998. DOI: 10.1109/PESC.1998.701923
3 S. S. Lee, S. K. Han, and G. W. Moon, "A new high efficiency half bridge converter with improved ZVS performance," Jour. of Power Elec., vol.6 no.3, pp.187-194, 2006.
4 S. S. Lee, S. W. Choi, and G. W. Moon, "High efficiency active clamp forward converter with synchronous switch controlled ZVS operation," Jour. of Power Elec., vol.6, no.2, pp.131-138, 2006.
5 X. Xu, A. M. Khambadkone, and R. Oruganti, "An asymmetrical half bridge flyback converter with zero-voltage and zero-current switching," IEEE Industrial Electronics Conference, vol.1 pp.767-772, 2004. DOI: 10.1109/IECON.2004.1433411
6 T. M. Chen and C. L. Chen, "Analysis and design of asymmetrical half bridge flyback converter," IEE Proc.-Electr. Power Appl., vol.149, no.6, pp. 433-440, 2002. DOI: 10.1049/ip-epa:20020525   DOI
7 D. H. Seo, O. J. Lee, and J. S. Park, "Asymmetrical PWM flyback converter," IEEE Power Electronics Specialists Conference, pp.848-852, 2000. DOI: 10.1109/PESC.2000.879925
8 D. H. Yoo, J. M. Lee, and G. Y. Jeong, "Asymmetrical Half-bridge Flyback Converter with Universal Input Voltage Range," 2007 Power Electronics Autumn Conference, pp.124-126, 2007.
9 P. Alou, O. Garcia, J. A. Cobos, J. Uceda, and M. Rascon, "Flyback with active clamp: a suitable topology for low power and very wide input voltage range applications," IEEE Applied Power Electronics Conference, vol.1, pp.242-248, 2002. DOI: 10.1109/APEC.2002.989254
10 C. T. Choi, C. K. Li, and S. K. Kok, "Control of an active clamp discontinuous conduction mode flyback converter," IEEE Power Electronics and Drive Systems Conference, vol. 2, pp.1120-1123, 1992. DOI: 10.1109/PEDS.1999.792865
11 I. D. Jitaru and S. Birca-Galateanu, "Small-signal characterization of the forward-flyback converters with active clamp," IEEE Applied Power Electronics Conference, vol.2, pp.626-632, 1998. DOI: 10.1109/APEC.1998.653965