Advanced SearchSearch Tips
High Frequency Dual Mode Control LLC Resonant Converter with Wide Input Voltage Range
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
High Frequency Dual Mode Control LLC Resonant Converter with Wide Input Voltage Range
Joo, Hyung-Ik; Yang, Jung-Woo; Jo, Kang-Ta; Han, Sang-Kyoo; Sakong, Suk-Chin;
  PDF(new window)
In this paper, a high-frequency dual mode control LLC resonant converter with wide input voltage range is proposed through zero voltage switching (ZVS) under the universal line input voltage and every load conditions. Conventional small power adapter driving should be satisfied with universal line input voltage because it has no power factor correction circuit regulation. The conventional LLC resonant converter for an adapter can reduce the size of transformer in terms of high-frequency driving and ZVS. However, this converter has a disadvantage in terms of design of resonant tank under various input voltages because the frequency modulation range is very wide to satisfy voltage conversion gain. Compared with the conventional one, the proposed LLC converter can be adapted to universal line input voltage and high-frequency driving because it is controlled by pulse width modulation and pulse frequency modulation with control voltage. The validity of the proposed LLC converter is proved through the 60 W prototype.
LLC Resonant converter;High frequency;PWM;ZVS;Dual mode control;
 Cited by
R. Watson, F. C. Lee, and G. C. Hua, "Utilization of an active-clamp circuit to achieve soft switching in flyback converters," IEEE Transactions on Power Electronics, Vol. 11, No. 1, pp. 162-169, 1996. crossref(new window)

W. S. Nam, et al., "Steady-state analysis of LLC resonant converter for optimum design," 2006 Power Electronics Annual Conference, pp. 375-377, 2006.

B. Lu,, et al., "Optimal design methodology for LLC resonant converter," Applied Power Electronics Conference and Exposition, APEC'06. Twenty-First Annual IEEE, 2006.

G. M. Kim, et al., "Development of battery charger for electric vehicle using the LLC resonant converter," Transactions of Korean Institute of Power Electronics, Vol. 18, No. 5, pp. 443-447, Oct. 2013. crossref(new window)

H. Li, et al. "Analysis and design of high frequency asymmetrical half bridge flyback converter," Electrical Machines and Systems, ICEMS 2008. International Conference on IEEE, 2008.

J. S. Cho, J. G. Kwon, and S. Y. Han, "Asymmetrical ZVS PWM flyback converter with synchronous rectification for ink-jet printer," Power Electronics Specialists Conference, PESC'06. 37th IEEE, 2006.

Design, Power Transformer, "Section 4-Power Transformer Design,"

E. Herbert, "User-friendly data for magnetic core loss calculations," Unpublished., Aug. 2008.

G. Y. Jeong and D. H. Yoo, "High efficiency resonant asymmetrical half-bridge flyback converter," Journal of the Korean Institute of IIIuminating and Electrical Installation Engineers, Vol. 24, No. 4, pp. 81-94, 2010. crossref(new window)

H. S. Choi, "Design consideration of half-bridge LLC resonant converter," Journal of Power Electronics, Vol. 7, No. 1, pp. 13-20, 2007.