A New Synchronous Rectification for Phase Shift Modulation LLC Resonant Converter

Yıl 2015, Cilt: 5 Sayı: 4, 1206 - 1211, 01.12.2015

Koji Murata Fujio Kurokawa

Öz

This paper presents a new synchronous rectification (SR) for phase shift modulation (PSM) LLC resonant converters. The SR for PSM LLC resonant converter has difficulty because the secondary current is not in phase with both primary current and the voltage across the transformer. Furthermore, the open-loop SR for phase shift modulation does not perform well because the optimum pulse width is highly dependent on operating conditions such as the duty ratio of primary switches and the load current condition. The proposed SR utilizes the average load current to predict the optimum pulse width of SR so that the detection circuit for SR is not required. Effectiveness of the proposed SR is simulated and experimentally verified. 

Anahtar Kelimeler

LLC resonant converter; phase shift modulation; synchronous rectification; full-bridge; predict

Kaynakça

• B. Yang, F. C. Lee, A. J. Zhang and G. Huang, “LLC resonant converter for front end dc/dc conversion,” Proc. of IEEE Applied Power Electronics Conference and Ex- position, vol. 2, pp. 1108-1112, Mar. 2002.
• B. Lu, W. Liu, Y. Liang, F. C. Lee, J. D. van Wyk, “Op- timal design methodology for LLC resonant converter,” Proc. of IEEE Applied Power Electronics Conference and Exposition, pp. 533-538, Mar. 2006.
• J. Deng, S. Li, S. Hu, C. Chris Mi, and R. Ma, “Design methodology of LLC resonant converters for electric ve- hicle battery chargers,” IEEE Trans. Vehicular Technolo- gy, vol. 63, no. 4, pp. 1581-1592, May 2014.
• F. Musavi, M. Craciun, D. S. Gautam, W. Eberle, and W. G. Dunford, “An LLC resonant dc–dc converter for wide output voltage range battery charging applications, “IEEE Trans. Power Electronics, vol. 28, no. 12, pp. 5437-5445, Dec. 2013.
• Y. S. Dow, H. I. Son, and Hyeoun-Dong Lee, “A study on half bridge LLC resonant converter for battery charger on board,” Proc. of IEEE International Conference on Power Electronics and ECCE Asia, 2011, pp. 2694-2698.
• P. Deck and C. Peter Dick, “Improved modulation strate- gy for a LLC-type resonant converter in a solar applica- tion,” Proc. of IEEE International Exhibition and Confer- ence for Power Electronics, Intelligent Motion, Renewa- ble Energy and Energy Management, pp.772-779, May 2014.
• C. P. Dick, P. Deck and A. Schmidt, “Optimized buck - mode modulation strategy and control of a LLC - type resonant converter in a solar application,” Proc. of IEEE European Conference on Power Electronics and Applica- tions, pp. 1-9, Aug. 2014.
• N. Shafiei, M. Ordonez, M. Cracium, M. Edington and C. Botting, “High power LLC battery charger: wide regula- tion using phase-shift for recovery mode,” Proc. of IEEE Energy Conversion Congress and Exposition, pp. 2037- 2042, Sep. 2014.
• B. McDonald and F. Wang, “LLC performance en- hancements with frequency and phase shift modulation control,” Proc. of IEEE Applied Power Electronics Con- ference and Exposition, pp. 2036-2040, Mar. 2014.
• J.-Hyun Kim, C.-Eun Kim, J.-Bum Lee, Y.-Do Kim, H.- Shin Youn and G.-Woo Moon, “A simple control scheme for improving light load efficiency in a full-bridge LLC resonant converter,” Proc. of IEEE International Power Electronics Conference, pp. 1743-1747, May 2014.
• K. Murata and F. Kurokawa, “A novel interleaved LLC resonant converter with phase shift modulation,” Pro- ceedings of IEEE Energy Conversion Congress and Ex- position, pp. 2051-2056, Sep. 2014.
• S. Liu, R. Ren, W. Meng, X. Zheng, F. Zhang, L. Xiao, “Short-circuit current control strategy for full-bridge LLC converter,” Proc. of IEEE Energy Conversion Congress and Exposition, pp. 3496-3503, Sep. 2014.
• X. Li, H.-Yu Li and G.-Yuan Hu, “Modeling of a fixed- frequency resonant LLC dc/dc converter with capacitive output filter,” Proc. of IEEE Energy Conversion Con- gress and Exposition, pp. 5456-5461, Sep. 2013.
• J. Wang and B. Lu, “Open loop synchronous rectifier d- river for LLC resonant converter,” Proc. of IEEE Applied Power Electronics Conference and Exposition, pp. 2048- 2051, Mar. 2013.
• S. Abe, T. Zaitsu, J. Yamamoto and S. Ueda, “Adaptive driving of synchronous rectifier for LLC converter with- out signal sensing,” Proc. of IEEE Applied Power Elec- tronics Conference and Exposition, pp. 1370-1375, Mar. 2013.
• K. Colak, E. Asa, D. Czarkowski, “Dual Closed Loop Control of LLC Resonant Converter for EV Battery Charger,” Proc. of IEEE International Conference on Re- newable Energy Research and Applications, pp. 811-815, Oct. 2013.
• B.-Chul Kim, K.-Bum Park, C.-Eun Kim, B.-Hee Lee and G.-Woo Moon, “LLC resonant converter with adap- tive link-voltage variation for a high-power-density adapter,” IEEE Trans. on Power Electronics, vol. 25, no. 9, pp. 2248-2252, Sep. 2010.
• M. Kim, “Two-phase interleaved LLC resonant convert- er with phase shedding control,” Proc. of IEEE Interna- tional Power Electronics Conference, pp. 1642-1645, Jun. 2010.
• Z. Hu, Y.-Fei Liu, and P. C. Sen, “Cycle-by-cycle aver- age input current sensing method for LLC resonant to- pologies,” Proc. of IEEE Energy Conversion Congress and Exposition, pp. 167-174, Sep. 2013.
• Z. Hu, Y. Qiu, Y.-Fei Liu, and P. C. Sen, “An interleav- ing and load sharing method for multiphase LLC con- verters,” Proc. of IEEE Applied Power Electronics Con- ference and Exposition, pp. 1421-1428, Mar. 2013.
• Z. Hu, Y. Qiu, L. Wang, and Y.-Fei Liu, “An interleav- ed LLC resonant converter operating at constant switch- ing frequency,” IEEE Trans. on Power Electronics, vol. 29, no. 6, pp. 2931-2943, Jun. 2014.
• Z. Hu, Y.-Fei Liu and P. C. Sen, “Bang–bang charge control for LLC resonant converters,” IEEE Trans. on Power Electronics, vol. 30, no. 2, pp. 1093-1108, Feb. 2015.