An Improved Non-isolated LED Converter with Power Factor Correction and Average Current Mode Control

ABSTRACT

A new type of high power LED drivers is proposed by adopting an improved two-stages non-isolated configuration. In order to improve power factor and achieve accurate average current control under universal input voltages ranging from 100 Vrms to 240 Vrms, the power factor correction and average current mode control methods operating in continuous current conduction mode are designed and implemented. With the LUMILEDS emitter type LEDs, a laboratory prototype is built and measured. And from the measured results, it could be concluded that the proposed driver has many better performances such as high power factor, low current harmonic, accurate average current control and switch protection.

A new type of high power LED drivers is proposed by adopting an improved two-stages non-isolated configuration. In order to improve power factor and achieve accurate average current control under universal input voltages ranging from 100 Vrms to 240 Vrms, the power factor correction and average current mode control methods operating in continuous current conduction mode are designed and implemented. With the LUMILEDS emitter type LEDs, a laboratory prototype is built and measured. And from the measured results, it could be concluded that the proposed driver has many better performances such as high power factor, low current harmonic, accurate average current control and switch protection.

Cite this paper

nullR. Xu, H. Li, Y. Li and C. Zhang, "An Improved Non-isolated LED Converter with Power Factor Correction and Average Current Mode Control,"*Circuits and Systems*, Vol. 2 No. 3, 2011, pp. 242-248. doi: 10.4236/cs.2011.23034.

nullR. Xu, H. Li, Y. Li and C. Zhang, "An Improved Non-isolated LED Converter with Power Factor Correction and Average Current Mode Control,"

References

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[7] C. K. Tse, “Circuit Theory of Power Factor Correction in Switching Converters,” International Journal of Circuit Theory and Applications, Vol. 31, No. 2, 2003, pp. 157-198.

[8] H. van der Broeck, G. Sauerlander and M. Wendt, “Power Driver Topologies and Control Schemes for LEDs,” IEEE Applied Power Electronics Conference, Anaheim, 25 February-1 March 2007, pp. 1319-1325.

[9] G. Spiazzi and J. P. Pomilio, “Interaction between EMI Filter and Power Factor Pre-regulators with Average Current Control: Analysis and Design Considerations,” IEEE Transactions on Industrial Electronics, Vol. 46, No. 3, 1999, pp. 577-584. doi:10.1109/41.767065

[10] M. Ogata and T. Nishi, “Gragh-Theoretical Approach to 2-Switch DC-DC Converters,” International Journal of Circuit Theory and Applications, Vol. 33, No. 2, 2005, pp. 161-173. doi:10.1002/cta.311

[11] A. Lazaro, A. Barrado, M. Sanz, V. Salas and E. Olias, “New Power Correction AC-DC Converter with Reduced Storage Capacitor Voltage,” IEEE Transactions on Industrial Electronics, Vol. 54, No. 1, 2007, pp. 384-397. doi:10.1109/TIE.2006.888795

[12] B. Sharifipour, J. S. Hung, P. Liao, L. Huber and M. M. Jovanovic, “Manufacturing and Cost Analysis of Power-Factor-Correction Circuits,” IEEE Applied Power Electronics Conference and Exposition, Anaheim, 15-19 February 1998, pp.490-494. doi:10.1109/APEC.1998.647734

[13] M. Rico-Secades, A. J. Calleja, J. Ribas, E. L. Corominas, J. M. Alonso, J. Cardesin and Garcia-Garcia, “Evaluation of a Low-Cost Permanent Emergency Lighting System based on High-Efficiency LEDs,” IEEE Transactions on Industry Applications, Vol. 41, No. 5, 2005, pp. 1386-1390. doi:10.1109/TIA.2005.853389

[14] Z. Y. Chen, H. L. Yin and P. Li, “Power Quality Problem and New Technology for Its Improvement,” Power System Technology, Vol. 26, 2007, pp. 67-70.

[15] M. X. Han, Y. Yong and H. Liu, “Principle and Realization of Dynamic Voltage Regulator Based on Line Voltage Compensating,” Proceedings of the CSEE, Vol. 23, 2003, pp. 49-53.

[16] S. Wall and R. Jackson, “Fast Controller Design for Single-Phase Power-Factor Correction Systems,” IEEE Transactions on Industrial Electronics, Vol. 44, No. 5, 1997, pp. 654-660. doi:10.1109/41.633465

[17] W. Aloisi and G. Palumbo, “Efficiency Model of Boost DC-DC PWM Converters,” International Journal of Circuit Theory and Applications, Vol. 33, No. 5, 2005, pp. 419-432. doi:10.1002/cta.329

[18] Y. Yueh-Ru and C. Chern-Lin, “Steady-State Analysis and Simulation of a BJT Self-Oscillating ZVS-CV Ballast Driven by a Saturable Transformer,” IEEE Transactions on Industrial Electronics, Vol. 46, No. 2, 1999, pp. 249-260. doi:10.1109/41.753763

[1] J. Y. Tsao, “Solid-State Lighting: Lamps, Chips and Materials for Tomorrow,” IEEE Circuits Devices Magazine, Vol. 20, No. 3, 2004, pp. 28-37. doi:10.1109/MCD.2004.1304539

[2] T. Komine and M. Nakagawa, “Fundamental Analysis for Visible-Light Communication System Using LED Lights,” IEEE Transactions on Consumer Electronics, Vol. 50, No. 1, 2004, pp. 100-107. doi:10.1109/TCE.2004.1277847

[3] R. Mehta, D. Deshpande, K. Kulkarni, S. Sharma and D. Divan, “LEDs—A Competitive Solution for General Lighting Applications,” IEEE Energy 2008, Atlanta, 17-18 November 2008, pp. 1-5. doi:10.1109/ENERGY.2008.4781063

[4] “Electromagnetic Compatibility (EMC), Part 3-2: Limits—Limits for Harmonic Current Emissions (Equipment Input Current ≤ 16 A per Phase),” International Standard IEC 61000-3-2, 2001.

[5] Energy Star Program Requirements for Solid State Lighting Luminaries. USA, 2007.

[6] J. P. Noon, “Designing High-Power Factor Off-Line Power Supplies,” Proceedings of Unitrode Power Supply Design Seminar Manual SEM1500, Texas Instruments, August 2003, pp. 2-6.

[7] C. K. Tse, “Circuit Theory of Power Factor Correction in Switching Converters,” International Journal of Circuit Theory and Applications, Vol. 31, No. 2, 2003, pp. 157-198.

[8] H. van der Broeck, G. Sauerlander and M. Wendt, “Power Driver Topologies and Control Schemes for LEDs,” IEEE Applied Power Electronics Conference, Anaheim, 25 February-1 March 2007, pp. 1319-1325.

[9] G. Spiazzi and J. P. Pomilio, “Interaction between EMI Filter and Power Factor Pre-regulators with Average Current Control: Analysis and Design Considerations,” IEEE Transactions on Industrial Electronics, Vol. 46, No. 3, 1999, pp. 577-584. doi:10.1109/41.767065

[10] M. Ogata and T. Nishi, “Gragh-Theoretical Approach to 2-Switch DC-DC Converters,” International Journal of Circuit Theory and Applications, Vol. 33, No. 2, 2005, pp. 161-173. doi:10.1002/cta.311

[11] A. Lazaro, A. Barrado, M. Sanz, V. Salas and E. Olias, “New Power Correction AC-DC Converter with Reduced Storage Capacitor Voltage,” IEEE Transactions on Industrial Electronics, Vol. 54, No. 1, 2007, pp. 384-397. doi:10.1109/TIE.2006.888795

[12] B. Sharifipour, J. S. Hung, P. Liao, L. Huber and M. M. Jovanovic, “Manufacturing and Cost Analysis of Power-Factor-Correction Circuits,” IEEE Applied Power Electronics Conference and Exposition, Anaheim, 15-19 February 1998, pp.490-494. doi:10.1109/APEC.1998.647734

[13] M. Rico-Secades, A. J. Calleja, J. Ribas, E. L. Corominas, J. M. Alonso, J. Cardesin and Garcia-Garcia, “Evaluation of a Low-Cost Permanent Emergency Lighting System based on High-Efficiency LEDs,” IEEE Transactions on Industry Applications, Vol. 41, No. 5, 2005, pp. 1386-1390. doi:10.1109/TIA.2005.853389

[14] Z. Y. Chen, H. L. Yin and P. Li, “Power Quality Problem and New Technology for Its Improvement,” Power System Technology, Vol. 26, 2007, pp. 67-70.

[15] M. X. Han, Y. Yong and H. Liu, “Principle and Realization of Dynamic Voltage Regulator Based on Line Voltage Compensating,” Proceedings of the CSEE, Vol. 23, 2003, pp. 49-53.

[16] S. Wall and R. Jackson, “Fast Controller Design for Single-Phase Power-Factor Correction Systems,” IEEE Transactions on Industrial Electronics, Vol. 44, No. 5, 1997, pp. 654-660. doi:10.1109/41.633465

[17] W. Aloisi and G. Palumbo, “Efficiency Model of Boost DC-DC PWM Converters,” International Journal of Circuit Theory and Applications, Vol. 33, No. 5, 2005, pp. 419-432. doi:10.1002/cta.329

[18] Y. Yueh-Ru and C. Chern-Lin, “Steady-State Analysis and Simulation of a BJT Self-Oscillating ZVS-CV Ballast Driven by a Saturable Transformer,” IEEE Transactions on Industrial Electronics, Vol. 46, No. 2, 1999, pp. 249-260. doi:10.1109/41.753763