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Single-Stage Single-Switch AC-DC LED Driver with High Power Factor


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DOI: https://doi.org/10.15866/iree.v12i1.11098

Abstract


A single-stage single-switch AC-DC LED driver with high power factor is proposed to overcome the drawbacks of the conventional boost-flyback PFC LED driver. In the proposed LED driver, the boost PFC converter with discontinuous conduction mode (DCM) is adopted to achieve high power factor and the modified flyback DC-DC converter with dual input is integrated to provide electrical isolation and the regulated output voltage. In order to divide input of DC-DC module (dc-link capacitor), the transformer with dual-primary winding is used. Moreover, the leakage inductor currents are absorbed by the dc-link capacitors through a snubber diode and the maximum voltage stress is limited to double DC-link voltage. Therefore, there are virtually no conduction losses by snubber circuit. In additional, some input power is directly transferred to the load and the remaining power is stored in dc-link capacitor. Hence, the total power efficiency is improved. The presented theoretical analysis is verified by prototype of 50kHz and 80W converter.
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Keywords


LED Driver; AC-DC Converter; Power Factor Correction (PFC); Boost-Flyback Converter; Lossless Snubber

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References


Lin, B.-R., Cheng, P.-J., Interleaved Bridgeless AC/DC Converter with High Power Factor, (2012) International Review of Electrical Engineering (IREE), 7 (5), pp. 5257-5264.

Bodur, H., Cetin, S., An Improved High Power Factor-Soft Switched AC-DC Converter, (2012) International Review of Electrical Engineering (IREE), 7 (5), pp. 5299-5309.

Liao, Y.-H., Cheng, Y.-J., Yang, L.-C., A Novel High-Efficiency High-Power-Factor Single-Stage Converter for Small-Scale Wind Power Generation System, (2013) International Review of Electrical Engineering (IREE), 8 (6), pp. 1663-1670.

Lin, B.-R., Pan, J.-Y., Interleaved Single-Stage PFC Converter with ZVS Turn-On, (2011) International Review of Electrical Engineering (IREE), 6 (5), pp. 2152-2159.

H. S. Athab, D. D.-C. Lu, and K. Ramar, “A single-switch AC/DC flyback converter using a CCM/DCM quasi-active power factor correction front-end,” IEEE Trans. Ind. Electron., vol. 59, no. 3, pp. 1517–1526, Mar. 2012.
http://dx.doi.org/10.1109/tie.2011.2158771

D. D.-C. Lu, H. H.-C. Iu, and V. Pjevalica, “A single-stage AC/DC converter with high power factor, regulated bus voltage, and output voltage,” IEEE Trans. Power Electron., vol. 23, no. 1, pp. 218–228, Jan. 2008.
http://dx.doi.org/10.1109/tpel.2007.911787

H. S. Athab, D. D.-C. Lu, and K. Ramar, “A single-switch AC/DC flyback converter using a CCM/DCM quasi-active power factor correction front-end,” IEEE Trans. Ind. Electron., vol. 59, no. 3, pp. 1517–1526, Mar. 2012.
http://dx.doi.org/10.1109/tie.2011.2158771

C. Qiao, and K. M. Smedley, “A topology survey of single-stage power factor corrector with a boost type input-current-shaper,” IEEE Trans. Power Electron., vol. 16, no. 3, pp. 360–368, May 2001.
http://dx.doi.org/10.1109/63.923768

J.-J. Lee, J.-M. Kwon, E.-H. Kim, W.-Y. Choi, and B.-H. Kwon, “Single-stage single-switch PFC flyback converter using a synchronous rectifier,” IEEE Trans. Ind. Electron., vol. 55, no. 3, pp. 1352–1365, Mar. 2008.
http://dx.doi.org/10.1109/tie.2007.911908

Y. Jang, D. L. Dillman, and M. M. Jovanovic, “A new soft-switched PFC boost rectifier with integrated flyback converter for stand-by power,” IEEE Trans. Power Electron., vol. 21, no. 1, pp. 66–72, Jan. 2006.
http://dx.doi.org/10.1109/tpel.2005.861123

Y.-C. Li and C.-L. Chen, “A novel primary-side regulation scheme for single-stage high-power-factor AC–DC LED driving circuit,” IEEE Trans. Ind. Electron., vol. 60, no. 11, pp. 4979–4986, Nov. 2013.
http://dx.doi.org/10.1109/tie.2012.2224080

J.-Y. Lee, “Single-stage AC/DC converter with input-current dead-zone control for wide input voltage ranges,” IEEE Trans. Ind. Electron., vol. 54, no. 2, pp. 724–732, April 2007.
http://dx.doi.org/10.1109/tie.2007.891765

M. H. L. Chow, Y.-S. Lee, and C. K. Tse, “Single-stage single-switch isolated PFC regulator with unity power factor, fast transient response, and low-voltage stress,” IEEE Trans. Power Electron., vol. 15, no. 1, pp. 156–163, Jan. 2000.
http://dx.doi.org/10.1109/63.817373

L. Huber, and M. M. Jovanovic, “Single-stage single-switch input-current-shaping technique with reduced switching loss,” IEEE Trans. Power Electron., vol. 15, no. 4, pp. 681–687, July 2000.
http://dx.doi.org/10.1109/63.849038

Lin, B.-R., Chien, C.-C., Implementation of an Interleaved AC/DC Converter with High Power Factor and High Voltage Conversion Ratio, (2011) International Review of Electrical Engineering (IREE), 6 (7), pp. 2902-2909.

A. Abramovitz, T. Cheng, and K. Smedley, “Analysis and design of forward converter with energy regenerative snubber,” IEEE Trans. Power Electron., vol. 25, no. 3, pp. 667–676, Mar. 2010.
http://dx.doi.org/10.1109/tpel.2009.2033275

A. Abramovitz, T. Cheng, and K. Smedley, “State-plane analysis of regenerative snubber for flyback converters,” IEEE Trans. Power Electron., vol. 28, no. 11, pp. 5323–5332, Nov. 2013.
http://dx.doi.org/10.1109/tpel.2013.2243845

S. Jung, and G.-H. Cho, “Transformer Coupled Recycle Snubber for High-efficiency offline isolated LED driver with on-chip primary-side power regulation,” IEEE Trans. Ind. Electron., vol. 61, no. 12, pp. 6710–6719, Dec. 2014.
http://dx.doi.org/10.1109/tie.2014.2316221

S. W. Lee and H. L. Do, "A Single-Switch AC-DC LED Driver Based on a Boost-Flyback PFC Converter With Lossless Snubber," IEEE Trans. Power Electron., vol. 32, no. 2, pp. 1375-1384, Feb. 2017.
http://dx.doi.org/10.1109/tpel.2016.2549029

S. W. Lee and H. L. Do, "Single-Stage Bridgeless AC-DC PFC Converter Using a Lossless Passive Snubber and Valley Switching," IEEE Trans. Ind. Electron., vol. 63, no. 10, pp. 6055-6063, Oct. 2016.
http://dx.doi.org/10.1109/tie.2016.2577622


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