Design of dimmable light emitting diode driver for low power applications

• Autorzy: Reddy U. Ramanjaneya , Koppolu Kalyan Kumar
• Języki publikacji: EN

Abstrakty

EN

High-brightness light emitting diodes (HB-LED) are used in various applications in preference to conventional light bulbs due to following merits: eco-friendly nature, high luminous efficacy, prolonged life, compactness and low heat dissipation. This work presents the boost converter fed dimmable light emitting diode where illumination control is required. The proposed work uses pulse width modulated (PWM) controlled switch in series with LED load to control the illumination level by adjusting the pulse width. The closed loop control is designed in Matlab/Simulink to regulate the load voltage. This paper first illustrates in detail the basic operation of the converter and dimming control and then provides the simulation results with different illumination levels to demonstrate the effectiveness of converter and controller.

Słowa kluczowe

EN

light emitting diode; pulse width modulation; boost converter; closed loop control; illumination

PL

dioda elektroluminescencyjna; modulacja szerokości impulsów; przekształtnik boost; sterowanie w pętli zamkniętej; oświetlenie

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2019
• Tom: Vol. 99, nr 3
• Strony: 204--209
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr.

Twórcy

autor

Reddy U. Ramanjaneya

• Electrical & Electronics Engineering, Vardhaman College of Engineering, Kacharam, India

autor

Koppolu Kalyan Kumar

• Electrical & Electronics Engineering, Vardhaman College of Engineering, Kacharam, India

Bibliografia

• [1] C. K. Ramakrishnareddy, P. Shunmugam, N. Vishwanathan, Soft switched full-bridge light emitting diode driver configuration for street lighting application, IET Power Electronics 11 (1) (2017) 149–159.
• [2] U. Ramanjaneya Reddy, B. Narasimharaju, Unity power factor buckboost led driver for wide range of input voltage application, in: 2015 Annual IEEE India Conf.(INDICON), 2015, pp. 1–6.
• [3] H.-J. Chiu, Y.-K. Lo, J.-T. Chen, S.-J. Cheng, C.-Y. Lin, S.-C. Mou, A high-efficiency dimmable led driver for low-power lighting applications, IEEE Transactions on Industrial Electronics 57 (2) (2009) 735–743.
• [4] U. R. Reddy, B. L. Narasimharaju, Single-stage electrolytic capacitor less non-inverting buck-boost pfc based ac–dc ripple free led driver, IET Power Electronics 10 (1) (2017) 38–46.
• [5] S. Wang, X. Ruan, K. Yao, S.-C. Tan, Y. Yang, Z. Ye, A flicker-free electrolytic capacitor-less ac–dc led driver, IEEE Transactions on Power Electronics 27 (11) (2011) 4540–4548.
• [6] B. L. Narasimharaju, U. R. Reddy, R. Dogga, Design and analysis of voltage clamped bidirectional dc–dc converter for energy storage applications, The Journal of Engineering 2018 (7) (2018) 367–374.
• [7] U. Ramanjaneya Reddy, B. Narasimharaju, Improved efficiency coupled inductor-buck ac-dc light emitting diode (led) driver, IEICE Electronics Express 13 (16) (2016) 20160626–20160626.
• [8] R. Reddy, B. Narasimharaju, Enhanced closed loop voltage control of buck converter for improved performance, in: IEEE Annual IEEE India Conference (INDICON), 2014, pp. 1–5.
• [9] C.-A. Cheng, H.-L. Cheng, F.-L. Yang, C.-W. Ku, Single-stage driver for supplying high-power light-emitting-diodes with universal utility-line input voltages, IET Power Electronics 5 (9) (2012) 1614–1623.
• [10] U. R. Reddy, B. Narasimharaju, High step-down dual output light emitting diode driver, International Journal of Renewable Energy Research (IJRER) 7 (1) (2017) 157–169.
• [11] B. Singh, V. Bist, A pfc based bldc motor drive using a bridgeless zeta converter, in: IECON 2013-39th Annual Conference of the IEEE Industrial Electronics Society, IEEE, 2013, pp. 2553–2558.
• [12] R. R. Udumula, B. Narasimharaju, A. Md, Voltage mode control dcm hsd-cib pfc converter for hb-led lighting applications, Journal of Power Technologies 98 (4) (2018) 305–313.
• [13] K. Hwu, Y. Yau, L.-L. Lee, Powering led using high-efficiency sr flyback converter, IEEE Transactions on Industry Applications 47 (1) (2010) 376–386.
• [14] U. R. Reddy, B. Narasimharaju, A cost-effective zero-voltage switching dual-output led driver, IEEE Transactions on Power Electronics 32 (10) (2016) 7941–7953.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).