Critical Current Control (C3) and Modelling of a Buck Based LED Driver with Power Factor Correction

• Autorzy: Skandarnezhad A. , Rahmati A. , Abrishamifar A. , Shahmohammadi S.

Warianty tytułu

PL

Sterowanie prądem krytycznym C3 w przekształtniku z korekcją współczynnika mocy stosowanym do zasilania diod LED

• Języki publikacji: EN

Abstrakty

EN

Buck converter has a good aptitude for LED driver application. Here a new technique introduced to control and model a buck converter in the closed loop condition using Lagrange equation. To improve the final model accuracy, parasitic elements of the converter are taken into account. The main advantage of this method is its novelty and simple implementation. Also, the converter power factor has improved under critical current control (C3) technique. Frequency response and step response of the small signal model are derived and analysed. The theoretical predictions are tested and validated by means of PSIM software. Finally, precise agreement between the proposed model and the simulation results has obtained.

PL

W artykule analizowano zastosowanie przekształtnika typu buck do zasilania diod LED. Zaproponowano nowy układ z uwzględnieniem elementów zakłócających pracę. Zastosowano sterowanie prądem krytycznym dla poprawy jakości pracy przekształtnika. Analizowano właściwości dynamiczne układu.

Słowa kluczowe

EN

power factor correction; LED driver; buck converter; small signal model

PL

przekształtnik buck-boost; współczynnik mocy; zasilanie diod LED

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2015
• Tom: R. 91, nr 10
• Strony: 134--138
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Skandarnezhad A.

• Electrical engineering, Faculty of Electrical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran

autor

Rahmati A.

• Electrical engineering, Faculty of Electrical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran

autor

Abrishamifar A.

• Electrical engineering, Faculty of Electrical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran

autor

Shahmohammadi S.

• Electrical engineering, Faculty of Electrical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran

Bibliografia

• [1] Jardini J.A. et al., Power Flow Control in the Converters Interconnecting AC-DC Meshed Systems, Przegląd Elektrotechniczny, 01(2015), 46-49.
• [2] Gajowik T., Rafał K., Bobrowska M., Bi-directional DC-DC converter in three-phase Dual Active Bridge Topology, Przegląd Elektrotechniczny, 05(2014), 14-20.
• [3] Kazmierczuk M.K., Pulse Width Modulated DC-DC Power Converters, Wiley, Ohio, 2008.
• [4] Ben-Yaakov S., Average simulation of PWM converters by direct implementation of behavioural relationships, IEEE Conf., APEC, 1993, San diego, CA., 510-516.
• [5] Shepherd W., Zhang L., Power Converter Circuits, Marcel & Dekker Inc., New York, 2004.
• [6] Curry J., Hamiltonian and Lagrangian Mechanics, Vol.1, Ed.2, CSI Publishing, USA, 2013.
• [7] Hand L.N., Finch J.D., Analytical Mechanics, Camb. Univ. Press, UK, 1999.
• [8] Ramirez S.H. et al., Passivity-Based Control of Euler-Lagrange Systems, Springer, London, 1998.
• [9] Scherpen J.M.A., Jeltsema D., Klaassens J.B., Lagrangian modelling of switching electrical network, Systems and control letters, 48(2003), 365-374.
• [10] Joseph N., Control and Analysis of Synchronous Rectifier Buck Converter for ZVS in Light Load Condition, International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, 02(2013), No. 06, 2440-2447.
• [11] Kursun V., Narendra S., Vivek K., Friedman G., Efficiency Analysis of a High Frequency Buck Converter for On-Chip Integration with a Dual-VDD Microprocessor, ESSCIRC, 2002, 743-746.
• [12] Zdanowski M., Rąbkowski J., Barlik R., High frequency DC/DC converter with Silicon Carbide devices - simulation analysis, Przegląd Elektrotechniczny, 02(2014), 201-205.
• [13] Basso P., Switch mode power supplies, McGraw-Hill, 2008.