A hybrid LED sink driver using a nesting-type switched-inductor/switched-capacitor buck-boost converter
Küçük Resim Yok
Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
Attribution-NonCommercial-NoDerivs 3.0 United States
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
Özet
This paper presents a novel light emitting diode (LED) sink driver with a high voltage gain for LED-based lighting applications. Unlike conventional LED sink drivers, the proposed driver has the nested switched-inductor/switched capacitor (SI/SC) topology consisting of an SI buck-boost converter block and a nesting-type SC cell. Owing to the nested SI/SC topology, the proposed driver offers not only a high voltage gain but also a flexible controllability of the LED currents and transformer-less structure. The effectiveness of the proposed driver is justified by some simulation results in SPICE software environment and laboratory experimental tests. In the performed simulations, the proposed driver in comparison of conventional drivers improved almost 6% power efficiency when the output power was 500 mW. Furthermore, in the performed experiments, the feasibility of the proposed topology is confirmed by demonstrating a high voltage gain and the output controllability.
Açıklama
Anahtar Kelimeler
Hybrid LED sink driver, Nested topology, High voltage gain, Switched inductor circuits, Switched capacitor circuits
Kaynak
7th International Conference on Power and Energy Systems Engineering - Energy Reports
WoS Q Değeri
Q1
Scopus Q Değeri
Q2
Cilt
6
Sayı
9
Künye
Eguchi, K., Bevrani, H., Shafiee, Q., Shibata, A. ve Asadi, F. (2020). A hybrid LED sink driver using a nesting-type switched-inductor/switched-capacitor buck-boost converter. 7th International Conference on Power and Energy Systems Engineering - Energy Reports, Elsevier. 6(9), s. 82-86.
