Title :
Elimination of electrolytic capacitor in AC-DC system of LED driver
Author :
Mustapa, Rijalul Fahmi ; Hidayat, Nabil M. ; Tukiman, Rahayu
Author_Institution :
Fac. of Electr. Eng., Univ. Teknol. MARA, Shah Alam, Malaysia
Abstract :
The objective of this project is elimination of electrolytic capacitor in LED driver in order to enhance the operating time. In this paper, a novel circuit of LED driver is proposed using neutral point type buck-boost converter incorporating valley fill circuit, which can reduce the capacitance of smoothing capacitor. Thus, film capacitor can replace electrolytic capacitor as the smoothing capacitor. 80W prototype of LED driver has been built to confirm the validity of the proposal.
Keywords :
AC-DC power convertors; capacitance; driver circuits; light emitting diodes; smoothing circuits; thin film capacitors; AC-DC system; LED driver circuit; capacitance reduce; film capacitor; neutral point type buck-boost converter; power 80 W; smoothing capacitor; valley fill circuit; Capacitors; Light emitting diodes; Radio access networks; Switches; Active filters; Converter; Harmonic filters; Inverter; LED driver;
Conference_Titel :
Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA), 2014 International
Conference_Location :
Hiroshima
DOI :
10.1109/IPEC.2014.6869945
