Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title The Design of Long-life and High-efficiency Passive LED Drivers using LC Parallel Resonance
Authors Eun-Soo Lee ; Bo-Hwan Choi ; Jun-Pil Cheon ; Bong-Cheol Kim ; Chun-Taek Rim
DOI 10.6113/TKPE/2013.18.4.397
Page pp.397-402
ISSN 1229-2214
Keywords passive LED driver; high-efficiency; long-life time; power factor; total harmonic distortion
Abstract This paper proposes a new passive type LED driver which satisfies the standard of power factor (PF) and total harmonic distortion (THD). The proposed passive LED driver also has high-efficiency and long-life time characteristics compared to active LED driver which is composed of op-amp, switches and so on. By using just passive components such as inductor, capacitor, and diode, it has resolved extremely short-life time and low-efficiency problems of previous LED drivers. It has achieved PF of 0.99, THD of 16.4 %, and the total efficiency of 95 %. The proposed passive LED driver is fully analyzed and verified by simulations and experiments, which results are in good agreement each other.