@inproceedings{148745b0ec1243b1b3b180ff7c05bb4d,
title = "A universal-input single-stage AC-DC converter for twin-bus type high-power LED applications",
abstract = "In the high-power LED driver system, a single-stage boost-LLC type soft-switched AC-DC converter is usually employed for obtaining the high efficiency and low cost. However, the high bus voltage is its fatal disadvantage due to the PFM control strategy. Thus, this LED driver is only applied in the low ac input voltage case. In order to overcome this problem, an asymmetric PWM (APWM) feed-forward strategy is proposed in this paper. The proposed control method can reduce significantly the bus voltage. The detailed operation principle and design consideration for the proposed control strategy are analyzed and discussed. The feature of the proposed solution was demonstrated using a universal-input 100-W hardware prototype. The experimental results showed the converter achieves full-range ZVS for primary switches and the efficiency of 92% under the 120V input voltage.",
keywords = "Electrolytic Capacitor-free, High-Powe, LED Driver, Single-stage, Universal-Input",
author = "Hongbo Ma and Gang Chen and Junhong Yi and Qingwei Meng and Deshang Sha",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016 ; Conference date: 18-09-2016 Through 22-09-2016",
year = "2016",
doi = "10.1109/ECCE.2016.7854804",
language = "English",
series = "ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings",
address = "United States",
}