TY - GEN
T1 - A Modular Multi-Channel Constant-Current LED Driver with High Frequency AC Square Voltage Bus
AU - He, Qingqing
AU - Luo, Quanming
AU - Cao, Chi
AU - Sun, Pengju
AU - Zhou, Luowei
AU - Wei, Yuqi
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12/3
Y1 - 2018/12/3
N2 - A multi-channel constant-current LED driver based on high-frequency AC square voltage is proposed in this paper, which is composed of a high-frequency DC/AC inverter and as many passive LCL-T resonant rectifiers as the number of the output channels. The passive rectifier whose output current is sensed and closed-loop controlled is called master rectifier and all the others are slave rectifiers. Considering the influence of the higher harmonics, the constant-current output performance of the driver is analyzed, and the influence of master channel on slave channel is obtained precisely in this paper. Based on the analysis results, the quantitative design of the parameters has been completed to satisfy the requirement of the slave normalized current. Finally, a 200-W prototype with five constant-current outputs is built to verify the correctness of theoretical analysis.
AB - A multi-channel constant-current LED driver based on high-frequency AC square voltage is proposed in this paper, which is composed of a high-frequency DC/AC inverter and as many passive LCL-T resonant rectifiers as the number of the output channels. The passive rectifier whose output current is sensed and closed-loop controlled is called master rectifier and all the others are slave rectifiers. Considering the influence of the higher harmonics, the constant-current output performance of the driver is analyzed, and the influence of master channel on slave channel is obtained precisely in this paper. Based on the analysis results, the quantitative design of the parameters has been completed to satisfy the requirement of the slave normalized current. Finally, a 200-W prototype with five constant-current outputs is built to verify the correctness of theoretical analysis.
KW - Constant-current LED driver
KW - DC/DC Converter
KW - LCL-T resonant network
KW - Multiple output
UR - https://www.scopus.com/pages/publications/85060312937
U2 - 10.1109/ECCE.2018.8557379
DO - 10.1109/ECCE.2018.8557379
M3 - 会议稿件
AN - SCOPUS:85060312937
T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
SP - 4712
EP - 4716
BT - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Y2 - 23 September 2018 through 27 September 2018
ER -
