TY - JOUR
T1 - A Variable Inductor Controlled Single-Stage AC/DC Converter for Modular Multi-Channel LED Driver
AU - He, Qingqing
AU - Luo, Quanming
AU - Wei, Yuqi
AU - Sun, Pengju
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2021/12/1
Y1 - 2021/12/1
N2 - Light-emitting diodes (LEDs) are widely used in street lighting, landscape lighting, liquid crystal display (LCD) backlighting, healthcare, etc. As an important part of LED lighting products, LED driver plays a vital role in maintenance costs reduction, energy saving and lifetime prolongation. In this paper, a single-stage LED driver is proposed, which is integrated by a totem-pole bridgeless power factor correction (PFC) unit and several modular LCL-T resonant rectifiers. The totem-pole bridgeless PFC unit and the LCL-T resonant rectifiers are integrated by sharing switches, which can simplify the circuit and reduce the system cost. The output current can be regulated by applying the variable inductor control. Constant duty cycle and fixed switching frequency operation can be achieved as well. The operating principle and the performance of the proposed converter are analyzed in this paper. In addition, a precise parameter design method is proposed by considering the high-order harmonics. At last, an experimental prototype is established to validate the proposed parameter design and variable inductor control method.
AB - Light-emitting diodes (LEDs) are widely used in street lighting, landscape lighting, liquid crystal display (LCD) backlighting, healthcare, etc. As an important part of LED lighting products, LED driver plays a vital role in maintenance costs reduction, energy saving and lifetime prolongation. In this paper, a single-stage LED driver is proposed, which is integrated by a totem-pole bridgeless power factor correction (PFC) unit and several modular LCL-T resonant rectifiers. The totem-pole bridgeless PFC unit and the LCL-T resonant rectifiers are integrated by sharing switches, which can simplify the circuit and reduce the system cost. The output current can be regulated by applying the variable inductor control. Constant duty cycle and fixed switching frequency operation can be achieved as well. The operating principle and the performance of the proposed converter are analyzed in this paper. In addition, a precise parameter design method is proposed by considering the high-order harmonics. At last, an experimental prototype is established to validate the proposed parameter design and variable inductor control method.
KW - Constant-current driver
KW - bridgeless PFC
KW - single-stage multiple outputs
KW - variable inductor control
UR - https://www.scopus.com/pages/publications/85102699717
U2 - 10.1109/TEC.2021.3065444
DO - 10.1109/TEC.2021.3065444
M3 - 文章
AN - SCOPUS:85102699717
SN - 0885-8969
VL - 36
SP - 2912
EP - 2923
JO - IEEE Transactions on Energy Conversion
JF - IEEE Transactions on Energy Conversion
IS - 4
ER -