TY - GEN
T1 - A Two-channel LED Driver with Automatic Current Balance and Soft-switching
AU - Zhang, Xiangjun
AU - Cai, Hongye
AU - Sun, Lei
AU - Liu, Hao
AU - Wang, Yijie
AU - Xu, Dianguo
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/11/29
Y1 - 2020/11/29
N2 - In this paper, a stacked half bridge converter with automatic current balance and soft-switching is proposed. Here, an LED driver is taken as an example to analyze. Based on the ampere-second balance principle, the proposed LED driver can realize automatic current balance. The proposed converter adopts a small inductor to form a resonant tank, which achieves zero current switching (ZCS) in the discontinuous operation mode (DCM) and zero voltage switching (ZVS) in the continuous operation mode (CCM). By using frequency doubling technology, switching losses are reduced by half under the same hardware conditions. A 15.8W experimental prototype with 100V input voltage and 25V output voltage is established in the laboratory, verifying the feasibility of the stacked half bridge converter.
AB - In this paper, a stacked half bridge converter with automatic current balance and soft-switching is proposed. Here, an LED driver is taken as an example to analyze. Based on the ampere-second balance principle, the proposed LED driver can realize automatic current balance. The proposed converter adopts a small inductor to form a resonant tank, which achieves zero current switching (ZCS) in the discontinuous operation mode (DCM) and zero voltage switching (ZVS) in the continuous operation mode (CCM). By using frequency doubling technology, switching losses are reduced by half under the same hardware conditions. A 15.8W experimental prototype with 100V input voltage and 25V output voltage is established in the laboratory, verifying the feasibility of the stacked half bridge converter.
KW - automatic current balance
KW - resonant switched capacitor
KW - stacked half bridge
KW - zero current switching (ZCS)
UR - https://www.scopus.com/pages/publications/85103189473
U2 - 10.1109/IPEMC-ECCEAsia48364.2020.9367847
DO - 10.1109/IPEMC-ECCEAsia48364.2020.9367847
M3 - 会议稿件
AN - SCOPUS:85103189473
T3 - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
SP - 2594
EP - 2598
BT - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Y2 - 29 November 2020 through 2 December 2020
ER -