| Title |
A New Column Current Balancing Circuit for LED Indoor Lighting Systems |
| Authors |
이정훈(Jung-Hoon Lee) ; 유재곤(Jae-Gon Yoo) ; 김종수(Jong-Soo Kim) |
| DOI |
https://doi.org/10.5370/KIEE.2023.72.11.1379 |
| Keywords |
LED current balancing; Balancing capacitor; Indoor LED systems; Y-type transformer; Current balancing transformer |
| Abstract |
This paper describes the development of an LED indoor lighting system using the hot current balancing technique. In order to improve the power density, efficiency, and unit cost of an indoor lighting system, a current balancing technique through a thermal current balancing capacitor is presented. Simulations and experiments are conducted to verify the validity and performance evaluation of the proposed method. Simulations are performed using the PSIM simulation tool, and experiments are conducted by designing and manufacturing working sample-level hardware under the same conditions. As a result of the experiment, it was confirmed that 44.6% of current deviation, 10.5% of light efficiency, and 8.6% of annual power consumption were improved compared to the existing indoor lighting system. |