基于半桥变换器的多路LED电容均流特性的研究

Research of Multiple LED Current-sharing Characteristics with Capacitors Based on Half-bridge Converter

针对半桥多路LED电容均流电路,分析其在不同输出电感下,电感电流分别工作在连续模式(CCM)和断续模式(DCM)下的均流原理,并进行仿真验证。通过比较这两种工作模式下的均流效果,验证电路工作在DCM模式的优越性。

The paper analyzes the current-sharing principle of half-bridge multiple LED current-sharing circuit operating in continuous current mode(CCM) and discontinuous current mode(DCM) with different output inductor values, and then proves it by simulation. The result of the simulation verifi es the superiority of circuit operating in DCM by comparing current-sharing effects of different operating modes.