高效的插入式LED阵列驱动接口电路

High-efficiency Add-in Interface Circuit for LED Matrix Driving

基于插入技术以及能量回馈策略,提出一种插入式LED阵列驱动接口电路,可高效率地驱动规则及不规则LED阵列。在分析电路工作原理的基础上,推导了其主要关系式。制作并优化了单通道的插入式LED阵列驱动接口电路样机。实验结果表明在全负载范围内实验数据与理论分析值大致吻合,而且样机能实现高效率的LED驱动。

By adopting an add-in technology and an energy feedback strategy, a hig-efficiency add-in interface circuit is proposed for normal and abnormal LED matrix driving. The operation principle of the proposed circuit is introduced and the main equations and inequations are given. A prototype add-in interface circuit of one channel was implemented and optimized. The experimental results show that most of the experimental data agreed with the theoretical ones within the whole load range and the prototype circuit was able to drive the LEDs with high efficiency.