陕西科技大学学报（自然科学版）Issue(6)：152-157,6.
数字控制谐振变换器高轻载效率的研究
Research of resonant converter based on digital control with high light load efficiency
摘要
Abstract
To solve the disadvantages of traditional anlog power supply loss and less efficient , the scheme of digital PI control based on the DSP is proposed .A new Burst‐mode control strategy based on digital control is proposed and adjustable dead time is settled by the princi‐ple of LLC resonant converter and Burst‐mode and the analysis of gain curves ,which can im‐prove the switching frequency at light load condition ,ZVS can be achieved ,meanw hile ,the converter switching and transmission loss is reduced ,and the light load efficiency is im‐proved .The resuls show that set the reasonable dead time under 5% load condition ,the effi‐ciency reaches 87 percent ,and in 5% ~20% load condition ,the efficiency is higher than 93 percent .The performance of Burst‐mode control scheme of LLC converter is verified by sim‐ulation and experimental results .关键词
LLC半桥谐振变换器/轻载效率/死区时间/数字信号处理器(DSP)Key words
LLC half-bridge resonant converter/light load efficiency/dead time/DSP分类
动力与电气工程引用本文复制引用
史永胜,高丹阳,李晓明,胡双..数字控制谐振变换器高轻载效率的研究[J].陕西科技大学学报（自然科学版）,2015,(6):152-157,6.基金项目
陕西省教育厅专项科研计划项目（12JK0494）；陕西科技大学博士科研启动基金项目 （）
