电子器件2016，Vol.39Issue(2)：298-304,7.DOI:10.3969/j.issn.1005-9490.2016.02.012
数字控制LLC谐振全桥变换器的应用设计
Application Design of LLC Resonant Full-Bridge Converter Based on Digital Control
摘要
Abstract
In order to improve the efficiency of analog switching power supply,the design of digital power based on DSP is proposed. This paper analyzes the theory of LLC resonant converter that takes the full-bridge as the main circuit. A program for the full-bridge converter based on DSP TMS320F28335 is introduced. Finally a prototype of 300 V~400 V input ,48 V/12 A output was fabricated and tested. Saber software has been used to simulate and debug the full-bridge LLC resonate convertes in the design proceeding. The design of digital control and software system are given. ZCS and ZVS can be maintained in full load. The output ripple is less than 0.5%,efficiency is more than 95%,both of them achieve the design requirements.The result proved that the Full-bridge LLC resonant converter confirms the development trend of the power supply with the higher power density and efficiency.关键词
数字电源/LLC谐振/数字信号处理器/高效率Key words
digital power/LLC resonant/DSP/high efficiency分类
信息技术与安全科学引用本文复制引用
史永胜,李晓明,高丹阳..数字控制LLC谐振全桥变换器的应用设计[J].电子器件,2016,39(2):298-304,7.基金项目
国家自然科学基金青年项目（51102159）；陕西科技大学博士专项基金项目 （）
