一种新的LLC谐振变换器自适应控制方法  

A Novel Self-Adaptation Control Method for LLC Resonant Converter

作　　者：鄢毅之[1] 冯小飞[1] 马莉[2] 

机构地区：[1]中国电子科技集团公司第二十四研究所 [2]中国人民解放军77103部队

出　　处：《微电子学》2017年第1期74-76,91,共4页Microelectronics

摘　　要：提出了一种新的自适应LLC谐振变换器控制方法。通过DSP对输入电压、输出电压进行实时监控,计算出最小频率,确保LLC变换器运行在最小频率之上,避免进入容性模式。使用该控制方法可以极大地提高变换器的可靠性。A novel selLadaptation control method for LLC resonant converter was proposed for avoiding capacitive-mode operation. It＇s achieved by the DSP controller. The real-time input voltages and output voltages were monitored, and the obtained values of them were used to calculate the minimum frequency. The LLC resonant converter was made operate constantly above the minimum frequency limit for avoiding capacitive-mode operation. The proposed control method could improve greatly the reliability of the converters.

关 键 词：自适应 容性模式运行 LLC谐振变换器控制方法 

分 类 号：TN432[电子电信—微电子学与固体电子学]