一种高效开关电容AC-DC变换器  

A New Switched Capacitor AC DC Converter with High Efficiency

作　　者：刘健[1] 陈治明[1] 严百平 

机构地区：[1]西安理工大学自动化系

出　　处：《微电子学》1998年第5期303-306,共4页Microelectronics

摘　　要：针对开关电容ＤＣ－ＤＣ变换器的效率会随着输入电压的增高而显著下降的现象，提出了一种新型的基于开关电容网络的ＡＣ－ＤＣ变换器。它采用根据输入电压变化而动态确定功率开关的导通和关断的方法，从原理上解决了开关电容ＤＣ－ＤＣ变换器的输入电压动态范围与变换器效率之间的矛盾。理论分析和实验结果表明，该转换器可以在较宽的输入电压范围内获得较高的转换效率。A new AC DC converter based on switched capacitor network is presented.In this technique,the power switch is turned on and off according to the dynamic changes in the input voltage,thus solving the conflicts between the dynamic range of the input voltage of the converter and its efficiency.Both theoretical analysis and experimental results show that the AC DC converter has high efficiency over a wide range of input voltage.

关 键 词：功率变换器 AC-DC变换器 变换器 

分 类 号：TN624[电子电信—电路与系统]