并联改善单片集成SCDC/DC变换器输出特性  

Improving Output Characteristics of Monolithically Integrated Switched-Capacitor DC/DC Converter by Parallel Connection

作　　者：任萍[1] 陈治明[1] 赵敏玲[1] 王立志[1] 

机构地区：[1]西安理工大学,陕西西安710048

出　　处：《电力电子技术》2006年第6期131-133,共3页Power Electronics

基　　金：国家自然科学基金资助项目(50177027)~~

摘　　要：计算机模拟和实验表明,缩小单元电路的电容,增加并联电路的数量,比在单元电路中采用总容量相等的大电容更有利于输出功率的提高。在变换器主电路上级联稳压器,使得输出电压的纹波小于1%,基本消除输出电压随负载电阻的变化,并且大大降低了滤波电容的值,更有利于实现单片集成。Computer simulation and experiment results shown that reducing capacitors in the unit circuits and correspondingly increasing the number of parallel-connected units was better than using the same total capacitance in one unit circuit to enhance the output power.The vonnection of a regulator with the main circuit made the output voltage ripple under 1% ,eliminated the change of output voltage with the change of load resistance, and reduced the value of filter capacitor,which is of benefit to realize the monolithic integration.

关 键 词：变换器 开关 电容/单片集成 

分 类 号：TM46[电气工程—电器]