一种降压/升压式开关电容AC-AC变换器设计  

A Buck/Boost switched-capacitor AC-AC converter

作　　者：王忠阁[1] 汪伟[1] 蔡慧[1] 

机构地区：[1]中国计量学院机电工程学院,浙江杭州310018

出　　处：《电源技术》2015年第7期1501-1503,共3页Chinese Journal of Power Sources

基　　金：浙江省自然科学青年基金(LQ13E070001)

摘　　要：提出了一种新型降压/升压式开关电容AC-AC变换器,能够实现电压增益为1/4或4的交流变换。阐述了变换器的主电路拓扑结构,分析了在低频和高频条件的基本工作原理,并根据变换器的等效内阻公式给出了等效电路模型。为验证理论分析的正确性,搭建了一台功率等级为500 W开关频率为50 k Hz 220 V/55 V的实验样机,实验结果验证了理论分析的正确性。A novel Buck / Boost switch-capacitor AC-AC converter was proposed, which could achieve a voltage gain of 114 or 4 AC conversions. The converter main circuit topology was described, low and high frequency of the conditions in the basic working principle was analyzed, and according to the converter equivalent intemal resistance formula, the equivalent circuit model was given. In order to verify the correctness of theoretical analysis, a power rating of 500 W switching frequency of 50 kHz 220 V/55 V experimental prototype was designed. The experimental results verify the validity of the theoretical analysis.

关 键 词：开关电容 AC-AC变换器 降压/升压 

分 类 号：TM46[电气工程—电器]