一种改进的不对称半桥磁耦合驱动电路  

An improved flux coupling driving circuit of asymmetrical half-bridge

作　　者：廖志凌[1] 宋中奇[1] 徐东[1] 徐艳杰[1] 王兆坤[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《电源技术》2011年第6期705-707,共3页Chinese Journal of Power Sources

基　　金：江苏高校哲学社会科学重点研究基地重大招标项目(2010-2-9);江苏大学高级专业人才科研启动基金项目(09JDG010)

摘　　要：针对传统的磁耦合驱动电路存在的不足,提出了一种改进的驱动电路,具有结构简单、成本低廉、且驱动源和主电路隔离的优点,可用于太阳电池最大功率跟踪器等占空比变化范围较大的场合。给出了电路工作原理分析以及电路中重要参数隔直电容的选取方法,最后通过实验验证了电路的可行性,具有实用参考价值。Aiming at the demerit of the traditional flux coupling driving circuit,an improved driving circuit was proposed which had some advantages,such as simple structure,low cost,the driving source isolated from the main circuit.The proposed circuit could be used in the maximum power point tracking circuit of solar cell which had a wide range duty cycle.The circuit principle analysis and the parameter selection of capacitor were given.At last,the experimental results prove the verification of its practicability.

关 键 词：太阳电池 驱动电路 占空比变化 MOSFET 

分 类 号：TM131.4[电气工程—电工理论与新技术]