同步整流在隔离升压变换器中的应用

摘要

An improved isolation booster circuit with synchronous rectification is proposed in this paper to solve the problems which occur in the traditional DC/DC converter. After analysis and comparison of integrated control, hysteretic control and pulse width control, the control circuit with the pulse width rectification was chosen. According to the performance index of DC/DC power system, parameters of the main circuit were designed. A simulation analysis for the dynamic response speed of a single module system was conducted by means of Saber software. Simulation results show that the improved isolation booster circuit can fully meet the specific requirements of the aviation static inverter. The rationality and correctness of theoretical analysis were verified. It laid a foundation for further application of aviation static inverter in the aviation ground power supply.%针对传统的DC/DC变化电路存在的问题,应用同步整流技术,提出了一种改进型隔离升压电路.通过对集成控制、滞环控制和脉宽控制三种控制电路的分析对比,最终选择脉宽调制做为其控制电路.根据DC/DC电源系统的性能指标设计了主电路参数,使用Saber软件对单模块系统的动态响应速度进行了仿真分析,仿真结果表明,改进型隔离升压电路完全可以满足航空静止变流器的特定要求,验证了理论分析的合理性和正确性,为航空静止变流器在航空地面电源上的进一步应用奠定了基础.