Boost变换器和Boost-ZVT变换器的比较研究

摘要

介绍普通Boost 变换器和Boost-ZVT变换器的工作原理，指出 Boost 变换器的开关管工作在硬开关状态，而Boost-ZVT变换器的主开关管工作在软开关状态。通过理论分析可以知道Boost-ZVT变换器的效率更高，然后将两种电路应用于单相功率因数校正电路中。最后在 Pspice软件环境下搭建功率因数校正电路Boost变换器与Boost-ZVT变换器的仿真模型并进行仿真，并对仿真结果进行分析和比较，指出了它们各自的优点与缺点。%The operating principles of the common Boost converter and Boost-ZVT converter were introduced in detail, and it is pointed out that the switch of the Boost converter works in hard switching state,while the main switch of the Boost-ZVT converter works in soft switching state.Theoretical analysis shows the efficiency of Boost-ZVT converter is higher, and then the two circuits were applied to the single-phase power factor correction circuit.The simulation models of power factor correction circuit of Boost converter and Boost-ZVT converter were built in the Pspice software environment,and the simulation results were analyzed and compared,and their advantages and disadvantages were pointed out.