基于串联谐振的高频逆变电源设计

摘要

串联高频逆变电源的逆变桥一定要遵守先关断后导通的原则,即上下桥臂存在一定的死区时间.本文基于对全桥逆变换流分析的基础上,以设计最佳死区为目的,最终通过计算得出了使开关器件工作于零电压开关(ZVS)条件时的死区时间,且设计了以CD4046和SG3525为核心的控制电路,给出了谐振网络参数的计算.%The series inverter must comply with the principle of first off,that is to say,the dead time exist between the upper and lower bridge arm.This paper based on the current analysis of full bridge inverter,to design the best dead time as the goal,ultimately through calculating the switching devices work on the zero voltage switching (ZVS) dead time condition.The design of the control circuit based on CD4046 and SG3525 as the core,calculation of the resonant network parameters are given.