基于ORCAD Pspice A/DV9的移相谐振控制器UC3875的仿真应用

Simulation Application of the Phase Shift Resonant Controller UC3875 Based on ORCAD Pspice A/DV9

简要描述了全桥软开关移相控制的原理 ,介绍了谐振控制器UC3875的电气特性。在此基础上 ,设计了一个基于ORCDADPspiceA/DV9的UC3875的仿真电路 。

The paper briefly describes the principle of full-bridge soft-switching phase-shifted control and the electric characte ristic of the phase shift resonant controller UC3875 are introduced.On the basis of above,a simulated circuit of UC3875 is designed based on ORCAD Pspice A/DV9.The simulation analysis of the circuit is performed and parameters are optimized by introducing the PI modulation technique.