Department of Automatic Control and Systems Engineering
Abstract
This paper presents an investigation into the dynamic modelling and control of quasi-resonant switch mode converters (QRC's). A small signal model of a QRC is derived through dynamic analysis of the system. This is used to design a controller for a zero-current switching QRC. The converter and the controller are designed, simulated and actually built. Finally, simulated and experimental results, verifying the performance of the controlled QRC in the presence of changes in load or input voltage are presented and discussed
