A detailed application of TL494 PSPICE MODEL in designing switching regulators: An educational approach

This paper describes the application of TL494 PSPICE MODEL with OrCAD Capture for analyzing switching regulators, which can assist beginners like undergraduate students in understanding the switching regulators. This paper mainly focuses on application of simulation model as none of the literatures provides required information to work with TL494 simulation model. Although TL494 chip is a very simple chip as far as hardware is concerned, it is not easy work with Pspice model of TL494 without adequate knowledge about the Pspice software. The application of this chip´s simulation model with OrCAD Capture is demonstrated with the help of buck converter. This application report can also be extended to other non-isolated as well as isolated converters.