Tool for design and simulation of Flyback converters

In this paper is presented a mathematical method to design of switching mode power supply with galvanic separation. Also, the intent of this paper is to present a tool for designing of Flyback converter. Using a combination between differential mathematical equation and linear equations implemented in Matlab, a tool for simulation and design of this type of converter was implemented. This tool allows the introduction of minimal number of input data in order to design the converter and returns all the circuit parameters and the characteristic waveforms of the Flyback converter. This tool for designing and simulating of Flyback converter can have a wide range of users, from switching mode power supply design engineers, in order to reduce the time necessary for design this type of converters, to students that learn these kinds of dc-dc power supply. In order to validate the results obtained with the mathematical model implemented in this Matlab tool, a Spice model simulation was also implemented.