Modelling of resonant switched-mode converters using SIMULINK

A method of modelling DC-DC converters has been developed using SIMULINK. For the flyback quasiresonant converter, the equations for the si.ate variables and the active and passive switches have been derived and a corresponding SIM ULlNK model has been constructed. Submodels for the different parts of the controller have also been Constructed, and the complete system has been simulated. This modelling technique requires less memory and CPU time than SPICE.