Comparison between analog and digital control of LLC converter

The paper presents an approach to simulate digital power supplies. The PSIM software provides DLL (dynamic link library) blocks which allow users to link custom C/C++ routine to PSIM. A Visual C++ project is created in order to generate a DLL file. Using a PID controller with anti windup an LLC 600W digital power supply is simulated. The results are compared with simulation of an analog controlled power supply.