State-space technique are employed to derive an equivalent nonlinear recurrent time-domain model that describes the series resonant converter behavior exactly. This model is employed effectively to analyze large signal behavior by propagating the recurrent equation and matching boundary conditions through digital computation.
This thesis proposes an improved simulation scheme and controller design method for the series resonant converter. The proposed simulation scheme is verified with a laboratory converter. The proposed controller design method includes output feedback PI(proportional-integral)-controller and input feedforward compensator which reduce low frequency input voltage ripple in the output voltage. The closed-loop system using designed controller is simulated with the verified simulation technique for low frequency ripple.
