Forward converter analysis by the method of coupling electromagnetic field with hysteresis and circuit equations

This paper presents a new method to analyze a forward converter. A high frequency transformer is coupled with the forward converter electric circuit and then the finite element analysis considering a hysteresis phenomenon of magnetic core is carried out when the primary or the reset winding conducts current. The analytical method is used to reduce the computation time when the reset winding circuit of the transformer turns off. As a result, the simulation results show a good agreement with experimental ones.