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

This paper presents a new method to analyze a forward converter. A high fre quency transformer is coupled with the forward converter electric circuit a nd 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 s imulation results show a good agreement with experimental ones.