The Analysis of characteristics on conventional and novel flyback converter with Leakage-Inductance

Static and dynamic characteristics of both the novel flyback converter proposed before and the conventional one are analyzed including the effect of transformer leakage inductances, and the results are confirmed experimentally. The leakage inductances make the current-commutation periods increase. As a result, the voltage conversion ratio is decreased from the static viewpoint, and the damping factor in dynamics is increased. Therefore, the existence of leakage inductances deteriorates the energy-transfer process, and on the other hand, makes the converter dynamics more stable.