Design and analysis of contactless transformer using series resonant converter

摘要

A loosely contactless transformer with a large air gap has small magnetizing inductance and large leakage inductance comparing with a closely conventional transformer. This paper focus on analysis, design and measurement results of the loosely winding contactless transformer using resonant converter. Finally, the experimental set up is built to transfer power of 300 W over the different gap variation (1mm-10mm) using series resonant converter. On the contrary to the traditional closely coupled transformer, the contactless transformer with separated primary and secondary winding is used.%W artykule przedstawiono wyniki projektu i analizy transformatora o luźnym uzwojeniu do przesyłu bezstykowego z wykorzystaniem przekształtnika rezonansowego. Badania eksperymentalne polegały na przesyle 300W energii przy różnych rozmiarach szczeliny powietrznej transformatora.