An Integrated Structure for Transformer and Output Filter of a Micro-inverter with Flexible Multilayer Foil Technique

Abstract

The volume of the passive components is one of the major challenges in designing a micro-inverter. To improve the power density of a micro-inverter, we propose an integrated structure of passive components including transformer and output filter with flexible multilayer foils (FMLF). The topology of the micro-inverter is modified to enable the integration of these passive components. In this paper, the design procedure of the integrated structure is explained. Finally, a prototype of the micro-inverter with the proposed integration is built to verify the design.