Optimization and Design of Planar Transformer for the High Frequency Link Converter

In this paper, the analysis and experimental verification of a planar transformer for a high-frequency link converter is presented. The known problem of such topologies is strict limitations related to the transformer leakage inductance and parasitic capacitance. This problem is more pronounced in the systems with high transformer turns ratio. The current research aims to find the low-cost solution, at the same time to ensuring that the values of the parasitic parameters are in the acceptable range. The verification of different 1:10 transformer design approaches was experimentally verified with a 1 kW converter prototype.