High-frequency flat-panel transformer

The invention provides a high-frequency flat-panel transformer, which aims at solving the technical problems existing in the traditional winding-type transformers in the background technology and the existing flat-panel transformers. The high-frequency flat-panel transformer comprises two E-shaped flat-panel magnetic cores and a multilayer printed circuit board (PCB) winding which is installed on a closed magnetic core which is formed after the two E-shaped flat-panel magnetic cores are fastened. The PCB winding on each layer consists of a copper-clad layer, an insulating dielectric layer and a lead pin. The multilayer PCB winding comprises layers of parallel primary windings and layers of parallel secondary windings, wherein the primary windings and the secondary windings are arranged at intervals. Compared with the traditional winding-type transformers, the high-frequency flat-panel transformer has the advantages that the goal of miniaturizing direct-current to direct-current (DC/DC) power supply modules is achieved and the consistency of power density and parameters is improved; and compared with the existing common flat-panel transformers, the high-frequency flat-panel transformer has the advantages of small size, high power density and small loss.