PLANAR TRANSFORMER WITH INSULATION STRUCTURE FOR IMPROVED PERFORMANCE

摘要

A planer transformer to which an insulation structure for improved performance according to an embodiment of the present invention comprises: a pair of ferrite cores (110) including an upper core (110-1) and a lower core (110-2); a printed circuit board (120) disposed between the pair of ferrite cores (110), and in which a primary via hole (121) that electrically connects a primary coil pattern to one end thereof is provided and a secondary via hole (123) that electrically connects a secondary coil pattern to an opposite end thereof is provided; an insulation block (130-1) that accommodates one side of the pair of ferrite cores (110); and an insulation base (130-2) disposed in the pair of ferrite cores (110) and inserted into and coupled to the insulation blocks (130-1). Moreover, the insulation block (130-1) and the insulation base (130-2) accommodate a partial area of the printed circuit board (120) on one side, on which the secondary via hole (123) is provided. According to the present invention, the efficiency of the transformer can be increased by decreasing the length of the secondary coil pattern of the printed circuit board to decrease the resistance component.