Coreless printed circuit board (PCB) transformers with multiple secondary windings for complementary gate drive circuits

This paper describes the modeling and implementation of a coreless printed circuit board (PCB)-based transformer with "'multiple" secondary outputs, T his new PCB transformer has been successfully applied in complementary gate drive circuits in a novel low-profile power converter with high-power dens ity and a converter bridge. The PCB-based transformers do not require the m anual winding procedure and thus simplify the manufacturing process of tran sformer-isolated gate drive circuits. The use of the multiple secondary out puts can in principle simplify the complementary gate drive circuits that a re often required in many power electronics applications.