New design and implementation of an external passive circuit for cancelling the parasitic capacitance in filter inductors

摘要: This paper presents a new technique consisting of an additional passive component and small capacitor to cancel out the effect parasitic capacitance, thereby improving high frequency filtering performance. The proposed method is related strategy that has been exploited for cancelling capacitance in filter inductors. In this extra winding wound together with main inductor on same core form coupled magnetic windings center-tapped connection. structure compensating can eject capacitive current inductor. Simple circuit relationships between turn ratio, its are written. By these design paper, we could obtain optimized values ratio value capacitor. Effects parameters such as coupling coefficient, type material considered simulated by PSIM software. Also experimental results confirm technique.