전원무결성 해석에 의한 PCB 전원안정화설계기법 연구

This paper introduces the reduction design technique of the resonance phenomenon of the inner PCB based on power integrityfrom the analysis about the inner power supply line generating RLC resonance. With the technique, the resonant frequency resultedfrom the structural characteristics of the PCB can be analyzed and allows to predict and the capacitor for resonance phenomenonreduction can be decided as a decoupling capacitor. From the simulation result, it was confirmed that the PCB's resonancephenomenon reduction design technique should have the reduction effect in the inner motherboard of the industrial controller. Thisresearch will be contributed to the improvement of the safety of a PDN (Power Delivery Network) structure in the layout designtechnique of the PCB.