Study of Bifurcation Evaluation Method for IPT

The inductive power transfer (IPT) is negatively affected by the bifurcation. Current methods for IPT analysis are general, not designated for the bifurcation analysis - they may be cumbersome or not effective enough. The proposed method describes device operating point (OP) by a combination of load quality factors. The OP is plotted in a diagram and based on its position towards the bifurcation boundary, the bifurcation occurs. Multiple OP joined together to form an operating trajectory suitable for a process evaluation or an operating area, suitable for parameter range analysis in the device design.