Influence of the cross-section form of the power bus bar on its parameters

摘要

Per-unit-length inductance and characteristic impedance are the main parameters that affect the operation of power bus bar (PBB). When designing the PBB there are attempts to reduce these parameters in various ways. The cross-section size and the material of dielectric have a significant influence on the parasitic parameters of the PBB. In this paper, we calculate the line parameters of PBB for various values of dielectric permittivity and cross-sectional shapes (for the constant area of 50 mm2). The results of calculations of the PBB parameters with the change of the thickness, width, and shape of the conductors are presented. The analysis of the mass, dimensions and technological possibilities of PBB manufacturing is carried out. The optimal parameters of the cross-section of PBB were determined according to the criteria of the minimum per-unit-length inductance and the characteristic impedance.