Improved impedance calculation of populated PCB power-bus structures

Author

Hampe, Matthias ; Dickmann, Stefan

Author_Institution

Dept. of Electr. Eng., Helmut Schmidt Univ., Hamburg

fYear

2006

fDate

Feb. 27 2006-March 3 2006

Firstpage

85

Lastpage

88

Abstract

The impact of any number of lumped elements connected to the power-bus has been taken into account recently by using a modified modal summation. The formulas derived provide excellent results for calculating the power-bus impedance in the case of small admittances connected to the PCB. In the case of very large admittances, some errors in the calculations can be observed. In this paper, we further improve these formulas. The improved equations show a good agreement with the circuit theory even in the case of very large admittances connected to the PCB

Keywords

lumped parameter networks; matrix algebra; modal analysis; power supply circuits; printed circuits; circuit theory; lumped elements; modified modal summation; populated PCB power-bus structures; power-bus impedance; Circuit theory; Dielectric losses; Digital circuits; Equations; Power distribution; Printed circuits; Resonant frequency; Surface impedance; Transmission line matrix methods; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2006. EMC-Zurich 2006. 17th International Zurich Symposium on

Conference_Location

Singapore

Print_ISBN

3-9522990-3-0

Type

conf

DOI

10.1109/EMCZUR.2006.214875

Filename

1629565