Modeling and Simulation of Ferrite and Varistor EMI Suppressors

Author

Damnjanovic, Mirjana ; Stojanovic, Goran ; Zivanov, Ljiljana

Author_Institution

Fac. of Tech. Sci., Novi Sad Univ.

fYear

2006

fDate

24-26 April 2006

Firstpage

1

Lastpage

6

Abstract

In this paper, modeling and simulation of electrical characteristics of EMI suppressors will be presented. Ferrite and varistor EMI suppressors consist of conductive layers embedded in ferrite or varistor monolithic structure, which make them very suitable for elimination of conducted EMI. In this paper software tool for calculation of electrical characteristics of ferrite and varistor EMI suppressor is given. A scalable analytical model of different EMI suppressor structures suitable for design and circuit simulations is presented. By using our algorithm, we are able to predict correctly all variations of electrical characteristics introduced by varying geometry parameters of EMI suppressor. These integrated passive devices were tested in the frequency range 1MHz-3GHz using an Agilent 4287A RF LCR meter. The measurements confirm the validity of the analytical model

Keywords

circuit simulation; electromagnetic interference; ferrites; software tools; surge protection; varistors; 1 to 3E3 MHz; Agilent 4287A RF LCR meter; circuit simulations; conductive embedded layers; electrical characteristics; ferrite EMI suppressors; ferrite monolithic structure; integrated passive devices; software tool; varistor EMI suppressors; varistor monolithic structure; varying geometry parameters; Analytical models; Circuit simulation; Circuit testing; Electric variables; Electromagnetic interference; Ferrites; Frequency; Geometry; Software tools; Varistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal, Mechanical and Multiphysics Simulation and Experiments in Micro-Electronics and Micro-Systems, 2006. EuroSime 2006. 7th International Conference on

Conference_Location

Como

Print_ISBN

1-4244-0275-1

Type

conf

DOI

10.1109/ESIME.2006.1644035

Filename

1644035