DTA

Digital Theses Archive

 

Tesi etd-11122021-114317

Type of thesis
Corso Ordinario Secondo Livello
Author
COMINO, CORRADO
URN
etd-11122021-114317
Title
Design and Simulation of the magnetic circuit employed in the stray field immunity characterization of Infineon magnetic core-less current sensors
Structure
Cl. Sc. Sperimentali - Ingegneria
Course
INGEGNERIA - INGEGNERIA
Committee
relatore Prof. CIPRIANI, CHRISTIAN
Presidente Prof. FRISOLI, ANTONIO
Membro Prof. ODDO, CALOGERO MARIA
Membro Prof. CUCINOTTA, TOMMASO
Membro Prof. CASTOLDI, PIERO
Membro Prof. CIARAMELLA, ERNESTO
Membro Prof. RICOTTI, LEONARDO
Membro Prof. BERGAMASCO, MASSIMO
Keywords
  • current
  • FEM
  • ferrite
  • magnetic
  • sensors
  • simulation
Exam session start date
16/12/2021;
Availability
parziale
Abstract
This thesis presents the design and a simulation method for the magnetic circuit employed in the characterization of Infineon modern core-less current sensors. The latter have a magnetic-based sensing structure to measure the magnetic field induced by the current flowing on a specific current rail. Since the reliability of the sensing system strictly depends on the immunity to stray fields, a characterization of the sensors is pivotal. This thesis proposes a magnetic circuit design able to induce a high-frequency and high-intensity magnetic field into the air gap of a ferrite core, where the current sensor is deployed and its immunity characteristics verified. Furthermore, the Finite Element Method analysis of the circuit is presented and the results discussed.
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