Work

Magnetic field measurement for contactless current sensing in power electronic converters

Year: 2025

Type: conference-paper

Abstract: Current sensing plays an important role in power electronics for both protection and control of power electronic converters. This paper proposes an approach for detecting short-circuit (SC) events through the measurement of the magnetic field radiated by power converters. Two magnetic field sensor technologies (AMR and induction coils) were evaluated. The magnetic field mapping over the PCB is carried out to estimate favorable positions for detecting SC events. The obtained results show that the induction coil is a promising candidate, not only for detecting a SC event but also for performing contactless current measurement in power converters. This work plans to develop the integration of contactless current sensors for power converters, or for intelligent drivers integrating protection against SC event (or over-currents), especially dedicated to wide band gap devices such as GaN and SiC materials which could have lower SC robustness compared to silicon.

Source: INRIA a CCSD electronic archive server

DOI: 10.34746/epe2025-0210

Authors: Nguyen, Tien Anh, Joubert, Pierre-Yves, Lefebvre, Stéphane, Dupont, Laurent, Labrousse, Denis, Chaplier, Gérard, Petit, Mickael, Costa, François

Institutions: Laboratoire des systèmes et applications des technologies de l'information et de l'énergie, Centre de Nanosciences et de Nanotechnologies

Language: English

Topic: Magnetic Field Sensors Techniques

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W6965674045

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