Szczegóły publikacji

Opis bibliograficzny

Autorzy (7)

• AGHDąbek Michał
• AGHWiśniowski Piotr
• AGHKalabiński Paweł
• Wrona Jerzy
• Moskaltsova Anastasiia
• Cardoso Susana
• Freitas Paulo P.

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Dane bibliometryczne

ID BaDAP	101899
Data dodania do BaDAP	2016-12-13
Tekst źródłowy	URL
DOI	10.1016/j.sna.2016.10.001
Rok publikacji	2016
Typ publikacji	artykuł w czasopiśmie
Otwarty dostęp
Czasopismo/seria	Sensors and Actuators, A, Physical

Abstract

This paper addresses the problem of current monitoring in resonant power converters for overcurrent protection. Since the demand for higher power density suppliers is constantly growing, resonant power converters (RPC) have been receiving more and more attention recently, due to its high efficiency and high switching frequency capability. However,to make practical use ofthis approach there are still crucial issues, such as overcurrent protection of converter components. Therefore, it is required to implement dedicated protection methods based on a quick feedback loop and additional, modern design solutions. To ensure high reliability of any protection method, as well as to implement new solutions in power electronics, novel current monitoring techniques and sensors are needed. Thus, in this study we present high fidelity magnetoresistive current sensors for monitoring MHz signals with extremely low nonlinearity (< 0,015%), hysteresis (close to 0%) and phase shift (close to 0◦). The remarkable effectiveness of the proposed sensors was confirmed by monitoring three different, MHz current waveforms, typically occurring in RPCs with different overcurrent protection methods FFT results clearly emphasize superb signal reproduction, which enables the using of the tested sensors in modern high speed, power electronics applications.

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