A new MagFET-based integrated current sensor highly immune to EMI

Aiello, Orazio; Fiori, Franco

doi:10.1016/j.microrel.2012.10.013

Cited by 19 publications

(15 citation statements)

References 13 publications

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“…In particular, the TEM cell tests highlighted how the operations of the specific Hall-effect sensor considered in this study are affected by an RF electric field excitation parallel to the surface of the sensing element. As the physical mechanism of the Hall-effect is not affected by a CW RFI [7], the failures of the Hall sensor are likely related to the ICs that interface the Hall sensor and process its signal. Although many investigations are present in the literature regarding amplifier and monitoring ICs [20][21][22], a precise understanding of the Hall sensor failure causes always relies on a complete knowledge of the ICs that interface with the Hall plates.…”

Section: Discussionmentioning

confidence: 99%

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Hall-Effect Current Sensors Susceptibility to EMI: Experimental Study

Aiello

2019

Electronics

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The paper deals with the susceptibility to Electromagnetic Interference (EMI) of Hall-effect current sensors. They are usually employed in power systems because of their galvanic isolation. The EMI robustness of such contactless device was compared with that of resistive current sensing (wired method). To this purpose, a printed circuit board (PCB) was fabricated. EMI tests methods such as Bulk Current Injection (BCI), Transverse-Electromagnetic (TEM) cell and Direct Power injection (DPI) were performed to evaluate the robustness of the Hall-Effect current sensor. EMI-induced failures are highlighted by comparing the different measurements tests and setups.

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Section: Discussionmentioning

confidence: 99%

“…This allows keeping the power circuit current flows to be monitored electrically isolated from the sensor [6]. On this basis, Hall-effect sensors are not affected by conducted interference generated by the power system to be monitored [7][8][9][10] and are therefore particularly employed in electromagnetically-polluted environments.…”

Section: Introductionmentioning

confidence: 99%

Hall-Effect Current Sensors Susceptibility to EMI: Experimental Study

Aiello

2019

Electronics

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“…Therefore, the susceptibility to electromagnetic interference (EMI) of smart power electronics and its on-board monitoring and control functions (i.e., thermal shutdown, current sensors and overvoltage protection) has to be considered. This to prevent malfunctions and guarantee the correct/expected functioning of the electronic system in any operating conditions [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Susceptibility of Battery Management Systems’ ICs for Electric Vehicles: Experimental Study

Aiello

2020

Electronics

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The paper deals with the susceptibility to electromagnetic interference (EMI) of battery management systems (BMSs) for Li-ion and lithium-polymer (LiPo) battery packs employed in emerging electric and hybrid electric vehicles. A specific test board was developed to experimentally assess the EMI susceptibility of a BMS front-end integrated circuit by direct power injection (DPI) and radiated susceptibility measurements in an anechoic chamber. Experimental results are discussed in reference to the different setup, highlighting the related EMI-induced failure mechanisms observed during the tests.

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“…The sensitivity of a galvanic current sensor to the magnetic field depends on the carrier mobility, hall factor and its geometry [3] [4]. In this context, inherent polarization in GaN gives rise to a high density 2DEG even without the application of an external bias.…”

Section: Introductionmentioning

confidence: 99%