Determination of Core Size Dependency on the EMI Suppression in Cable Ferrites

Suarez, Adrian; Victoria, Jorge; Torres, J.; Martínez, P.A.; Martinez, V.; Molina, Ismael; Muetsch, Steffen; Garcia-Olcina, R.; Soret, J.; Martos, Julio

doi:10.1109/emceurope48519.2020.9245745

Cited by 1 publication

(1 citation statement)

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“…Within the conducted emission range (150 kHz -30 MHz), the conductors of the system are generally too short to be considered an EMI antenna source since the impedance of possible parasitic inductors is low, and the impedance of parasitic capacitors is typically high. Nevertheless, in the radiated emissions range (from 30 MHz), the parasitic associated with conductors and power line EMI filters can be significant if conductors are long enough to be considered an unintended antenna [12,13]. External power supplies typically incorporate discrete inductors, capacitors in the AC input circuitry to implement common mode, and differential mode filters before the input bridge and the switching stage.…”

Section: Applications Of Emi Suppressor Sleeve Coresmentioning

confidence: 99%

Characterization of Nanocrystalline Cores for EMI Suppression in Cables

Suarez¹,

Victoria²,

Torres³

et al. 2021

Nanocrystals [Working Title]

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Electromagnetic interferences (EMI) can cause different kinds of problems in digital and analog systems, leading to malfunctions, system reboots, or even permanent damage to the system if this is not adequately designed or protected. Nowadays, most electronic products are connected to the main power network or are designed to be interconnected with others through cables. These cable interconnections are becoming more difficult due to the rigid restrictions related to the accomplishment of electromagnetic compatibility (EMC) compliance. When the cables of a system represent an EMI source, it cannot pass the conducted or radiated emissions test. A widely used technique to reduce these problems is applying an EMI suppressor such as a sleeve core. This EMI suppressor provides selective attenuation of undesired interference components that the designer may wish to suppress, and it does not significantly affect the intended signal. This contribution focuses on analyzing different nanocrystalline (NC) EMI suppressors’ performance intended for attenuating interferences in cables. Some NC novel samples are characterized and compare to MnZn and NiZn cores to determine this novel material’s effectiveness compared to the conventional ceramic solutions by analyzing samples with different dimensions.

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Section: Applications Of Emi Suppressor Sleeve Coresmentioning

confidence: 99%