Development of galvanic isolators on the basis of nanostructures from spin-valve magnetoresistive effect

Belyakov, P. A.; Kostyuk, D. V.; Abanin, I. E.; Amelichev, V. V.; Orlov, E. P.; Vasil’ev, D. V.; Kasatkin, S. I.; Murav'ev, A. M.; Крикунов, А. И.; Shamanaev, S. V.

doi:10.1134/s0005117916120134

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“…In 2005, S. Park et al [15], in the modeling of a giant magnetoresistive isolator using spin valves for high-speed digital data transmission, estimated that the giant magnetoresistive isolator with an effective maximum transmission rate of 250 Mbit/s, but the input coil current produces a damping effect as it varies, resulting in distortion of the current waveform. In 2015, Belyakov et al [16] fabricated nanostructured current isolators with spin-valve magnetoresistive effect, obtaining magnetoresistive elements with 7-8% level of GMR effect at room temperature. In recent years, many universities have been engaged in the research of giant magnetoresistive isolators, and in 2022, Han Tao et al [17] completed the system design and experimental validation in the project of giant magnetoresistive isolator, and the coil part of the giant magnetoresistive isolator is a copper material with a line width of 6 μm and a thickness of 1 μm, which ensures the reliability of the magnetic field signals it generates.…”

Section: Introductionmentioning

confidence: 99%

Research progress of giant magnetoresistive isolator

LI,

WU,

et al. 2024

Fourth International Conference on Sensors and Information Technology (ICSI 2024)

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During the entire electronic system data transmission process, sensors can be used to capture information, and more importantly, isolators can be used to ensure the integrity of data transmission. For a long time, optocoupler isolators have been used to achieve electrical isolation. With the progress of sensing technology and the rapid development of the semiconductor industry, using giant magnetoresistance isolation technology to achieve electrical isolation is more conducive to chip integration. This article first introduces the giant magnetoresistance effect, the explanation of its theoretical model, and the areas that still need to be studied. Then, the principle and working process of the giant magnetoresistance isolator are discussed with its structure as the core. Finally, the development direction of giant magnetoresistance isolation devices is prospected.

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Section: Introductionmentioning

confidence: 99%