Characterization of Inductor Magnetic Cores for Cryogenic Applications

Yin, Shiyuan; Mehrabankhomartash, Mahmoud; Cruz, Alfonso; Graber, Lukas; Saeedifard, Maryam; Evans, Simon J.; Kapaun, Florian; Revel, I.; Steiner, Gerhard; Ybanez, Ludovic; Park, Chanyeop

doi:10.1109/ecce47101.2021.9595353

Cited by 15 publications

(8 citation statements)

References 9 publications

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“…This indicates that the core material is no longer effective, confirming the result stated in Ref. 6. The nanocrystalline cores maintain performance except for an insignificant decrease in impedance.…”

Section: Resultssupporting

confidence: 84%

“…This research aims at applying the results of Ref. 6 to construct a common mode choke inductor suitable for cryogenic detector systems and comparing its performance to classic NiZn- or MnZn-based cores. The inductor is characterized in terms of its impedance over frequency curve and not its magnetic properties for easier use in electronics engineering design documentation.…”

Section: Introductionmentioning

confidence: 99%

“…Recently developed nanocrystalline and amorphous core materials have been shown to perform much better at low temperatures as evaluated in Ref. 6. This research aims at applying the results of Ref.…”

Section: Introductionmentioning

confidence: 99%

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Construction and testing of a common mode choke for cryogenic detector pre-amplifiers

Richerzhagen

Hopgood

2023

J. Astron. Telesc. Instrum. Syst.

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.Common-mode choke inductors are useful tools for resolving grounding issues in large detector systems. Using inductive components on cryogenic pre-amplifier boards has so far been prevented by the poor low-temperature performance of common ferrite materials such as NiZn and MnZn. Recently developed nanocrystalline and amorphous ferrite materials promise improved performance up to the point where using magnetics at liquid nitrogen temperatures becomes feasible. This research applies the work of Yin et al. on characterizing ferrite materials by constructing and testing a common mode choke inductor for use on detector pre-amplifiers for the ELT first generation instruments.

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Section: Resultssupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

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Construction and testing of a common mode choke for cryogenic detector pre-amplifiers

Richerzhagen

Hopgood

2023

J. Astron. Telesc. Instrum. Syst.

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show abstract

“…Recently-developed nanocrystalline and amorphous core materials have been shown to perform much better at low temperatures as evaluated in Ref. [1]. This research aims at applying the results of Ref.…”

Section: Introductionmentioning

confidence: 99%

“…This research aims at applying the results of Ref. [1] to construct a common mode choke inductor suitable for cryogenic detector systems and comparing its performance to classic NiZn or MnZn based cores. The inductor is characterized in terms of its impedance over frequency curve and not its magnetic properties for easier use in electronics engineering design documentation.…”

Section: Introductionmentioning

confidence: 99%

Construction and Testing of a Common Mode Choke for Cryogenic Detector Pre-Amplifiers

Richerzhagen,

Hopgood

2023

Preprint

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Common-mode choke inductors are useful tools for resolving grounding issues in large detector systems. Using inductive components on cryogenic pre-amplifier boards has so far been prevented by the poor low-temperature performance of common ferrite materials such as NiZn and MnZn. Recently developed nanocrystalline and amorphous ferrite materials promise improved performance up to the point where using magnetics at liquid mitrogen temperatures becomes feasible. This research applies the work of Yin et al. 1 on characterizing ferrite materials by constructing and testing a common mode choke inductor for use on detector pre-amplifiers for the ELT first generation instruments.

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GaN-based cryogenic temperature power electronics for superconducting motors in cryo-electric aircraft

Wadsworth

Thrimawithana

Zhao

et al. 2023

Supercond. Sci. Technol.

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Climate change has spurred a shift to electric transportation, but aviation faces challenges with electric energy storage and propulsion. Cryogenically cooled superconductingmotors, along with cryogenically cooled power electronics, offer a solution to increase the efficiency and power density of electric aircraft. This paper evaluates the feasibility of cryogenic power electronics by characterizing new technologies (GaN, nanocrystalline) using new experimental techniques. It is found that the on resistance reductions of GaN E-HEMTs at cryogenic temperatures depend on the maximum blocking voltage of the device, and the size of the gate resistor for ohmic p-GaN devices. Different types of nanocrystalline cores are shown to vary greatly in their behavior at cryogenic temperatures, which is measured using a modified core loss measurement circuit. Further analysis shows that the losses of a GaN based cryogenic inverter could potentially halve that of an equivalent Si based inverter

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Characterization of Inductor Magnetic Cores for Cryogenic Applications

Cited by 15 publications

References 9 publications

Construction and testing of a common mode choke for cryogenic detector pre-amplifiers

Construction and testing of a common mode choke for cryogenic detector pre-amplifiers

Construction and Testing of a Common Mode Choke for Cryogenic Detector Pre-Amplifiers

GaN-based cryogenic temperature power electronics for superconducting motors in cryo-electric aircraft

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