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Title: Radio frequency-assisted fast superconducting switch

Abstract

A radio frequency-assisted fast superconducting switch is described. A superconductor is closely coupled to a radio frequency (RF) coil. To turn the switch "off," i.e., to induce a transition to the normal, resistive state in the superconductor, a voltage burst is applied to the RF coil. This voltage burst is sufficient to induce a current in the coupled superconductor. The combination of the induced current with any other direct current flowing through the superconductor is sufficient to exceed the critical current of the superconductor at the operating temperature, inducing a transition to the normal, resistive state. A by-pass MOSFET may be configured in parallel with the superconductor to act as a current shunt, allowing the voltage across the superconductor to drop below a certain value, at which time the superconductor undergoes a transition to the superconducting state and the switch is reset.

Inventors:
;
Issue Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1411390
Patent Number(s):
9837814
Application Number:
14/385,094
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03K - PULSE TECHNIQUE
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Apr 09
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Solovyov, Vyacheslav, and Li, Qiang. Radio frequency-assisted fast superconducting switch. United States: N. p., 2017. Web.
Solovyov, Vyacheslav, & Li, Qiang. Radio frequency-assisted fast superconducting switch. United States.
Solovyov, Vyacheslav, and Li, Qiang. Tue . "Radio frequency-assisted fast superconducting switch". United States. https://www.osti.gov/servlets/purl/1411390.
@article{osti_1411390,
title = {Radio frequency-assisted fast superconducting switch},
author = {Solovyov, Vyacheslav and Li, Qiang},
abstractNote = {A radio frequency-assisted fast superconducting switch is described. A superconductor is closely coupled to a radio frequency (RF) coil. To turn the switch "off," i.e., to induce a transition to the normal, resistive state in the superconductor, a voltage burst is applied to the RF coil. This voltage burst is sufficient to induce a current in the coupled superconductor. The combination of the induced current with any other direct current flowing through the superconductor is sufficient to exceed the critical current of the superconductor at the operating temperature, inducing a transition to the normal, resistive state. A by-pass MOSFET may be configured in parallel with the superconductor to act as a current shunt, allowing the voltage across the superconductor to drop below a certain value, at which time the superconductor undergoes a transition to the superconducting state and the switch is reset.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {12}
}

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Current limiting device utilizing a superconductor
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Superconducting heavy-current disconnector
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Fusing processing method
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Method and apparatus to trigger superconductors in current limiting devices
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Inductive quench for magnet protection
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RF-switched superconducting resonators and methods of switching thereof
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Superconducting switching element and method
patent-application, February 2002


RF-switched superconducting resonators and methods of switching thereof
patent-application, December 2009


Power Transmission Method Of High-Power Wireless Induction Power Supply System
patent-application, December 2011