Flux pump with a superconductor and superconducting...

Details Flux pump with a superconductor and superconducting... Flux pump with a superconductor and superconducting...

2005-10-25

2005-10-25

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Including superconductivity

C361S019000

Reexamination Certificate

active

06958898

ABSTRACT:
A device includes a flux pump and an electromagnet to be fed thereby for the production of highly constant magnetic fields of high field strength. In a flux pump of the rectifier type, switches used are MOSFETs. These MOSFETs include HTcsuperconductor material at operating temperatures. Preferably, the flux pump and a coil of the electromagnet are arranged in one and the same cryostat housing.

REFERENCES:
patent: 3835369 (1974-09-01), Zoleta
patent: 4688132 (1987-08-01), Dustmann
patent: 4709314 (1987-11-01), van de Klundert et al.
patent: 5665959 (1997-09-01), Fossum et al.
patent: 5965959 (1999-10-01), Gamble et al.
patent: 5990459 (1999-11-01), Feustel et al.
patent: 6420842 (2002-07-01), Gold
“Study of Full-wave Superconducting Rectifier-type Flux-pumps”, Qiuliang Wang et al.,IEEE Transactions on Magnetics, vol. 32, No. 4, pp. 2699-2702, Jul. 1996.
“On fully conducting rectifiers and fluxpumps. A review. Part 2: Commutation modes, characteristics and switches”, L.J.M. van de Klundert et al.,Cryogencis, pp. 267-277, May 1981.
“The 11thInternational Symposium on Power Semiconductor Devices and ICs”, IEEE Electron Devices Society, May 1999.
“Fully superconducting rectifiers and fluxpumps Part 1: Realized methods for pumping flux”, L.J.M. van de Klundert et al.,Cryogenics, pp. 195-206, Apr. 1981.

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