DocumentCode
1097694
Title
Cryogenic Low-Voltage/High-Current DC Power Source Using Multi-Parallel-Connected MOSFETs
Author
Kondo, Yuichi ; Fukano, Shohei ; Ninomiya, Akira ; Ishigohka, Takeshi
Author_Institution
Seikei Univ., Musashino, Japan
Volume
19
Issue
3
fYear
2009
fDate
6/1/2009 12:00:00 AM
Firstpage
2337
Lastpage
2340
Abstract
The authors have proposed a cryogenic low-voltage/high-current DC power source using multi-parallel-connected MOSFETs for an excitation power source of superconducting coils. It has been confirmed that the power source can operate at 77 K in liquid nitrogen bath. The fundamental idea and some experimental results are presented. The experiment using 200 MOSFETs connected in parallel are carried out. The forward-direction voltage drop at 77 K has been measured. The excitation current of the superconducting coil can be increased and decreased arbitrarily. The experimental results show good prospect of this type of DC power source not only for the excitation of superconducting coils but also for the forced discharging of the coils.
Keywords
MOSFET; superconducting coils; MOSFET; coil discharging; cryogenic DC power source; superconducting coils; temperature 77 K; Charge and discharge; MOSFET; cryogenic DC power source; superconducting coil;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2009.2018215
Filename
5109555
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