Low voltage, high current DC power supply with self commutated converter using power-MOSFET

Author

Matsukawa, Tatsuya ; Shimada, Katsuhiro ; Shioyama, Masanori ; Nomura, Shinichi ; Neumeyer, Charles ; Tsuji-Iio, Shunji ; Shimada, Ryuichi

Author_Institution

Int. Cooperation Center for Sci. & Technol., Tokyo Inst. of Technol., Japan

fYear

1999

fDate

1999

Firstpage

137

Lastpage

140

Abstract

The DC power supply for a nuclear fusion experimental system based on the low aspect ratio spherical torus requires a low voltage and high current output to power a toroidal field coil consisting of a single turn center conductor. To meet such requirements, the self-commutated converter using a power-MOSFET, which is more efficient than the conventional thyristor or diode converter, is proposed. The converter has the advantage of fast switching speed, low on-state resistance and voltage gate signal. The operating characteristics of a power-MOSFET and the switching unit using four MOSFET elements are also discussed

Keywords

DC-DC power convertors; Tokamak devices; fusion reactor design; power MOSFET; power supplies to apparatus; DC power supply; high current; low voltage; power-MOSFET; self commutated converter; tokamak; Coils; Conductors; Current supplies; Diodes; Fusion reactors; Low voltage; MOSFET circuits; Power supplies; Switching converters; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1999. 18th Symposium on

Conference_Location

Albuquerque, NM

Print_ISBN

0-7803-5829-5

Type

conf

DOI

10.1109/FUSION.1999.849807

Filename

849807