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With the development of semiconductor technology, semiconductor switching devices have the advantages of fast switching speed, high stability, so they are popular in pulsed power research field, but the use of semiconductor switch causes the main circuit be complex and the cost increase, and the switching speed is limited by the drift velocity of the charge carriers for the particular device. So it...
The National Spherical Torus Experiment (NSTX) is undergoing a significant upgrade. The upgrade increases the toroidal field and pulse length, adds three new diverter coils and a second neutral beam injection (NBI) system. The magnet coil power supply systems for the NSTX have been redesigned with many modifications to reflect NSTX upgrade needs. The NSTX power supply system includes three major parts...
In order to provide improved and expanded experimental capabilities, the existing Transrex power supplies at PPPL are to be upgraded and modernized. Each of the 39 power supplies consists of two six pulse silicon controlled rectifier sections forming a twelve pulse power supply. The first modification is to split each supply into two independent six pulse supplies by replacing the existing obsolete...
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