Development of a High-Stability Flat-Top Pulsed Magnetic Field Facility

A high stability flat-top pulsed magnetic field has both high field strength and high field stability simultaneously, which can be used for the high precision scientific experiments. In this paper, we present such a high stability flat-top pulsed magnetic field facility developed in the Wuhan Nation...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2014-09, Vol.29 (9), p.4532-4537
Main Authors: Xiao, Houxiu, Ma, Yue, Lv, Yiliang, Ding, Tonghai, Zhang, Song, Hu, Fei, Li, Liang, Pan, Yuan
Format: Article
Language:English
Subjects:
Applied sciences
Batteries
Bypass circuit
Bypasses
Circuit stability
Circuits
Electric circuits
Electrical engineering. Electrical power engineering
Exact sciences and technology
Field strength
flat-top pulsed magnetic field
high precision scientific experiments
high stability
Insulated gate bipolar transistors
Magnetic circuits
Magnetic fields
Magnetic flux
ppm
PWM
Resistance
Ripples
Stability
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Summary:A high stability flat-top pulsed magnetic field has both high field strength and high field stability simultaneously, which can be used for the high precision scientific experiments. In this paper, we present such a high stability flat-top pulsed magnetic field facility developed in the Wuhan National High Magnetic Field Center. A passive bypass circuit is developed to regulate current up to tens of thousands amperes, as well as a 25 T/200 ms flat-top pulsed magnetic field with a ripple of 250 ppm (0.025%). The main circuit scheme of the facility as well as the preliminary experimental results will be presented in this paper.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2013.2285125