Symmetry breaking effect of dc bias current on magnetoimpedance in microwire with helical anisotropy: Application to magnetic sensors

2011 ◽  
Vol 110 (8) ◽  
pp. 086105 ◽  
Author(s):  
M. Ipatov ◽  
V. Zhukova ◽  
J. Gonzalez ◽  
A. Zhukov
Keyword(s):  
Symmetry Breaking ◽  
Bias Current ◽  
Magnetic Sensors ◽  
Breaking Effect ◽  
Dc Bias ◽  
Helical Anisotropy

Effect of DC-Bias Current in Perpendicular Magnetic Recording

2004 ◽  
Vol 28 (3) ◽  
pp. 275-278
Author(s):  
K. Taguchi ◽  
S. Takahashi ◽  
K. Yamakawa ◽  
K. Ouchi
Keyword(s):  
Magnetic Recording ◽  
Bias Current ◽  
Perpendicular Magnetic Recording ◽  
Dc Bias

scholarly journals A Dual Rising Edge Shift Algorithm for Eliminating the Transient DC-Bias Current in Transformer for a Dual Active Bridge Converter

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4264
Author(s):  
Michal Gierczynski ◽  
Lech M. Grzesiak ◽  
Arkadiusz Kaszewski
Keyword(s):  
Phase Shift ◽  
Power Flow ◽  
Bias Current ◽  
Compensation Algorithm ◽  
Dual Active Bridge ◽  
Simple Implementation ◽  
Dc Bias ◽  
Fast Settling ◽  
Parameter Values ◽  
Laboratory Prototype

This paper deals with a well-known problem of the transient DC-bias current occurring during a phase shift transition in dual active bridge (DAB) DC/DC converters. This phenomenon, if not compensated, can cause damage to the converter or deteriorate its performance. One aim of this paper is to present a solution which allows for the elimination of the undesired transient DC-bias component in current waveforms. This solution is the dual rising edge shift (DRES) compensation algorithm. It provides a very simple implementation and fast settling time within the first half of a switching period. Moreover, the solution is independent on any measurements or system parameter values. It is based on the double-sided single phase shift (DSSPS) modulation, which is described in detail along with a converter model in steady-state. Then, the mechanisms leading to the transient DC-bias are explained, and the compensation algorithm is derived. The performance of the algorithm has been tested using a laboratory prototype. A comprehensive set of tests, involving rapid step changes in power flow and frequency sweep, are provided. Finally, the features of the proposed algorithm are briefly discussed.

scholarly journals Exploring and Exploiting the Symmetry-Breaking Effect of Cyclodextrins in Mechanomolecules

Symmetry ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1249 ◽  
Author(s):  
Bruns
Keyword(s):  
Symmetry Breaking ◽  
Chemical Synthesis ◽  
Low Cost ◽  
Molecular Machine ◽  
Advanced Materials ◽  
Breaking Effect ◽  
Planar Chirality ◽  
Conical Shape ◽  
Wide Availability ◽  
Molecular Rings

Cyclodextrins (CDs) are cone-shaped molecular rings that have been widely employed in supramolecular/host–guest chemistry because of their low cost, high biocompatibility, stability, wide availability in multiple sizes, and their promiscuity for binding a range of molecular guests in water. Consequently, CD-based host–guest complexes are often employed as templates for the synthesis of mechanically bonded molecules (mechanomolecules) such as catenanes, rotaxanes, and polyrotaxanes in particular. The conical shape and cyclodirectionality of the CD “bead” gives rise to a symmetry-breaking effect when it is threaded onto a molecular “string”; even symmetrical guests are rendered asymmetric by the presence of an encircling CD host. This review focuses on the stereochemical implications of this symmetry-breaking effect in mechanomolecules, including orientational isomerism, mechanically planar chirality, and topological chirality, as well as how they support applications in regioselective and stereoselective chemical synthesis, the design of molecular machine prototypes, and the development of advanced materials.

scholarly journals Analysis of asymmetric property with DC bias current on thin-film magnetoimpedance element

AIP Advances ◽  
2017 ◽  
Vol 8 (5) ◽  
pp. 056618 ◽  
Author(s):  
Hiroaki Kikuchi ◽  
Chihiro Sumida
Keyword(s):  
Thin Film ◽  
Bias Current ◽  
Dc Bias

Fast DC-Bias Current Control of Dual Active Bridge Converters With Feedforward Compensation

2020 ◽  
Vol 67 (11) ◽  
pp. 2587-2591
Author(s):  
Zhendong Ji ◽  
Qiantong Wang ◽  
Dongye Li ◽  
Yichao Sun
Keyword(s):  
Bias Current ◽  
Current Control ◽  
Dual Active Bridge ◽  
Dc Bias
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