The Study of a Fluxgate SPICE Model Based on Schmitt Trigger

2011 ◽  
Vol 483 ◽  
pp. 212-218
Author(s):  
Yue Zhao ◽  
Jing Lin Hu ◽  
Wen Zhong Lou ◽  
Long Fei Zhang
Keyword(s):  
Integrated Circuit ◽  
Schmitt Trigger ◽  
Magnetic Core ◽  
Soft Magnetic ◽  
Sensor Interface ◽  
Simulation Accuracy ◽  
Spice Model ◽  
Fluxgate Sensor ◽  
Core Characteristics ◽  
Sensor Probe

Current fluxgate sensor probe SPICE models constructed by using arc tangent transfer function method and the diode model in fluxgate sensor simulation had some disadvantages which were non convergence, low simulation accuracy, discontinuously adjusted core characteristics and the model couldn’t simulate the hysteresis characteristic. IO characteristics of Schmitt Trigger was similar to the B-H curve of soft magnetic core in shape, for this reason Schmitt trigger was used to construct fluxgate probe SPICE model. HSPICE was used in simulation. Simulation results shown that this model can simulate the real electrical properties of fluxgate probe accurately. This model can be used for fluxgate sensor interface integrated circuit research and fluxgate sensor application, and provide a reference to judge the performance for fluxgate sensors of which core parameters within a certain range.

Study on Method to Predict Life Span of Die Used for Soft Magnetic Core Motor

2013 ◽  
Vol 133 (11) ◽  
pp. 1073-1081 ◽  
Author(s):  
Hirooki Tokoi ◽  
Kinya Kobayashi ◽  
Hideaki Nagashima ◽  
Shuichi Ishizawa ◽  
Yuji Enomoto
Keyword(s):  
Life Span ◽  
Magnetic Core ◽  
Soft Magnetic

scholarly journals Modelling of Dynamic Properties of Silicon Carbide Junction Field-Effect Transistors (JFETs)

Energies ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 187 ◽  
Author(s):  
Kamil Bargieł ◽  
Damian Bisewski ◽  
Janusz Zarębski
Keyword(s):  
Silicon Carbide ◽  
Integrated Circuit ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Dynamic Properties ◽  
Modified Model ◽  
Spice Model ◽  
Capacitance Voltage ◽  
Effect Transistor ◽  
Switching Characteristics

The paper deals with the problem of modelling and analyzing the dynamic properties of a Junction Field Effect Transistor (JFET) made of silicon carbide. An examination of the usefulness of the built-in JFET Simulation Program with Integrated Circuit Emphasis (SPICE) model was performed. A modified model of silicon carbide JFET was proposed to increase modelling accuracy. An evaluation of the accuracy of the modified model was performed by comparison of the measured and calculated capacitance–voltage characteristics as well as the switching characteristics of JFETs.

Dual spiral sandwiched magnetic thin film inductor using Fe–Hf–N soft magnetic films as a magnetic core

2002 ◽  
Vol 239 (1-3) ◽  
pp. 579-581 ◽  
Author(s):  
K.H. Kim ◽  
D.W. Yoo ◽  
J.H. Jeong ◽  
J. Kim ◽  
S.H. Han ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetic Films ◽  
Magnetic Core ◽  
Magnetic Thin Film ◽  
Soft Magnetic ◽  
Soft Magnetic Films

scholarly journals Fabrication of Soft Magnetic Core Using Spark Plasma Sintering.

2000 ◽  
Vol 47 (7) ◽  
pp. 757-762 ◽  
Author(s):  
Setsuo Yamamoto ◽  
Nobutsugu Tanamachi ◽  
Sinji Horie ◽  
Hiroki Kurisu ◽  
Mitsuru Matsuura ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Magnetic Core ◽  
Soft Magnetic ◽  
Plasma Sintering ◽  
Spark Plasma

Characterization of a soft magnetic composite for use in road-embedded wireless-charging systems

2021 ◽  
pp. 1-10
Author(s):  
Kai-Yeung Li ◽  
Bill Trompetter ◽  
Maedeh Amirpour ◽  
Tom Allen ◽  
Simon Bickerton ◽  
...  
Keyword(s):  
Volume Fraction ◽  
Flexural Modulus ◽  
Magnetic Core ◽  
Analytical Models ◽  
Magnetic Composite ◽  
Wireless Charging ◽  
Soft Magnetic ◽  
Soft Magnetic Composite ◽  
Trade Offs ◽  
Wheel Loading

The ferrite magnetic core is an integral component of road-embedded wireless charging systems for electric vehicles. However, the brittleness of ferrite makes it susceptible to premature fracture due to cyclic wheel loading from vehicles. This has motivated the development of a soft magnetic composite (SMC) composed of a flexible polyurethane and crushed ferrite as an alternative. An experimental investigation was conducted into the trade-offs between mechanical, thermal and magnetic properties at ferrite volume fractions between 45.9[Formula: see text]vol% and 80.6[Formula: see text]vol%. A comparison was made between measured properties and predictions from analytical models in order to further investigate the characteristics of the composite. The investigation showed a trade-off between the increase in magnetic permeability and the reduction in strain-to-failure as ferrite volume fraction increased. In addition, a large increase in flexural modulus and thermal conductivity, along with a slight increase in flexural strength was observed. More importantly, the strain-to-failure of the composite was 20 times higher than that of ferrite even at the highest volume fraction, indicating that the SMC was successful in providing a more ductile and flexible alternative.

scholarly journals Development of Powder Soft Magnetic Core Materials

2013 ◽  
Vol 60 (3) ◽  
pp. 108-116
Author(s):  
Terukazu TOKUOKA ◽  
Tomoyuki ISHIMINE ◽  
Toru MAEDA ◽  
Kenji MATSUNUMA
Keyword(s):  
Magnetic Core ◽  
Soft Magnetic ◽  
Core Materials

scholarly journals Validation of a SPICE Model for High Frequency Electroporation Systems

Electronics ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 710
Author(s):  
Paulius Butkus ◽  
Sonata Tolvaišienė ◽  
Sebastjanas Kurčevskis
Keyword(s):  
Integrated Circuit ◽  
High Frequency ◽  
Electric Pulse ◽  
Pulsed Power ◽  
Experimental Results ◽  
Transient Processes ◽  
Model Complexity ◽  
Prototype System ◽  
Spice Model ◽  
Good Agreement

In this paper, we present an analysis and a validation of a simulation program with integrated circuit emphasis (SPICE) model for a pulse forming circuit of a high frequency electroporation system, which can deliver square-wave sub-microsecond (100–900 ns) electric field pulses. The developed SPICE model is suggested for use in evaluation of transient processes that occur due to high frequency operations in prototype systems. A controlled crowbar circuit was implemented to support a variety of biological loads and to ensure a constant electric pulse rise and fall time during electroporation to be independent of the applied buffer bioimpedance. The SPICE model was validated via a comparison of the simulation and experimental results obtained from the already existing prototype system. The SPICE model results were in good agreement with the experimental results, and the model complexity was found to be sufficient for analysis of transient processes. As result, the proposed SPICE model can be useful for evaluation and compensation of transient processes in sub-microsecond pulsed power set-ups during the development of new prototypes.

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