scholarly journals Output Characteristics and Circuit Modeling of Wiegand Sensor

Sensors ◽  
2019 ◽  
Vol 19 (13) ◽  
pp. 2991 ◽  
Author(s):  
Xiaoya Sun ◽  
Tsutomu Yamada ◽  
Yasushi Takemura
Keyword(s):  
Equivalent Circuit ◽  
Circuit Simulation ◽  
Output Pulse ◽  
Power Source ◽  
Internal Resistance ◽  
Pulse Voltage ◽  
Simulink Simulation ◽  
Magnetic Wire ◽  
Output Characteristics ◽  
Significant Attention

A fast magnetization reversal in a twisted FeCoV wire induces a pulse voltage in a pick-up coil wound around a wire. The Wiegand sensor is composed of this magnetic wire and the pick-up coil. As the output pulse voltage does not depend on a changing ratio of the applied magnetic field to switch the magnetization of the wire, the Wiegand sensor is used for to perform rotation and other detections. Recently, the Wiegand sensor has attracted significant attention as a power supply for battery-less operation of electric devices and for energy harvesting. In this study, we propose a concept of obtaining an intrinsic pulse voltage from the Wiegand sensor as its power source, and demonstrate its effectiveness in circuit simulation. The equivalent circuit for the Wiegand sensor is expressed by the intrinsic pulse voltage, internal resistance, and inductance of the pick-up coil. This voltage as a power source and circuit parameters are determined by MATLAB/Simulink simulation. The output voltage calculated using the equivalent circuit of the Wiegand sensor agrees with the experimentally measured results.

scholarly journals Self-Oscillating Boost Converter of Wiegand Pulse Voltage for Self-Powered Modules

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5373
Author(s):  
Xiaoya Sun ◽  
Haruchika Iijima ◽  
Stefano Saggini ◽  
Yasushi Takemura
Keyword(s):  
Power Supply ◽  
Electricity Generation ◽  
Power Source ◽  
Boost Converter ◽  
Pulse Voltage ◽  
Pickup Coil ◽  
Induced Voltage ◽  
Dc Voltage ◽  
Magnetic Wire ◽  
Self Powered

This paper introduces a new method of electricity generation using a Wiegand sensor. The Wiegand sensor consists of a magnetic wire and a pickup coil wound around it. This sensor generates a pulse voltage of approximately 5 V and 20 µs width as an induced voltage in the pickup coil. The aim of this study is to generate a DC voltage of 5 V from the sensor, which is expected to be used as a power source in self-powered devices and battery-less modules. We report on the design and verification of a self-oscillating boost converter circuit in this paper. A DC voltage obtained by rectifying and smoothing the pulse voltage generated from the Wiegand sensor was boosted by the circuit. A stable DC output voltage in the order of 5 V for use as a power supply in electronics modules was successfully obtained. A quantitative analysis of the power generated by the Wiegand sensor revealed a suitable voltage–current range for application in self-powered devices and battery-less modules.

Simulated Power Source Based on Output Characteristics of Solar Cell.

1993 ◽  
Vol 113 (6) ◽  
pp. 753-759 ◽  
Author(s):  
Kuniho Tanaka ◽  
Etsuo Sakoguchi ◽  
Eiji Yamada
Keyword(s):  
Solar Cell ◽  
Power Source ◽  
Output Characteristics

Internal resistance of a tree-based power source

2017 ◽  
Vol 9 (6) ◽  
pp. 063104 ◽  
Author(s):  
Zhibin Hao ◽  
Wenbin Li ◽  
Jiangming Kan ◽  
Junguo Zhang ◽  
Guozhu Wang
Keyword(s):  
Power Source ◽  
Internal Resistance

scholarly journals A New Parameter-Extraction Method for DGS and its Application to the Low-Pass Filter

2004 ◽  
Vol 27 (2) ◽  
pp. 119-123 ◽  
Author(s):  
Haiwen Liu ◽  
Xiaowei Sun ◽  
Zhengfan Li
Keyword(s):  
Equivalent Circuit ◽  
Extraction Method ◽  
Circuit Simulation ◽  
Equivalent Circuit Model ◽  
Design Procedure ◽  
Parameter Extraction ◽  
Defected Ground Structure ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

A new and simple parameter-extraction method for the equivalent circuit of defected ground structure (DGS) is presented. Using this method, circuit simulation, based on the DGS equivalent-circuit model, show excellent agreements with the electromagnetic (EM) simulation. Further, our method is applied effectively to design a low-pass filter (LPF) with DGS. Comparison between simulation and measurement confirm the validity of the LPF configuration and design procedure. Simple structure and high power handling capability are obtained from the proposed LPF.

Design and Simulation of Electrochemical Equivalent Circuit for Extended-gate FET pH Sensor Based on Experimental Value Using LTSPICE XVII

2021 ◽  
Author(s):  
Shaiful Bakhtiar Hashim ◽  
Zurita Zulkifli ◽  
Sukreen Hana Herman
Keyword(s):  
Equivalent Circuit ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Ph Sensor ◽  
Spice Simulation ◽  
Discrete Component ◽  
Ph Values ◽  
Spice Model ◽  
Effect Transistor ◽  
Output Characteristics

Abstract A SPICE model for extended-gate field-effect transistor (EGFET) based pH sensor was developed using standard discrete components. Capacitors and resistors were used to represent the sensing and reference electrodes in the EGFET sensor system and the values of the discrete component were varied to see the output of the transistor. These variations were done to emulate the EGFET sensor output in different pH values. It was found that the experimental transfer and output characteristics of the EGFET were very similar to those from the SPICE simulation. Other than that, the changes of value components in the equivalent circuit did not affect the transfer and output characteristics graph, but the capacitor value produced significant output variation in the simulation. This can be related to the modification on the equivalent circuit was done with additional voltage, VSB (source to bulk) to produce the different VT values at different pH.

scholarly journals Estimation of Equivalent Circuit Parameters of Single-Phase Transformer by Using Chaotic Optimization Approach

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1697 ◽  
Author(s):  
Martin Ćalasan ◽  
Danilo Mujičić ◽  
Vesna Rubežić ◽  
Milovan Radulović
Keyword(s):  
Parameter Estimation ◽  
Equivalent Circuit ◽  
Single Phase ◽  
Classical Method ◽  
Short Circuit ◽  
Average Error ◽  
Optimization Approach ◽  
Power Load ◽  
Equivalent Circuit Parameters ◽  
Output Characteristics

This paper deals with parameter estimation of single-phase transformer equivalent circuit by using Chaotic Optimization Approach (COA). Unknown transformer equivalent circuit parameters need to be accurately estimated for the best possible matching between the measured and the estimated transformer output characteristics (for example, output power—load resistance characteristic). Unlike literature approaches which apply different estimation techniques and are based either on the nameplate data or the load data obtained from experiments, in this paper the use of COA is evaluated on both types of input data. For two single-phase transformers, different with respect to machine power and voltage levels, the COA-based parameter estimation is compared to various literature techniques as well as to classical method based on open-circuit and short-circuit tests. The results show that COA outperforms other approaches in terms of average error between the measured and the estimated values of the primary current, secondary current and secondary voltage at full load, or between the measured and the estimated output characteristics. The effectiveness of COA is additionally confirmed through its application on laboratory 2kVA, 220 V/110 V, 50 Hz single-phase transformer.

scholarly journals Studies on Dynamic Properties of Ultracapacitors Using Infinite r–C Chain Equivalent Circuit and Reverse Fourier Transform

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4583
Author(s):  
Shailendra Rajput ◽  
Alon Kuperman ◽  
Asher Yahalom ◽  
Moshe Averbukh
Keyword(s):  
Mathematical Model ◽  
Fourier Transform ◽  
Equivalent Circuit ◽  
Dynamic Behavior ◽  
Double Layer ◽  
Electrochemical Impedance ◽  
Dynamic Properties ◽  
Internal Resistance ◽  
Simulation Software ◽  
Specific Power

The specific power storage capabilities of double-layer ultracapacitors are receiving significant attention from engineers and scientific researchers. Nevertheless, their dynamic behavior should be studied to improve the performance and for efficient applications in electrical devices. This article presents an infinite resistor–capacitor (r–C) chain-based mathematical model for the analysis of double layer ultracapacitors. The internal resistance and capacitance were measured for repetitive charging and discharging cycles. The magnitudes of internal resistance and capacitance showed approximately ±10% changes for charge-discharge processes. Electrochemical impedance spectroscopy investigations revealed that the impedance of a double-layer ultracapacitor does not change significantly in the temperature range of (−30 °C to +30 °C) and voltage range of (0.3376–2.736 V). The analysis of impedance data using the proposed mathematical model showed good agreement between the experimental and theoretical data. The dynamic behavior of the ultracapacitor was successfully represented by utilizing the proposed infinite r–C chains equivalent circuit, and the reverse Fourier transform analysis. The r–C electrical equivalent circuit was also analyzed using the PSIM simulation software to study the dynamic behavior of ultracapacitor parameters. The simulation study yields an excellent agreement between the experimental and calculated voltage characteristics for repetitive charging-discharging processes.

scholarly journals Research on output characteristics of wireless power transmission power source based on transforming network

2019 ◽  
Vol 2019 (16) ◽  
pp. 2890-2892
Author(s):  
WenRui Liu ◽  
Lingyan Lin ◽  
Muqin Tian ◽  
Chunyu Xu ◽  
Wenjie Zhang
Keyword(s):  
Power Transmission ◽  
Power Source ◽  
Transmission Power ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Output Characteristics

scholarly journals Biosensor Using a One-Port Interdigital Capacitor: A Resonance-Based Investigation of the Permittivity Sensitivity for Microfluidic Broadband Bioelectronics Applications

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 340 ◽  
Author(s):  
Giovanni Crupi ◽  
Xiue Bao ◽  
Oluwatosin John Babarinde ◽  
Dominique M. M.-P. Schreurs ◽  
Bart Nauwelaers
Keyword(s):  
Equivalent Circuit ◽  
Circuit Simulation ◽  
Equivalent Circuit Model ◽  
Microfluidic Channel ◽  
Circuit Model ◽  
Daily Lives ◽  
Fem Simulations ◽  
Interdigital Capacitor ◽  
High Frequency Structure Simulator ◽  
Local Equivalent

Electronics is a field of study ubiquitous in our daily lives, since this discipline is undoubtedly the driving force behind developments in many other disciplines, such as telecommunications, automation, and computer science. Nowadays, electronics is becoming more and more widely applied in life science, thus leading to an increasing interest in bioelectronics that is a major segment of bioengineering. A bioelectronics application that has gained much attention in recent years is the use of sensors for biological samples, with emphasis given to biosensors performing broadband sensing of small-volume liquid samples. Within this context, this work aims at investigating a microfluidic sensor based on a broadband one-port coplanar interdigital capacitor (IDC). The microwave performance of the sensor loaded with lossless materials under test (MUTs) is achieved by using finite-element method (FEM) simulations carried out with Ansoft’s high frequency structure simulator (HFSS). The microfluidic channel for the MUT has a volume capacity of 0.054 μL. The FEM simulations show a resonance in the admittance that is reproduced with a five-lumped-element equivalent-circuit model. By changing the real part of the relative permittivity of the MUT up to 70, the corresponding variations in both the resonant frequency of the FEM simulations and the capacitance of the equivalent-circuit model are analyzed, thereby enabling assessment of the permittivity sensitivity of the studied IDC. Furthermore, it is shown that, although the proposed local equivalent-circuit model is able to mimic faithfully the FEM simulations locally around the resonance in the admittance, a higher number of circuit elements can achieve a better agreement between FEM and equivalent-circuit simulation over the entire broad frequency going range from 0.3 MHz to 35 GHz.

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