Abstract
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.
Highlights
IntroductionThe 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
Electrical and Computer Engineering, Yokohama National University, Yokohama 240-8501, Japan; Department of Electrical, Management and Mechanical Engineering, University of Udine, 33100 Udine, Italy; Abstract: This paper introduces a new method of electricity generation using a Wiegand sensor
We designed a self-oscillating boost converter circuit connected to the Wiegand sensor
Summary
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. In the Internet of Things (IoT) society, electronic devices and modules can be connected to the internet and exchange information through various sensors [1]. A significant number of batteries that need expensive and time-consuming maintenance are required for these devices, which cause environmental pollution Energy harvesting, such as collecting small amounts of energy from the surroundings and converting them into electrical energy, is expected to solve this problem [3,4]. This research introduces the use of a self-oscillating boost converter circuit for electricity generation using a Wiegand sensor [6,7] as an energy-harvesting element. Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations
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