Results 1 to 10 of about 3,271 (120)

A Comprehensive Evaluation of Different Power Quantities in DC Electric Arc Furnace Power Supplies

open access: yesEnergies, 2023
Conventionally, DC arc furnaces are fed by thyristor rectifiers to control the level of current or power transferred to the load. With the advancement of high-power transistors, other structures such as diode rectifiers and DC choppers have been ...
Pegah Hamedani   +2 more
doaj   +1 more source

Active filter for multi-pulse rectifiers with magnetically coupled reactor

open access: yesScientific Journal of Gdynia Maritime University, 2021
The article presents the simulation and laboratory tests of multi-pulse rectifiers with magnetically coupled reactors, connected to the power grid and cooperating with an active parallel filter (APF).
Piotr Mysiak, Adam Muc
doaj   +1 more source

Comments on “A Passive and Wireless Sensor Based on RFID Antenna for Detecting Mechanical Deformation”

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
He et al. proposed a mechanical deformation sensor based on a microstrip patch antenna matched to a radio frequency identification (RFID) integrated circuit (IC).
Mahmoud Wagih
doaj   +1 more source

Experimental Investigation of Controlled and Uncontrolled Rectifiers for Low-Power Wind Turbines

open access: yesApplied Sciences, 2023
The holistic objective of producing 100% renewable generated electricity motivates the development of low-power and efficient domestic wind turbines. The wind turbine’s efficiency can be maximized by operating it in a variable speed configuration, thus ...
Ahmad Alzahrani
doaj   +1 more source

Energy harvesting from conducted electromagnetic interference of fluorescent light for Internet of Things application

open access: yesETRI Journal, 2022
A novel energy harvesting technique that uses conducted electromagnetic interference as an energy source is presented. Conducted EMI generated from fluorescent light using a switched-mode power supply was measured and modeled as an equivalent voltage ...
Chang-Hee Hyoung, Jung-Hwan Hwang
doaj   +1 more source

Wireless Power Transfer System for Battery-Less Sensor Nodes

open access: yesIEEE Access, 2020
For the first time, the design and implementation of a fully-integrated wireless information and power transfer system, operating at 24 GHz and enabling battery-less sensor nodes, is presented in this paper.
Bilal Tariq Malik   +5 more
doaj   +1 more source

Development of High-Power Charge Pump Rectifier for Microwave Wireless Power Transmission

open access: yesIEEE Journal of Microwaves, 2022
This study theoretically and experimentally indicates that a charge pump rectifier for low-power rectifiers such as RF-ID can be applied to high-power rectifiers and can attain the same level of RF-dc conversion efficiency and twice as high power ...
Koki Miwatashi   +3 more
doaj   +1 more source

Meshed High-Impedance Matching Network-Free Rectenna Optimized for Additive Manufacturing

open access: yesIEEE Open Journal of Antennas and Propagation, 2020
Additive manufacturing using direct-write or screen printing represent low-waste methods for fabricating antennas on low-cost flexible substrates. To realize rectennas using low-resolution printing methods, high-impedance antennas with simple printable ...
Mahmoud Wagih   +2 more
doaj   +1 more source

Influence law of different rectifiers on measurement of ultrasonic flowmeters

open access: yesYou-qi chuyun, 2021
In order to explore the measurement law of ultrasonic flowmeters under different rectifiers, a calibration pipeline model with rectifiers was established, the flow field of pipelines with different rectifiers was numerically simulated by Fluent software,
Shunjia TIAN   +4 more
doaj   +1 more source

Theoretical Analysis and Novel Simulation for Single Shunt Rectifiers

open access: yesIEEE Access, 2021
Rectifiers are essential for microwave wireless power transfer (MWPT). RF-DC conversion efficiency must be improved for the practical use of MWPT. The focus of this research is related to single shunt rectifiers.
Takashi Hirakawa, Naoki Shinohara
doaj   +1 more source

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