Results 11 to 20 of about 2,532,270 (350)

Research on frequency stability of magnetic coupling wireless power transfer system

open access: yesGong-kuang zidonghua, 2021
The natural oscillation frequency of the magnetic coupling wireless power transfer system is easily affected by circuit parameters and frequency bifurcation phenomenon often occurs.
ZHANG Lian   +4 more
doaj   +1 more source

Research on load adaptive impedance matching of magnetic resonant wireless power transfer system

open access: yesGong-kuang zidonghua, 2020
In view of problem that current impedance matching methods ca't automatically adjust load impedance of magnetic resonant wireless power transfer system(MR-WPT) when load changes, which leads to reduction of energy transfer efficiency of the system, a ...
BAI Jingcai   +3 more
doaj   +1 more source

Tunable Coil-Links for Multiple-Receiver Wireless Power Transfer System With Arbitrary Position and Power Division

open access: yesIEEE Access, 2022
This study demonstrates tunable coil links for a wireless power transfer system with arbitrarily-located multiple receivers and arbitrary power division between them.
Taejun Lim, Jaemin Lee, Yongshik Lee
doaj   +1 more source

A Novel Hybrid Evaluation Method for Transfer Efficiency Assessment between Rail Transit and Public Bicycles

open access: yesPromet (Zagreb), 2020
This paper proposes a new hybrid evaluation method including Improved Analytic Hierarchy Process (IAHP), Entropy Method (EM), and Grey Comprehensive Evaluation Method (GCEM) to assess the transfer efficiency between rail transit and public bicycles.
Dongmei Yan   +3 more
doaj   +1 more source

Research on Energy Transmission Mechanism of the Electro-Hydraulic Servo Pump Control System

open access: yesEnergies, 2021
The electro-hydraulic servo pump control system (EHSPCS) is a volume control system that uses a permanent magnet synchronous motor (PMSM) with a fixed displacement pump to directly drive and control the hydraulic cylinder.
Mingkun Yang   +6 more
doaj   +1 more source

Printed Spiral Resonator for Displacement-Tolerant Near-Field Wireless Energy Transfer

open access: yesIEEE Access, 2019
Synthesis between the printed spiral coil and the planar interdigital capacitor for near-field wireless energy transfer (WET) is proposed. The proposed amalgamated design is intentionally positioned under several displacements, namely, planar offsets at ...
Lai Ly Pon   +4 more
doaj   +1 more source

Compensation for Lateral Misalignment in Litz Wire Based on Multilayer Coil Technology

open access: yesSensors, 2021
This study applies a multilayer coil technology that can compensate for a decrease in transfer efficiency due to a lateral misalignment in a practical 100 kHz-band wireless power transfer system and validates its effect on the efficiency of compensation.
Hyungjun Chang, Taejun Lim, Yongshik Lee
doaj   +1 more source

Optimum Design of Transmit Coil for Inductively Coupled Power Transfer System

open access: yesJournal of Harbin University of Science and Technology, 2020
In order to improve the transfer efficiency of the wireless power transfer system,the matching given parameters is proposed. First of all,the equivalent model of PS single-tube inverter ICPT system is established,which transform the problem of transfer ...
LENG Shi-chuan   +3 more
doaj   +1 more source

Ultrasound Sensor-Based Wireless Power Transfer for Low-Power Medical Devices

open access: yesJournal of Low Power Electronics and Applications, 2019
Ultrasonic power transfer (UPT) is a promising method for wireless power transfer technology for low-power medical applications. Most portable or wearable medical devices are battery-powered.
Mustafa F. Mahmood   +2 more
doaj   +1 more source

Effects of replacement of barley with oats on milk fatty acid composition in dairy cows fed grass silage-based diets

open access: yesJournal of Dairy Science, 2023
: This study consists of milk fatty acid (FA) data collected during 2 in vivo experiments. For this study, 8 cows from each experiment were included in a replicated 4 × 4 Latin square design.
P. Fant   +3 more
doaj   +1 more source

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