Results 31 to 40 of about 1,007,835 (292)

Research on a maximum efficiency and constant voltage output control technology for wireless power transfer system

open access: yesDianzi Jishu Yingyong, 2020
Aiming at the problems of constant voltage output and maximum efficiency of wireless power transfer technology, a wireless power transfer technology based on energy injection and phase-shifted constant voltage control methods is proposed.
Shen Pengfei, Xie Yue
doaj   +1 more source

Designing and Prototyping of Lithium-Ion Charging System Using Multi-Step Constant Current Method

open access: yesWorld Electric Vehicle Journal, 2022
The need for electrical energy means batteries have a critical role in technological developments in the future. One of the most advanced types of batteries is the lithium-ion battery.
Muhammad Nizam   +4 more
doaj   +1 more source

Dynamics of a liquid dielectric attracted by a cylindrical capacitor [PDF]

open access: yes, 2006
The dynamics of a liquid dielectric attracted by a vertical cylindrical capacitor is studied. Contrary to what might be expected from the standard calculation of the force exerted by the capacitor, the motion of the dielectric is different depending on ...
Forsythe W E   +6 more
core   +2 more sources

A Three-Coil Inductively Power Transfer System with Constant Voltage Output

open access: yesEnergies, 2018
For a traditional 2-coil system outputting constant voltage (CV), the transfer efficiency decreases drastically as transfer distance increases. To solve this problem, this essay proposes a 3-coil system which could achieve CV output and Zero Phase Angle (
Ruikun Mai   +4 more
doaj   +1 more source

Investigation on the Operating Conditions of Proton Exchange Membrane Fuel Cell Based on Constant Voltage Cold Start Mode

open access: yesEnergies, 2021
The cold start property is one of the main factors restricting the fuel cell application in the automotive field. The constant voltage cold start method of the fuel cell works under low start voltage and produces high heat, which can shorten the start-up
Yanbo Yang   +4 more
doaj   +1 more source

Digital signal propagation delay in a nano-circuit containing reactive and resistive elements [PDF]

open access: yes, 2011
The transient switching delay in a micro/nano-scale circuit containing resistive and reactive elements are sternly affected by the surge in the resistance arising from sub-linear current-voltage (I-V) characteristics limited by the velocity and current ...
Arora, Vijay Kumar   +2 more
core   +1 more source

The Electrical Motorcycle Charger for Application in a Residence [PDF]

open access: yesE3S Web of Conferences, 2020
The aim of this paper is to design the charger for an electric motorcycle and analyze the behavior of voltage and current value during charging. The AC voltage supply from a residence is converted to DC voltage to charge the energy storage system by ...
Jettanasen Chaiyan, Pothisarn Chaichan
doaj   +1 more source

Electrical characterization of the soft breakdown failure mode in MgO layers [PDF]

open access: yes, 2009
The soft breakdown (SBD) failure mode in 20 nm thick MgO dielectric layers grown on Si substrates was investigated. We show that during a constant voltage stress, charge trapping and progressive breakdown coexist, and that the degradation dynamics is ...
American Physical Society   +9 more
core   +4 more sources

A Constant Voltage/Current CPT System With Lightweight Characteristics for the Unmanned Aerial Vehicle

open access: yesIEEE Access
The large weight of the unmanned aerial vehicle (UAV) could cause a decrease in endurance mileage, while poor anti-offset performance could extend charging time and may even damage onboard equipment.
Yufang Chang   +4 more
doaj   +1 more source

Resonant wireless charging scheme

open access: yesEnergy Reports, 2023
In order to reduce the number of switching devices and passive components in the hybrid topology charging system based on resonant power transmission technology, and simplify the control strategy of primary and secondary sides, a hybrid self switching ...
Xing Guo   +4 more
doaj   +1 more source

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