Results 31 to 40 of about 49,259 (308)

A Consideration on Maximum Efficiency of Resonant Circuit of Inductive Power Transfer System with Soft-Switching Operation

open access: yesWorld Electric Vehicle Journal, 2019
By using bi-directional inductive power transfer (IPT) systems as battery chargers for electric vehicles (EVs), battery charging operations become convenient and safe.
Ryosuke Ota   +2 more
doaj   +1 more source

Minimum Current Optimization of DBSRC Considering the Dead-Time Effect

open access: yesEnergies, 2022
In a dual-bridge series resonant converter (DBSRC) working at a high switching frequency, the dead-time effect is a serious issue. When the minimum current trajectory (MCT) method is applied, the inductor current cannot be minimized due to the dead-time ...
Jiawen Yang, Yu Zhang, Xinmi Wu
doaj   +1 more source

Efficient Multi-Port Bidirectional Converter With Soft-Switching Capability for Electric Vehicle Applications

open access: yesIEEE Access, 2021
In this paper, to solve the hard-switching operation problem and the lack of existing a bidirectional power flow path from output to the energy storage device of the conventional three-port converter, a new soft-switched bidirectional multi-port ...
Rasoul Faraji   +5 more
doaj   +1 more source

Research on efficiency optimisation of DAB converters considering current stress and soft‐switching

open access: yesIET Power Electronics, 2022
To solve the problem of low efficiency of the dual active bridge (DAB) converter under the traditional single‐phase‐shift control, a natural soft‐switching current stress optimisation (NSS‐CSO) method is proposed by considering the current stress ...
Jinhui Zeng   +7 more
doaj   +1 more source

Reactive power minimization of dual active bridge DC/DC converter with triple phase shift control using neural network [PDF]

open access: yes, 2014
Reactive power flow increases dual active bridge (DAB) converter RMS current leading to an increase in conduction losses especially in high power applications.
Aboushady, Ahmed   +2 more
core   +2 more sources

A novel passive snubber soft-switching inverter

open access: yesDianzi Jishu Yingyong, 2018
An improved simple passive snubber inverter is proposed in order to solve the problem of complicated snubber circuit in the traditional soft-switching topology. Only a few passive components are used in the novel topology.
Wang Xiaobiao, Qiu Jiaxiong
doaj   +1 more source

Sistema híbrido inteligente para el control y operación de un convertidor elevador en modo Soft-Switching

open access: yesRevista Iberoamericana de Automática e Informática Industrial RIAI, 2022
En este trabajo de investigación se presenta una estrategia de control inteligente implementada en un convertidor elevador con topología de medio puente. El sistema se usa para asegurar que el convertidor funcione en modo "Soft-Switching". El primer paso
Luis Alfonso Fernandez-Serantes   +2 more
doaj   +1 more source

Accurate Measurement of Dynamic on-State Resistances of GaN Devices under Reverse and Forward Conduction in High Frequency Power Converter [PDF]

open access: yes, 2020
Because of trapped charges in GaN transistor structure, device dynamic ON-state resistance RDSon is increased when it is operated in high frequency switched power converters, in which device is possibly operated by zero voltage switching (ZVS) to reduce ...
Evans, Paul   +4 more
core   +4 more sources

DC-DC High-Step-Up Quasi-Resonant Converter to Drive Acoustic Transmitters

open access: yesEnergies, 2022
This paper proposes a quasi-resonant step-up DC-DC converter to provide the DC-link voltage for piezoelectric transmitters (PZETs). The resonance not only provides a soft-switching condition for the converter switches, but also helps to decrease the ...
Emad Roshandel   +3 more
doaj   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

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