Results 31 to 40 of about 307,301 (300)

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

Current-Controlled Negative Differential Resistance due to Joule Heating in TiO2

open access: yes, 2011
We show that Joule heating causes current-controlled negative differential resistance (CC-NDR) in TiO2 by constructing an analytical model of the voltage-current V(I) characteristic based on polaronic transport for Ohm's Law and Newton's Law of Cooling ...
A. M. Bratkovsky   +7 more
core   +1 more source

A novel soft-switching double modulation converter (DMC) [PDF]

open access: yes, 1995
This paper introduces a new and simple power converter topology by which both the amplitude and the duty cycle are modulated to achieve soft switching characteristic in a standard half bridge configuration.
Ho, WC, Pong, MH, Poon, FNK
core   +1 more source

Switchable resolution in soft x-ray tomography of single cells. [PDF]

open access: yes, 2020
The diversity of living cells, in both size and internal complexity, calls for imaging methods with adaptable spatial resolution. Soft x-ray tomography (SXT) is a three-dimensional imaging technique ideally suited to visualizing and quantifying the ...
Chao, Weilun   +10 more
core   +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

Comparison of single-phase matrix converter and H-bridge converter for radio frequency induction heating [PDF]

open access: yes, 2007
This paper compares the newly developed single-phase matrix converter and the more conventional H- bridge converter for radio frequency induction heating.
Bingham, Chris   +3 more
core   +1 more source

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

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

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

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

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