Results 81 to 90 of about 532,709 (209)

Auxiliary Inverter with Zero-current Soft Switching DC/DC Converter Input

open access: yes机车电传动, 2014
An auxiliary inverter with zero-current soft switching DC/DC converter input was proposed. Two-stage transformer circuit structure was adopted, the front part of which was DC/DC converter, and the rear part of which was three-phase inverter circuit. Zero-
GAO Yongjun, ZHANG Ruifeng
doaj  

Inverter optimization of soft-switching DC-DC converter*

open access: yesAutomatika
The paper describes the influence of the magnetizing inductance of the transformer on zero-voltage switching of the primary transistors in a soft-switching full-bridge dc-dc converter with a controlled rectifier and turn-off snubber.
Marek Pastor   +3 more
doaj   +1 more source

Analysis of a Novel Soft-Switching DC–DC Converter for Reduction in Switching Loss

open access: yesPower Electronics and Drives
The conventional buck converter is the first and foremost member among the family of DC–DC converters. Major drawback of the conventional buck converter is the hard-switching that leads to many shortcomings and finally leads to poor efficiency.
Behera Siddhartha   +2 more
doaj   +1 more source

Electron transport through a metal-molecule-metal junction

open access: yes, 1999
Molecules of bisthiolterthiophene have been adsorbed on the two facing gold electrodes of a mechanically controllable break junction in order to form metal-molecule(s)-metal junctions.
Bourgoin, J. -P.   +6 more
core   +3 more sources

A ZVT Auxiliary Circuit for High Step-Up Multi-Input Converters with Diode-Capacitor Multiplier

open access: yesMajlesi Journal of Electrical Engineering
In this paper, a Zero-Voltage Transition (ZVT) non-isolated high step-up multi-input DC-DC converters is proposed which employs an auxiliary cell and diode-capacitor multiplier.
Sayed Hossein Mirlohi   +2 more
doaj   +1 more source

Zero-Voltage and Zero-Current Switching Buck-Boost Converter for PV Applications [PDF]

open access: yes, 2014
A ZVS and ZCS buck boost converter is presented for PV panel applications. The salient points are that all the switching devices are under zero-current switching during turn-on and zero-voltage switching during turn-off.
Govind, S. (Sudhin)   +2 more
core  

Design Methodology of LLC Resonant Converter for PV-Powered Li-Ion Battery Charger

open access: yesIEEE Access
Existing PV-powered Li-ion chargers used in electric vehicles and other standalone applications typically employ pulse-width modulated dc-dc converters for battery charging control.
Ahmed Y. Farag   +3 more
doaj   +1 more source

Numerical analysis of switching performance evaluators in low-voltage switching devices

open access: yes, 2015
An arc modelling is a valuable and useful tool to evaluate the switching performance of low-voltage switching devices (LVSDs) during breaking operation before testing real products. Moreover, it helps improve interruption capability of LVSDs and optimize
Golosnoy, I.O., McBride, J.W., Shin, D.
core  

A New Zero Current Switching Ultra Step-Up Converter With Low Input Current Ripple

open access: yesIET Circuits, Devices and Systems
This paper proposes a high step-up converter featuring zero current (ZC) switching (ZCS) and continuous input current to enhance efficiency. The converter integrates switched capacitor and coupled inductor techniques to improve voltage gain while ...
Eiraj Rezai, Majid Delshad, Bahador Fani
doaj   +1 more source

A Wide Input Voltage Range Unidirectional Resonant Switched‐Capacitor Converter for Fuel Cell Applications

open access: yesIET Power Electronics
This paper introduces a full bridge high voltage gain resonant switched capacitor converter (SCC) providing soft switching conditions for all power semiconductors above and below the resonant frequencies.
Sajad Afshar Zarandi   +2 more
doaj   +1 more source

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