Results 71 to 80 of about 48,317 (290)

New DC/DC High Step Up Isolated Converter with ZVS [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2014
In this paper we presents a soft switch sepic, flyback converter. At first the converter have hard switching in main switch and completely analysis then added auxiliary circuit for soft switching Auxiliary circuit in the converter is not only soft ...
Ehsan Movahedi   +2 more
doaj  

A three-switch high-voltage converter [PDF]

open access: yes, 1999
A novel single active switch two-diodes high-voltage converter is presented. This converter can operate into a capacitor-diode voltage multiplier, which offers simpler structure and control, higher efficiency, reduced electromagnetic interference (EMI ...
Pietkiewicz, Andzrej   +2 more
core   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Accurate Modeling and Efficiency Optimization of High Frequency BCM Mode Boost Converter Based on GaN Devices

open access: yesCSEE Journal of Power and Energy Systems
With further population of gallium nitride (GaN) devices, traditional boost topology has an opportunity to obtain a higher power density with a higher switching frequency.
Yifeng Wang   +3 more
doaj   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton   +11 more
wiley   +1 more source

A Soft Switched DC-DC Boost Converter for Use in Grid Connected Inverters [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2017
This paper presents a soft-switching DC-DC boost converter, which can be utilized in renewable energy systems such as photovoltaic array, and wind turbine connections to infinite bus of a big power network, using grid connected inverters. In the proposed
S. Jalilzadeh, M. Pakdel
doaj   +1 more source

Analysis of AC link topologies in non-isolated DC/DC triple active bridge converter for current stress minimization [PDF]

open access: yes, 2017
This paper presents analysis of the non-isolated DC/DC triple active bridge (TAB) converter under various purely inductor-based AC link topologies. The objective of the analysis is to find the topology that incorporates the least value of the AC link ...
Aboushady, Ahmed A.   +2 more
core   +3 more sources

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

A Constant-Power Battery Charger with Inherent Soft Switching and Power Factor Correction [PDF]

open access: yes, 2003
A battery charging circuit, which operates as a constant power source, is proposed in this paper. By maintaining a constant output power throughout the charging process, the circuit reduces the size of thermal installation which would normally be ...
Pong, BMH, Poon, NK, Tse, CK
core   +4 more sources

Simulation and Implementation a Non-Isolated Buck Converter at ZCS Condition [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2013
A new soft-switching resonant inverting-buck converter with high efficiency is presented. The proposed converter steps down and inverts the input voltage.
Nahid Hematian, Masoud Jabari
doaj  

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