Results 91 to 100 of about 5,302 (227)

System and component design and test of a 10 hp, 18,000 rpm AC dynamometer utilizing a high frequency AC voltage link, part 1 [PDF]

open access: yes
Hard and soft switching test results conducted with one of the samples of first generation MOS-controlled thyristor (MCTs) and similar test results with several different samples of second generation MCT's are reported.
Alan, Irfan, Lipo, Thomas A.
core   +1 more source

A New Soft Switching Dual-input High Step-up Converter for Renewable Energy Systems [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization
In this study, a new converter featuring an auxiliary circuit configuration is presented, designed to facilitate soft switching conditions while minimizing the number of components used.
Hayder Ameer Hasan Al-Ameedee   +3 more
doaj   +1 more source

Voltage Clamping Circuits for Large Voltage Step-Down Coupled Inductor Converters

open access: yesRenewable Energy and Sustainable Development, 2019
Water desalination processes require power converters with large voltage step-down ratios and high efficiencies.  Coupled‑inductor (tapped-inductor) circuits can achieve this where the whole inductor carries current during one switch state but only part ...
Richard Pollock
doaj   +1 more source

Application of natural commutation technique to an improved cycloconverter type high-frequency link inverter with center-tapped transformer [PDF]

open access: yes, 2005
This thesis presents a new isolated cycloconverter type high frequency (HF) link dc to ac power converter (inverter) that consists of three arms of bidirectional switches at transformer secondary.
Nge, Chee Lim
core  

Boost-based MPPT for the MTM PCDU of the Bepicolombo mission [PDF]

open access: yes, 2008
BepiColombo is an ESA mission to Mercury to be launched in 2013. A better knowledge of the origin and evolution of the planet, of its structure and vestigial atmosphere, of its magnetosphere, and of the origin of its magnetic field are the main ...
Alou Cervera, Pedro   +9 more
core  

A New Family of Soft Single Switched DC-DC Converters with Lossless Passive Snubber

open access: yesMajlesi Journal of Electrical Engineering
In this paper, a novel lossless snubber is introduced that provides ZVS conditions for both On and Off instant of converter switches. On one hand, the energy of the snubber is optimally transmitted to the output so that no significant losses are imposed ...
Shabnam Nasr Esfahani   +2 more
doaj  

Gate driver, snubber and circuit design considerations for fast‐switching series‐connected SiC MOSFETs

open access: yesIET Power Electronics
Series connection of Silicon Carbide (SiC) Metal‐Oxide‐Semiconductor Field‐Effect Transistors (MOSFETs) is an interesting solution to design switches for voltages that are not yet commercially available or limited for single‐die devices.
Tobias Nieckula Ubostad   +1 more
doaj   +1 more source

Highly Efficient Isolated Multiport Bidirectional DC/DC Converter for PV Applications

open access: yesIEEE Access
This study proposes a novel isolated multiport bidirectional DC/DC converter (IMBC) that combines soft-switching (SS) and resistor-capacitor-diode (RCD) snubber circuits for battery charge and discharge applications in photovoltaic (PV) power systems ...
Hedra Mahfouz Ibrahim Saleeb   +6 more
doaj   +1 more source

Aeroservoelastic Testing of a Sidewall Mounted Free Flying Wind-Tunnel Model [PDF]

open access: yes, 2008
A team comprised of the Air Force Research Laboratory (AFRL), Northrop Grumman, Lockheed Martin, and the NASA Langley Research Center conducted three j wind-tunnel tests in the Transonic Dynamics Tunnel to demonstrate active control technologies relevant
Coulson, David A.   +4 more
core   +1 more source

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