Results 81 to 90 of about 5,302 (227)
Origin of Enhanced Dielectric Tunability in Antiferroelectric Ceramic Systems
Advanced Functional Materials, Volume 35, Issue 2, January 9, 2025.Tunable dielectric materials are widely used in high‐power and high‐speed electronics. Dielectric response, in general, strongly depends on the operating temperature, external bias, and applied AC electric field. Here, the origin of the enhanced dielectric tunability in antiferroelectric ceramics is attributed to the extrinsic contributions of the ...
Vida Jurečič +3 more
wiley +1 more source
High-power converters for space applications [PDF]
Phase 1 was a concept definition effort to extend space-type dc/dc converter technology to the megawatt level with a weight of less than 0.1 kg/kW (220 lb./MW). Two system designs were evaluated in Phase 1.
Cooper, Randy, Park, J. N.
core +1 more source
Design considerations for a high-power dual active bridge DC-DC converter with galvanically isolated transformer [PDF]
, 2017 Multi-megawatt scale isolated DC-DC converters are likely to become increasingly popular as means to interconnect the MVDC grids of different voltage levels. Threephase dual active bridge DC-DC (3DAB) converters operating with the zero-voltage switching (
Lee, Youngsil +3 more
core +1 more source
Detailed Analysis of a Regenerative Active Clamping Snubber for a Phase-Shifted Converter
IEEE AccessThe phase-shifted converter (PSFB) is one of the most used converters for applications where high power and galvanic isolation are required. To achieve zero voltage switching (ZVS) on the primary side these converters use the leakage inductance of the ...
Dorin Petreus, Toma Patarau
doaj +1 more source
International Journal of Photoenergy, 2014 The main objective of this work is to study the behaviour of the solar PV systems and model the efficient Grid-connected solar power system. The DC-DC MPPT circuit using chaotic pulse width modulation has been designed to track maximum power from solar ...
T. Ajith Bosco Raj +6 more
doaj +1 more source
Analysis of Solar PV Application Based on Bidirectional Inverter
MATEC Web of Conferences, 2018 Building a DC-DC converter with high step-up, low cost and high efficiency from low DC voltage is the requirement in many applications. It is achieved by employing a front end boost converter based full bridge inverter on bidirectional inverter.
Maideen Abdhulkader Jeylani A. +3 more
doaj +1 more source
High-frequency high-voltage high-power DC-to-DC converters [PDF]
The current and voltage waveshapes associated with the power transitor and the power diode in an example current-or-voltage step-up (buck-boost) converter were analyzed to highlight the problems and possible tradeoffs involved in the design of high ...
Owen, H. A., Jr. +2 more
core +1 more source
Silicon controlled rectifier polyphase bridge inverter commutated with gate-turn-off thyristor [PDF]
, 1986 A polyphase SCR inverter (10) having N switching poles, each comprised of two SCR switches (1A, 1B; 2A, 2B . . . NA, NB) and two diodes (D1B; D1B; D2A, D2B . . . DNA, DNB) in series opposition with saturable reactors (L1A, L1B; L2A, L2B . . .
Edwards, Dean B., Rippel, Wally E.
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Snubbing Circuit Realization Based on Numerical Techniques
Journal of Engineering and Sustainable Development, 2012 One of the most important and major problems that face the controllable devices for industrial applications, and solid-state switches for pulsed power applications, is the high rate of current and voltage changes during the switching transients of ...
Mohammed Nasser Al-Turfi +1 more
doaj
High Speed Solid State Circuit Breaker [PDF]
, 1993 The U.S. Army Research Laboratory, Fort Monmouth, NJ, has developed and is installing two 3.3 MW high speed solid state circuit breakers at the Army's Pulse Power Center. These circuit breakers will interrupt 4160V three phase power mains in no more than
Podlesak, Thomas F.
core +1 more source