Results 61 to 70 of about 891,290 (307)
Electrica: This article presents the performance evaluation of an isolated dual active half-bridge (DAHB) converter with discrete SiC MOSFET devices. The impact of a resonant network on the SiC MOSFET DAHB under two different modes is investigated.
Veera Venkata Subrahmanya Kumar Bhajana +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.An integrated material platform combining engineered SiNx thin films and printable ZrO2 nanoparticle‐embedded resin enables broadband achromatic metalenses from the ultraviolet to visible range. The demonstrated meta‐optics achieve near‐diffraction‐limited focusing with minimal chromatic aberration.
Hyunjung Kang +3 more
wiley +1 more source
Pulse Density Modulated Soft Switching Cycloconverter
, 2010 Single stage cycloconverters generally incorporate hard switching at turn on and soft switching at turn off. This hard switching at turn on combined with the slow switching speeds of thyristors (the switch of choice for standard cycloconverters) limits ...
Adamson, Jesse Timothy
core +1 more source
3D Printing Innovations in Polymeric Porous and Patterned Architecture
Advanced Functional Materials, EarlyView.Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil +13 more
wiley +1 more source
Switching frequency limit for soft-switching mf transformer system for ac-fed traction
, 2005 — The migration to line side power conversion topologies comprising a medium frequency transformer in AC-fed propulsion systems may reduce size and weight of the conversion system.
Tommy Kjellqvist
core +2 more sources
Analysis of Soft Switching Conditions for Push-Pull Current Type Bidirectional DC/DC Converter
IEEE AccessThis article first introduces the working principle of a push-pull current type DC/DC converter, analyzes the transient working process of the converter within one working cycle of the control signal, and draws the relevant waveforms of the main ...
Xianhui Meng +3 more
doaj +1 more source
Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides
Advanced Functional Materials, EarlyView.A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri +11 more
wiley +1 more source
This paper presents a novel unbalanced capacitor voltage (UCV) soft switching boost converter under full loads range with a simple control scheme. The topology consists of a half bridge switching-leg, filter inductor, and an auxiliary circuit containing ...
Li, Ying +3 more
core +1 more source
Design of Full-bridge Soft-switching DC/DC Converter Based on LLC Resonant
机车电传动, 2019 In order to adapt to the development trend of high frequency and high power density of converter products, the working principle of LLC resonant soft-switching circuit was mainly introduced, the main mathematical relationship of LLC resonant network was ...
Xiaoyong ZHANG +4 more
doaj
IGBT Dynamic Loss Reduction through Device Level Soft Switching
Energies, 2018 Due to its low conduction loss, hence high current ratings, as well as low cost, Silicon Insulated Gate Bipolar Transistor (Si IGBT) is widely used in high power applications.
Lan Ma +4 more
doaj +1 more source