Results 81 to 90 of about 48,819 (306)

PWM Soft-Switched Converters With A Single Active Switch

IEEJ Transactions on Industry Applications, 1997
This paper presents several converters which, having only a single active switch, are able to operate with PWM characteristics in a soft switching way. In addition such converters can work in high switching frequencies for wide load range without great limitations. In order to illustrate the operating principles of these converters a detailed analysis,
Barbosa, Lúcio R., Coelho, Ernane A. A., Vieira, João B., Freitas, Luiz C. de, Farias, Valdeir J.   +4 more
openaire   +2 more sources

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, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Analysis of Soft Switching Conditions for Push-Pull Current Type Bidirectional DC/DC Converter

IEEE Access
This 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, Chunjiang Zhang, Jianxing Feng, Zhizhong Kan   +3 more
doaj   +1 more source

A Soft-Switching SEPIC with Multi-Output Sources

, 2017
In this paper, a soft-switching single-ended-primary-inductance converter (SEPIC) with multi-output sources is proposed. The proposed SEPIC has the following advantages: (1) The conversion efficiency can be increased. To incorporate a soft-switching cell
Cheng-Tao Tsai, Jye-Chau Su
core   +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, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +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, Qing ZHANG, Peinan RAO, Zhidong GENG, Pan LUO   +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, Hongbing Xu, Alex Q. Huang, Jianxiao Zou, Kai Li   +4 more
doaj   +1 more source

An Experimental Evaluation of SiC Switches in Soft-Switching Converters

IEEE Transactions on Power Electronics, 2014
Soft-switching converters equipped with insulated gate bipolar transistors (IGBTs) in silicon (Si) have to be dimensioned with respect to additional losses due to the dynamic conduction losses originating from the conductivity modulation lag. Replacing the IGBTs with emerging silicon carbide (SiC) transistors could reduce not only the dynamic ...
Ranstad, Per, Nee, Hans-Peter, Linner, Jörgen, Peftitsis, Dimosthenis   +3 more
openaire   +3 more sources

Soft-switching High Frequency AC Link Buck-Boost DC-DC Converters

, 2015
AC link universal power converters are a relatively new class of power converters with numerous advantages. The reason they get the universal power converters name is that inputs and outputs of these converters can be either dc or ac; therefore, they can
Tao Wang (12008)
core  

Properties and synthesis of passive lossless soft-switching PWM converters

, 1999
This paper derives general topological and electrical properties common to all lossless passive soft-switching converters with defined characteristics and proposes a synthesis procedure for the creation of new converters. The synthesis procedure uses the
Smith, K. Mark, Smedley, Keyue Ma
core   +1 more source