Results 101 to 110 of about 1,900,438 (294)

DESAIN DAN IMPLEMENTSI SOFT SWITCHING BOOST KONVERTER DENGAN SIMPLE AUXILIARY RESONANT SWITCH (SARC)

Jurnal Teknik ITS, 2017
Boost konverter merupakan penaik tegangan DC ke tegangan DC yang mempunyai tegangan output yang lebih tinggi dibanding inputnya. Penggunaan boost konverter diera modern semakin meningkat dan dibuat dengan dimensi yang lebih kecil, berat yang lebih ringan
Dimas Bagus Saputra, Heri Suryoatmojo, Arif Musthofa   +2 more
doaj  

An Improved Mutated Predictive Control for Two-Level Voltage Source Inverter With Reduced Switching Losses

IEEE Access
This paper presents an approach called the mutated model predictive control strategy to reduce switching losses and enhance the efficiency of voltage source inverter (VSI) operating with a three-phase configuration.
Hazem Bakini, Nadhir Mesbahi, Mostefa Kermadi, Saad Mekhilef, Younes Zahraoui, Marizan Mubin, Mehdi Seyedmahmoudian, Alex Stojcevski   +7 more
doaj   +1 more source

Soft switching DC/DC converter using auxiliary circuits [PDF]

Journal of Electrical and Electronics Engineering, 2008
A novel auxiliary circuit for full-bridge PWMDC/DC converter with controlled secondary side rectifieris presented in this paper. Zero-current turn-on for allpower switches of the inverter is achieved for full loadrange from no-load to short circuit by ...
Jaroslav Dudrik, Vladimír Ruščin
doaj  

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

Advanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska, Eugene A. Eliseev, Sergei V. Kalinin, Long‐Qing Chen, Dean R. Evans, Venkatraman Gopalan   +5 more
wiley   +1 more source

Power Converter Possessing Zero-Voltage Switching and Output Isolation [PDF]

, 1995
A modified boost converter accomplishes power transfer to a load with an electrical isolation, a zero-voltage and a zero-current switching, a transformer core resetting mechanism, and component stresses identical to those in the conventional boost ...
Batarseh, Issa, Siri, Kasemsan
core  

Addressing a Special Case of Zero-Crossing Range Adjustment Detection in a Passive Autoranging Circuit for the FBG/PZT Photonic Current Transducer

Sensors
This paper analyses a special case in evaluating the passive autoranging (AR) technique that dynamically extends the measurement range of a fiber Bragg grating/piezoelectric transducer (FBG/PZT) operating with a current transformer (CT) to realize a dual-
Burhan Mir, Grzegorz Fusiek, Pawel Niewczas   +2 more
doaj   +1 more source

Nanoscale Spatial Tuning of Superconductivity in Cuprate Thin Films via Direct Laser Writing

Advanced Functional Materials, EarlyView.
Maskless direct laser writing enables local control of oxygen stoichiometry in epitaxial YBCO thin films under ambient conditions. Sub‐micrometer grayscale patterns with tunable optical response and superconducting transport properties are achieved.
Irene Biancardi, Valerio Levati, Jordi Alcalà, Thomas Günkel, Nicolas Lejeune, Riccardo Girelli, Alejandro V. Silhanek, Valeria Russo, Narcís Mestres, Daniela Petti, Anna Palau, Edoardo Albisetti   +11 more
wiley   +1 more source

Hybrid Control Switching Technology for LLC Resonant Converter

Energies
Aiming at the problem of the circuit operating frequency changing beyond the regulation range and zero switching not being guaranteed when the input voltage range of the LLC resonant converter is large, a hybrid control technology with a variable ...
Jie Zhang, Zhixiao Cai
doaj   +1 more source

Operando Tracking of Oxygen‐Vacancy Dynamics and Negative Capacitance in Ca‐Doped BiFeO3

Advanced Functional Materials, EarlyView.
Operando electrochemical impedance spectroscopy, combined with electrocoloration, enables a direct correlation between real‐space ionic redistribution and the corresponding frequency‐domain electrical response. In lateral Ca‐doped BiFeO3 devices, time‐resolved impedance snapshots capture the evolution from bulk‐dominated mixed conduction to an ...
Jeonghun Suh, Heung‐Sik Park, Jong‐Sook Lee, Chan‐Ho Yang   +3 more
wiley   +1 more source

Research on High Efficiency Soft-Switching Power Supply for Maglev Controller Applications

机车电传动, 2015
Aiming at the fatal issues of low efficiency, serious fever and low reliability of hard-switching topologies employed in the traditional power supply for maglev controller, a novel high efficiency soft-switching power supply was developed by employing ...
LU Guotao, MA Hongbo, LIUWenjun, WANG Jianfei, GUO Yuhua   +4 more
doaj