Results 91 to 100 of about 8,777,763 (297)

Zero-Voltage Zero-Current Switching Full Bridge PWM Converter with Reduced Filter Size

open access: yes, 2011
An improved zero-voltage zero-current switching (ZVZCS) full bridge PWM converter is proposed in this paper. The proposed converter consists of two full bridge inverters in the primary side and two rectifiers in the secondary side and total power is ...
Moon, GunWoo, Cho, In Ho, Kim, Duk You
core   +1 more source

"Optical code label switching and its applications, invited paper at Photonics in Switching, Herakleion Greece, 2006

open access: yes, 2006
With current mature optical device technology for processing optical codes (OCs), OC label switchings now become promising for the future photonic networkings.
CINCOTTI, GABRIELLA   +4 more
core  

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

open access: yesAdvanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski   +3 more
wiley   +1 more source

Zero-Current Switching Two-Transformer Phase-Shift Full-Bridge Converter using Voltage Ripple

open access: yes, 2005
This paper presents a Zero-Current Switching(ZCS) two-transformer phase-shift full-bridge(TTFB) converter using voltage ripple. The proposed converter provides Zero-Voltage Switching(ZVS) of leading leg switches and ZCS of lagging leg switches using ...
문건우, 윤명중, 윤현기
core   +1 more source

A Family of Zero-Voltage-Transition Bridgeless Power-Factor-Correction Circuits With a Zero-Current-Switching Auxiliary Switch

open access: yesIEEE Transactions on Industrial Electronics, 2011
A novel zero-voltage-transition high-efficiency bridgeless power-factor-correction (PFC) circuit with a zero-current-switching auxiliary switch was proposed, analyzed, and experimentally verified. An assist circuit, consisting of a resonant inductor, two blocking diodes, a clamping circuit, an autotransformer, and an auxiliary MOSFET switch, was used ...
Tsai, Hsien-Yi   +2 more
openaire   +2 more sources

Current‐Driven Chirality Detection of Magnetic Textures in Cylindrical Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
Current‐assisted anisotropic magnetoresistance measurements in individual Ni/Au cylindrical nanowires enable detection of vortex chirality near Au segments and selective magnetic reversal in defined wire sections at magnetic fields lower than the propagation field. This approach provides a simple, cost‐effective, and non‐invasive method for probing and
Javier Rial   +6 more
wiley   +1 more source

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri   +12 more
wiley   +1 more source

A New Family of Zero-Current-Switching Variable Frequency dc-dc Converters

open access: yes, 2020
-A new family of zero-current-switching variablefrequency dc-dc converters is presented. It employs two unidirectional current switches, one diode, two small reactive components and a filter capacitor.
Giorgio Spiazzi, Paolo Mattavelli
core  

Magneto‐Ionic Devices With Polymer‐Based Electrolytes

open access: yesAdvanced Functional Materials, EarlyView.
Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler   +3 more
wiley   +1 more source

An improved zero-voltage and zero-current-switching full-bridge PWM converter using a simple resonant circuit

open access: yes, 2019
An improved zero-voltage and zero-current-switching full-bridge pulsewidth modulation (ZVZCS-FB-PWM) de-to-de converter is presented and analyzed. An auxiliary resonant circuit, which consists of a switch and a capacitor, are added to provide zero ...
Seok, KW, Kwon, BH
core  

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