Results 21 to 30 of about 10,828,712 (247)

The character and design of LCC resonant converter for constant current applications

open access: yesDianzi Jishu Yingyong, 2018
LCC resonant converter has a good feature of constant current characteristics, which is the ideal driver for medium and high-power LED lighting. In this paper, based on a LCC resonant converter characteristic that the transformer primary side voltage can
Li Yong   +3 more
doaj   +1 more source

A Pseudo-Constant Frequency Constant On-Time Buck Converter With Internal Current Ripple Injection and Output DC Offset Cancellation

open access: yesIEEE Access, 2019
A constant on-time buck converter with internal inductor current synthesizer and output DC offset cancellation technique is proposed. A fully integrated inductor current synthesizer based on valley voltage detector is employed to avoid system instability
Quan Sun   +4 more
doaj   +1 more source

Research of Kalman-FOPID algorithm in numerical control constant current source

open access: yesDianzi Jishu Yingyong, 2018
In the field of optical measurement, the light source has higher requirements to the constant current source, and the existing constant current source system has the system noise and measurement noise, which affects the output precision of the current ...
Cao Zhenguan, Yu Junfeng, Li Zhiwei
doaj   +1 more source

Three-Coil Wireless Charging System Based on S-PS Topology

open access: yesEnergies
To protect the battery, radio energy transmission charging typically uses constant current (CC) charging before switching to constant voltage (CV) charging to enhance battery durability.
Kai Yan, Ruirong Dang, Wenzhen Wang
doaj   +1 more source

Micromagnetic Study of the Dependence of Output Voltages and Magnetization Behaviors on Damping Constant, Frequency, and Wire Length for a Gigahertz Spin Rotation Sensor

open access: yesSensors, 2023
In this report, we studied the dependence of output voltage on the damping constant, the frequency of the pulse current, and the wire length of zero-magnetostriction CoFeBSi wires using multiphysics simulation considering eddy currents in micromagnetic ...
Fumiko Akagi   +4 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Research on output characteristics of compensation network of electric vehicle wireless charging system

open access: yesDiance yu yibiao
Generally, wireless charging system needs to connect compensation network on both sides of the transmission coil to meet the requirements of constant current/constant voltage charging.
WANG Jiahui   +4 more
doaj   +1 more source

The Infeasibility of Constant Output Power in a Constant-Current-Fed Class-E Power Inverter

open access: yes, 1991
It was previously shown that the constant-current-fed class-E amplifier cannot be configured for a constant output voltage independent of load resistance except for the trivial case, where the output voltage is zero.
Zulinski, Robert E.   +2 more
core   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

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