Results 41 to 50 of about 144,693 (302)

Research and Application of a Parameter Adaptive Enhanced Single-phase Phase-locked Loop

Kongzhi Yu Xinxi Jishu, 2021
In a railway traction power supply system, there are problems of network voltage distortion such as frequency / phase mutation, amplitude drop, harmonic pollution and so on.
CHEN Xin, HU Jingyu, PENG Yun, FU Gang
doaj  

Digital phase-locked loop [PDF]

, 1975
An digital phase-locked loop is provided for deriving a loop output signal from an accumulator output terminal. A phase detecting exclusive OR gate is fed by the loop digital input and output signals.
Cliff, R. A.
core   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

A Practicable Optoelectronic Oscillator with Ultra-Low Phase Noise

Photonics
In this paper, an optoelectronic oscillator (OEO) with ultra-low phase noise and high stability based on the injection-locked and phase-locked loop is proposed.
Ziyue Zheng, Jinlong Yu, Ju Wang, Chuang Ma, Hao Luo, Xuemin Su, Ye Gao   +6 more
doaj   +1 more source

Pulsed phase locked loop strain monitor [PDF]

, 1982
The RF output of a voltage controlled oscillator (VCO) is periodically gated to a transducer which produces acoustic waves in a bolt. The reflected acoustic waves are converted to electrical signals by the transducer and gated to a mixer which also ...
Heyman, J. S.
core   +1 more source

Coherence Cloning Using Semiconductor Laser Optical Phase-Lock Loops [PDF]

, 2009
We demonstrate the concept of coherence cloning where the coherence properties of a high-quality spectrally stabilized fiber laser are transferred to a commercially available high-power DFB semiconductor laser (SCL) using an optical phase-lock loop.
Liang, Wei, Satyan, Naresh, Yariv, Amnon
core   +1 more source

Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film

Advanced Functional Materials, EarlyView.
This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun, Andrea Capa Salinas, Stephen D. Wilson, Haijing Zhang   +3 more
wiley   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Digital second-order phase-locked loop [PDF]

, 1973
A digital second-order phase-locked loop is disclosed in which a counter driven by a stable clock pulse source is used to generate a reference waveform of the same frequency as an incoming waveform, and to sample the incoming waveform at zero-crossover ...
Carl, C., Holes, J. K., Tegnelia, C. R.
core   +1 more source

Multistability of Phase-Locking and Topological Winding Numbers in Locally Coupled Kuramoto Models on Single-Loop Networks

, 2016
Determining the number of stable phase-locked solutions for locally coupled Kuramoto models is a long-standing mathematical problem with important implications in biology, condensed matter physics and electrical engineering among others.
Coletta, Tommaso, Delabays, Robin, Jacquod, Philippe   +2 more
core   +1 more source