Results 21 to 30 of about 41,452,026 (246)

An all-digital phase-locked loop based on variable phase accumulator

open access: yesDianzi Jishu Yingyong, 2019
This paper presents a novel all-digital phase-locked loop with variable phase accumulator circuit structure. The design of the system is completed by using EDA technology, and the system simulation experiment is carried out by using ModelSim software ...
Yang Mengwei, Tian Fan, Shan Changhong
doaj   +1 more source

Noise performance of frequency- and phase-locked CW magnetrons operated as current-controlled oscillators. [PDF]

open access: yes, 2005
Low-power continuous wave ``cooker'' magnetrons driven from industrial-quality switch-mode power supplies have been frequency locked by driving them as current-controlled oscillators in a phase-lock loop (PLL).
Carter, Richard G.   +2 more
core   +3 more sources

All digital phase-locked loop / Visiškai skaitmeninė fazės derinimo kilpa

open access: yesMokslas: Lietuvos Ateitis, 2013
The paper reviews working principles of phase-locked loop and drawbacks of classical PLL structure in nanometric technologies. It is proposed to replace the classical structure by all-digital phase-locked loop structure. Authors described the main blocks
Marijan Jurgo
doaj   +1 more source

Binary phase detector gain in bang-bang phase-locked loops with DCO jitter [PDF]

open access: yes, 2010
Bang-bang phase-locked loops (BBPLLs) are hard nonlinear systems due to the nonlinearity introduced by the binary phase detector (BPD). In the presence of jitter, the nonlinear loop is typically analyzed by linearizing the BPD and applying linear ...
Gleeson, James   +5 more
core   +1 more source

A smart DPLL for robust carrier tracking systems using uncertain rule-based IT2 fuzzy controllers

open access: yesEngineering Science and Technology, an International Journal, 2020
The carrier tracking synchronizes the receiver and transmitter oscillators with each other’s and is adopted as a closed-loop structure known as the phase-locked loop (PLL).
Mohieddin Moradi, Mehdi Ehsanian
doaj   +1 more source

Frequency quantization in first-order digital phase-locked loops with frequency-modulated input [PDF]

open access: yes, 2007
Presented at the International Workshop on Nonlinear Maps and their Applications (NOMA '07), INSA, Toulouse, December 13-14, 2007Frequency granularity in a digital phase-locked loop arises from quantization in the number-controlled oscillator which ...
Tertinek, Stefan   +2 more
core   +1 more source

A Study on Stability Control of Grid Connected DC Distribution System Based on Second Order Generalized Integrator-Frequency Locked Loop (SOGI-FLL)

open access: yesApplied Sciences, 2018
This paper studies a second order generalized integrator-frequency locked loop (SOGI-FLL) control scheme applicable for 3-phase alternating current/direct current (AC/DC) pulse width modulation (PWM) converters used in DC distribution systems.
Jin-Wook Kang   +5 more
doaj   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han   +5 more
wiley   +1 more source

Statistical analysis of first-order bang-bang phase-locked loops using sign-dependent random-walk theory [PDF]

open access: yes, 2010
Bang-bang phase-locked loops (BBPLLs) are inherently nonlinear due to the hard nonlinearity introduced by the binary phase detector (BPD). This paper provides an exact statistical analysis of the steady-state timing jitter in a first order BBPLL when ...
Gleeson, James   +5 more
core   +1 more source

Robust optical injection locking to a 250 MHz frequency comb without narrow-band optical pre-filtering [PDF]

open access: yes, 2011
A semiconductor laser was injection locked to a single optical frequency comb mode with a dither-free phase locked loop.
Wu, D.S.   +3 more
core   +2 more sources

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