Results 11 to 20 of about 5,764 (263)
Efficient Mapping and Tracking the Properties of Micromechanical Resonators Using Phase-Lock Loops with Closely-Spaced Frequencies [PDF]
MicromachinesStudying the dynamical behavior of micro- and nano-mechanical systems (MEMSs and NEMSs) is essential in various fields from nonlinear dynamics to quantum technologies. Hence, it is important to precisely monitor the mechanical properties of MEMS and NEMS
Agnes Zinth, Samer Houri, Menno Poot
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An Overview of Phase-Locked Loop: From Fundamentals to the Frontier [PDF]
SensorsPhase-Locked Loops (PLLs) are fundamental building blocks in modern electronic systems, enabling precise frequency synthesis, signal synchronization, and clock generation.
Thi Viet Ha Nguyen, Cong-Kha Pham
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A Review on Micro-Watts All-Digital Frequency Synthesizers [PDF]
MicromachinesThis paper reviews recent developments in highly integrated all-digital frequency synthesizers suitable to deploy in low-power internet-of-things (IoT) applications.
Venkadasamy Navaneethan +4 more
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Radar Waveform Generator with Fuzzy Frequency Regulation [PDF]
International Journal of Telecommunications: The Phase-Locked Loop (PLL) is a common functional component in many electrical systems. Phase-locked loops (PLLs) are closed-loop feedback-driven devices producing a signal depending on the frequency and phase of reference sig-nal that comes in.
Ahmed Salem +2 more
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Small-Signal Model and Stability Control for Grid-Connected PV Inverter to a Weak Grid
Energies, 2021 This paper presents a small signal stability analysis to assess the stability issues facing PV (photovoltaic) inverters connected to a weak grid. It is revealed that the cause of the transient instabilities, either high-frequency or low-frequency ...
Antoine Musengimana +3 more
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IEEE Access, 2020 The phase-locked loop of grid-connected inverters affects their output impedance characteristics and stability. Based on the NPC, three-level LCL grid-connected inverter, this article first analyzes the frequency characteristics of the improved moving ...
Wei Luo, Dafang Wei, Jianguo Jiang
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Identification of Vibration Parameters in a Spacecraft using Kalman Filters, Numerical Search and Phase-Locked Loops [PDF]
Modeling, Identification and Control, 2000 Communication in space requires antennas that are accurately pointed. Often antennas are mounted on lightly damped space structures, that are easily set into vibration, which decreases the pointing accuracy of the antennas.
Aage Skullestad
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Energies, 2017 The control system of a doubly-fed adjustable-speed pumped-storage hydropower plant needs phase-locked loops (PLLs) to obtain the phase angle of grid voltage.
Wei Luo, Jianguo Jiang, He Liu
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Energies, 2019 Accurate and fast synchrophasor measurement is the key to the wide applications of PMUs in the system-wide monitoring and reliable operation of smart grid.
Hui Xue, Mengjie Ruan, Yifan Cheng
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Applied Sciences, 2023 The frequency synthesizer plays a crucial role in atomic clock technology. In this study, we demonstrate a direct microwave frequency synthesizer for a cesium atomic clock, employing frequency multiplication and a dual-phase-locked loop mode.
Guangkun Guo +5 more
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