Results 51 to 60 of about 20,323 (302)
Simple digital only test approach for embedded charge-pump phase-locked loops. [PDF]
, 2001 Techniques for a simple automated test approach for high performance fully embedded charge-pump phase-locked loops (CP-PLLs) are explained. The test approach is focused towards non-invasive high volume production testing of PLLs using digital only ...
Burbidge, M., Richardson, Andrew M. D.
core
Reinvestigation of Single-Phase FLLs
IEEE Access, 2019 Besides well-known phase-locked loops, frequency-locked loops (FLLs) are applicable to grid synchronization for grid-tied power converters. The models, principles, and algorithm structures of existing notch filter-based single-phase FLLs are often ...
Xiuqiang He, Hua Geng, Geng Yang
doaj +1 more source
Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective
Advanced Functional Materials, EarlyView.Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk +3 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Highly hydrophilic surfaces (water contact angle, ≈17.7°) exhibiting surprising water slipping performance (sliding angle, ≈7.3°) are successfully prepared via simple chemisorption of polyethylene glycol (PEG) organosilane and subsequent alkali‐treatment.
Hyeonjin Kim +5 more
wiley +1 more source
Radiation Tolerant, Low Noise Phase Locked Loops in 65 nm CMOS Technology
EPJ Web of Conferences, 2018 This work presents an introduction to radiation hardened Phase Locked Loops (PLLs) for nuclear and high-energy physics application. An experimental circuit has been fabricated and irradiated with Xrays up to 600 Mrad.
Prinzie Jeffrey +4 more
doaj +1 more source
Independent-phase current control of a three-phase VSC under unbalanced operating conditions
The Journal of Engineering, 2018 This study presents an independent phase-current-control architecture for a three-phase voltage source converter. It comprises three independent single-phase phase locked loops (PLLs), and a dual-loop scheme including an outer loop (responsible for ...
Xianghua Shi, Shaahin Filizadeh
doaj +1 more source
Spatially‐Resolved Coherence of Organic Molecular Spins at Room‐Temperature
Advanced Functional Materials, EarlyView.Molecular spin qubits are emerging as a promising quantum sensing technology. This paper studies the variation in coherence and sensitivity in both crystalline and thin‐film samples by combining microscopy and room temperature optically detected coherent control.
Adrian Mena +5 more
wiley +1 more source
Robust three-dimensional best-path phase-unwrapping algorithm that avoids singularity loops [PDF]
, 2009 In this paper we propose a novel hybrid three-dimensional phase-unwrapping algorithm, which we refer to here as the three-dimensional best-path avoiding singularity loops (3DBPASL) algorithm.
Burton, David +8 more
core +1 more source
Phase-locked loops and their design
, 2021 This chapter provides a comprehensive overview of the recent attempts for designing of the advanced three-phase and single-phase phase-locked loops (PLLs). The operating principle of both three-phase and single-phase PLLs is explained.
Wenzhao Liu +3 more
core +1 more source
Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives
Advanced Materials, EarlyView.Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi +4 more
wiley +1 more source