Results 1 to 10 of about 2,220 (245)

Self-organized synchronization of digital phase-locked loops with delayed coupling in theory and experiment. [PDF]

PLoS ONE, 2017
Self-organized synchronization occurs in a variety of natural and technical systems but has so far only attracted limited attention as an engineering principle. In distributed electronic systems, such as antenna arrays and multi-core processors, a common
Lucas Wetzel, David J Jörg, Alexandros Pollakis, Wolfgang Rave, Gerhard Fettweis, Frank Jülicher   +5 more
doaj   +2 more sources

A Review on Micro-Watts All-Digital Frequency Synthesizers [PDF]

Micromachines
This paper reviews recent developments in highly integrated all-digital frequency synthesizers suitable to deploy in low-power internet-of-things (IoT) applications.
Venkadasamy Navaneethan, Boon Chiat Terence Teo, Annamalai Arasu Muthukumaraswamy, Xian Yang Lim, Liter Siek   +4 more
doaj   +2 more sources

10−21-Level optical frequency dissemination over 2067 km of noise-loaded field-deployed fiber network [PDF]

Light: Science & Applications
Achieving ultra-stable optical frequency dissemination over long-haul fiber networks is essential for numerous applications. Although optical frequency transfer systems based on optical phase-locked loops (OPLLs) have achieved unprecedented stability ...
Fa-Xi Chen, Li-Bo Li, Jiu-Peng Chen, Kan Zhao, Jian-Yu Guan, Yang Xu, Lei Hou, Fei Zhou, Cheng-Zhi Peng, Qiang Zhang, Hai-Feng Jiang, Jian-Wei Pan   +11 more
doaj   +2 more sources

A Novel MSPLL-Based Method for Frequency Synthesis in Hydrogen MASER [PDF]

Sensors
Frequency synthesis is an important aspect of an atomic clock. It is also imperative that the synthesized frequency exhibits good short term stability or, in other words, exhibits good phase noise.
Dipika Simariya, Sheeba Rani Johnson, Dileep Dharmappa, Suresh Dakkumalla, Prem Ranjan Dubey, Roopa Malali Vasanthakumar, Deva Arul Daniel, Subramanya Ganesh Thirukkodi   +7 more
doaj   +2 more sources

Designing a time-to-digital converter using quantum-dot cellular automata nanotechnology [PDF]

Scientific Reports
As a nanoscale computing paradigm, quantum-dot cellular automata (QCA) technology demonstrates significant advantages over conventional CMOS implementations, including improved device density, minimized power dissipation, and increased operational speed.
Shahram Modanlou, Mohammad Gholami
doaj   +2 more sources

Digital Phase-Locked Loops: Exploring Different Boundaries

IEEE Open Journal of the Solid-State Circuits Society
This article examines the research area of digital phase-locked loops (DPLLs), a critical component in modern electronic systems, from wireless communication devices to RADAR systems and digital processors. As the demands for higher integration levels in
Yuncheng Zhang, Dingxin Xu, Kenichi Okada   +2 more
doaj   +3 more sources

L-SHADE-Optimized Active Disturbance Rejection for Sensorless PMSM Drives Under Complex Uncertainties [PDF]

Sensors
Sensorless permanent magnet synchronous motor (PMSM) drives rely on accurate rotor electrical angle and speed estimation, vulnerable to noisy currents, quantization, and sensor biases.
Xiaoqing Chen, Tao Yang, Bowen Zhang, Ling Zhang   +3 more
doaj   +2 more sources

Low Power Clock Generator Design With CMOS Signaling

IEEE Open Journal of the Solid-State Circuits Society, 2021
The requirements for computing with higher energy efficiency in the datacenter and for longer battery life in laptop computers, cell phones, and other IoT devices while increasing performance with higher frequency and more cores, drive the needs for more
Yongping Fan, Ian A. Young
doaj   +1 more source

All‐digital built‐in self‐test scheme for charge‐pump phase‐locked loops

IET Circuits, Devices and Systems, 2021
Charge‐pump phase‐locked loop (CP‐PLL) is widely used to generate timing signals in systems on chips (SoCs). However, the number of cores embedded in SoCs, the limited I/O port resources and the cost of external test equipment lead to the increase of ...
Lanhua Xia, Jifei Tang
doaj   +1 more source

A Single-Event-Hardened Scheme of Phase-Locked Loop Microsystems for Aerospace Applications

Micromachines, 2022
In order to improve the ability of the phase-locked loop (PLL) microsystem applied in the aerospace environment to suppress the irradiation effect, this study presents an efficient charge pump hardened scheme by using the radiation-hardened-by-design ...
Qi Xiang, Hongxia Liu, Yulun Zhou
doaj   +1 more source