Results 81 to 90 of about 6,749 (208)

A study on high-performance single-phase phase-locked loop method based on synchronous sampling SDFT

机车电传动
In the traction drive control system of electric locomotives and rolling stock, the grid-side converter obtains phase information through a phase-locked loop and carries out precise control.
CHEN Zhibo, LI Xueming, GAN Weiwei, GAO Jian, HUANG Shoudao   +4 more
doaj  

Folding of Phase Noise Spectra in Charge-Pump Phase-Locked Loops Induced by Frequency Division

, 2010
In charge-pump phase-locked loops, the reference signal samples the phase delay between reference and feedback signal. When a frequency divider is present in the loop, the spectrum folding of the VCO phase noise caused by the inherent sub-sampling ...
Luca Collamati, Andrea L. Lacaita, LEVANTINO, SALVATORE, L. Collamati, Salvatore Levantino, LACAITA, ANDREA LEONARDO, SAMORI, CARLO, Carlo Samori   +7 more
core   +1 more source

Study on Double Phase-Locked Loop on the Synthetic Inertia Control of Offshore Wind Farm Frequency Regulation

发电技术
To build the new power system with the main body of new energy, the offshore wind farm (OWF) is an important part and has been rapidly developed in coastal cities.
LIU Lin, WANG Dalong, QI Xiao, ZHOU Zhenbo, LIN Huanxin, CAI Chuanwei   +5 more
doaj   +1 more source

Impact of Frequency Heterogeneity on Mutually Synchronized Spatially Distributed 24 GHz PLLs

IEEE Open Journal of Circuits and Systems
This research analyzes the mutual self-organized synchronization of phase-locked loops (PLLs) in the presence of variations in the free-running frequency of a PLL.
Christian Hoyer, Jens Wagner, Frank Ellinger   +2 more
doaj   +1 more source

Filter for third order phase locked loops

, 1973
Filters for third-order phase-locked loops are used in receivers to acquire and track carrier signals, particularly signals subject to high doppler-rate changes in frequency.
Crow, R. B., Tausworthe, R. C.
core   +1 more source

Phase-Locked Loops

Description:This learning module is provided by Work-Ready Electronics and covers phase-locked loops. Work-Ready Electronics modules are intended to be used either independently or integrated with current electronics curricula in college programs.

core  

A modified midtread frequency quantization scheme for digital phase-locked loops

, 2019
A novel modified midtread quantizer is proposed for number-controlled oscillator frequency quantization in digital phase-locked loops (DPLLs). We show that DPLLs employing the proposed quantizer provide significantly improved cycle slip performance ...
Roh, H, Cheun, K
core  

Frequency division using cascaded phase-locked loops

, 1971
In many practical communication systems it is necessary to generate phase coherent subharmonics of an input tone. A useful system for accomplishing this task is a system of phase-locked loops in cascade. It is shown that when the feed-forward function is
Abshier, Curtis B.
core   +1 more source

Jitter minimization in Digital Transmission using dual phase locked loops

, 2005
Timing jitter is a concern in high frequency timing circuits. Its presence can degrade system performance in many high-speed applications. In this paper, a new method for minimization of timing jitter due to phase locked loops is described.
Noras, J.M., Abou El Ela, M., AlMashary, B., Telba, A.,   +3 more
core  

Phase-Controlled Apertures Using Heterodyne Optical Phase-Locked Loops [PDF]

, 2008
In this letter, we demonstrate the use of an electronic feedback scheme using a voltage controlled oscillator (VCO) to control the optical phase of individual semiconductor lasers (SCLs) phase locked to a common reference laser using heterodyne optical ...
Kewitsch, Anthony, Hashemi, Hossein, Rakuljic, George, Liang, Wei, Yariv, Amnon, Aflatouni, Firooz, Satyan, Naresh   +6 more
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