Results 91 to 100 of about 6,749 (208)

Analysis and simulation of phase-locked loops

, 1996
Phase-Locked Loops (PLL's) are used widely and their presence is extremely common in modern systems such as communications, radar, telemetry, and time and frequency control.
Bekir, Ahmad
core   +1 more source

Adaptive complex coefficient‐filtered extended states observer type three‐phase enhanced phase‐locked loop

IET Power Electronics
This paper proposes an adaptive complex coefficient filtered (CCF) full order extended state observer (ESO) type three phase enhanced phase locked loop (EPLL), which is employed in matrix reactance frequency converter (MRFC) for rotating vectors ...
Baojun Ge, Shuo Huang, Minghui Wang, Yue Wang, Pin Lv   +4 more
doaj   +1 more source

Generation of 2 THz Span Optical Comb in a Tunable Fiber Ring Based Optical Frequency Comb Generator [PDF]

, 2007
Davies, Phil A., Shen, Pengbo, Gomes, Nathan J., Shillue, B.   +3 more
core   +1 more source

Low Power Techniques for Phase-Locked Loops

, 2007
本論文主題在於使用0.35-μm標準互補式金氧半製程，實現一個低耗電的鎖相迴路，主要針對以下主題提出新的方法。降低壓控振盪器及除頻器的功率消耗，降低輸出緩衝器的切換功率消耗，及不需除頻器的鎖相迴路。 首先提出一個鎖相迴路，其中包含相位偵測器、電荷汞及利用電源電壓調節來降低功率消耗的壓控振盪器及除頻器。為了降低輸出緩衝器的動態切換功率消耗,使用了一個電荷回收技術,這個輸出緩衝器每次輸出轉態前會先進入三態(tri-state)模式,並利用此時進行電荷回收的動作。 論文的最後提出了利用隙縫相位偵測技術 ...
陳彥文, Chen, Yen-Wen
core  

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

Sensors (Basel)
Simariya D, Johnson SR, Dharmappa D, Dakkumalla S, Dubey PR, Vasanthakumar RM, Daniel DA, Thirukkodi SG.   +7 more
europepmc   +1 more source

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

Light Sci Appl
Chen FX, Li LB, Chen JP, Zhao K, Guan JY, Xu Y, Hou L, Zhou F, Peng CZ, Zhang Q, Jiang HF, Pan JW.   +11 more
europepmc   +1 more source

Chip scale coil stabilized Brillouin laser driving a room temperature trapped ion qubit. [PDF]

Nat Commun
Chauhan N, Caron C, Isichenko A, Song M, Wei Z, Helaly N, Liu K, Wang J, Niffenegger RJ, Blumenthal DJ.   +9 more
europepmc   +1 more source

A Subsampling Phase-Locked Loop with a Dual Charge Pump Based on Capacitor Multipliers for CMOS Image Sensor. [PDF]

Micromachines (Basel)
Lin Y, Wang B, Jin L, Tang Z, Ye F, Xie R, Wu L, Shi G, Liu H.   +8 more
europepmc   +1 more source

A Spur Suppression Technique for Phase-Locked Frequency Synthesizers

, 2007
隨著無限通訊系統的快速發展，對於具有高精確度，低功率消耗與快速鎖定時間鎖相迴路的需求也隨著顯著增加。在設計鎖相迴路時，常常需要在鎖定時間的長短與輸出端參考側帶的強度大小之間作取捨，這個情形限制了鎖相迴路的電路表現，同時也降低了在設計鎖相頻率合成器時的自由度。 在這篇論文中，我們介紹了一個適用於整除數頻率合成器的離散式相位頻率偵測器/充電泵浦架構，在不改變系統迴路參數的情形下，可以有效的降低突波雜訊的強度。為了要抑制此架構中所使用開迴路延遲線的非理想效應 ...
李韋良, Lee, Wei-Liang
core