Results 21 to 30 of about 6,749 (208)
A new method for the determination of the locking range of oscillators [PDF]
, 2007 A time-domain method for the determination of the injection-locking range of oscillators is presented. The method involves three time dimensions: the first and the second are warped time scales used for the free-running frequency and the external ...
Condon, Marissa +5 more
core +1 more source
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
doaj +1 more source
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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Fully differential electro-mechanical phase locked loop sensor circuit [PDF]
, 2013 Embedding a micro-machined sensing element in a closed loop, force feedback system is a technique commonly used to realise high performance MEMS (micro-electro-mechanical systems) sensors due to the advantages of better linearity, increased dynamic range
Wilcock, Reuben +5 more
core +1 more source
Phase jitter dynamics of first-order digital phase-locked loops with frequency-modulated input
, 2008 IEEE International Symposium on Circuits and Systems (ISCAS), Seattle, USA, 18-21 May 2008Inherent to digital phase-locked loops is frequency quantization in the number-controlled oscillator which prevents the loop from locking exactly onto its reference
Tertinek, Stefan +5 more
core +1 more source
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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Interface electronics for a CMOS electrothermal frequency-locked-loop
ESSCIRC 2007 - 33rd European Solid-State Circuits Conference, 2007 This paper describes a new implementation of a CMOS electrothermal frequency-locked-loop (FLL), whose output frequency is determined by the temperature-dependent phase shift of an electrothermal filter (ETF). The FLL maintains a constant phase shift in the ETF, and as a result drives it with a signal whose frequency is a well-defined function of ...
Zhang, C. (author) +1 more
openaire +3 more sources
Exact calculation of phase-locked loop lock-in frequency
Electronics Letters, 1986 Using a novel cycle-slip criterion, two methods of computing the lock-in frequency of phase-locked loops are reported. The lock-in frequency of a second-order loop with sinusoidal phase detector is presented as a function of system parameters, and useful estimates by the pull-out and pull-in frequencies are given.
P. Hasan, M. Brunk
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, 2010 Bang-bang phase-locked loops (BBPLLs) are inherently nonlinear due to the hard nonlinearity introduced by the binary phase detector (BPD). This paper provides an exact statistical analysis of the steady-state timing jitter in a first order BBPLL when ...
Gleeson, James +5 more
core +2 more sources
IET Generation, Transmission & Distribution, 2023 This paper proposes a new robust method for accurately and reliably estimating remote bus frequencies in a power system. Two different measurement sources for the remote bus frequency are considered, that is, the ideal Frequency Divider (FD) and the ...
Ali Farahani +3 more
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