Results 41 to 50 of about 3,295,289 (198)
Exact calculation of phase-locked loop lock-in frequency
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
openaire +1 more source
Design of a fast-acquisition phase-locked loop for frequency control systems
Phase-locked loop (PLL) is a negative feedback control system that can achieve phase synchronization of two signals. Its filtering effect can make its passband narrow, and its output frequency automatically track the input frequency.
Chang Jian +4 more
doaj +1 more source
The Coefficient of the Voltage Induced Frequency Shift Measurement on a Quartz Tuning Fork
We have measured the coefficient of the voltage induced frequency shift (VIFS) of a 32.768 KHz quartz tuning fork. Three vibration modes were studied: one prong oscillating, two prongs oscillating in the same direction, and two prongs oscillating in ...
Yubin Hou, Qingyou Lu
doaj +1 more source
A design methodology to enable sampling PLLs to synthesise fractional-N frequencies [PDF]
A novel design methodology is proposed to enable sampling phase-locked loops (SPLL) to synthesise fractional-N frequencies. To date, SPLL can only generate integer-N frequencies.
Xu, Tao +2 more
core +2 more sources
It is required for grid-connected converters to obtain synchronous information quickly and accurately when a short-circuit fault occurs in the grid.
Chaobo DAI +3 more
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A Concept of Synchronous ADPLL Networks in Application to Small-Scale Antenna Arrays
In this paper, we introduce a reconfigurable oscillatory network that generates a synchronous and distributed clocking signal. We propose an accurate model of the network to facilitate the study of its design space and ensure that it operates in its ...
Eugene Koskin +2 more
doaj +1 more source
An Oscillator Ensemble Model of Sequence Learning
Learning and memorizing sequences of events is an important function of the human brain and the basis for forming expectations and making predictions.
Alexander Maye +4 more
doaj +1 more source
Integrated Circuit Signal Generation and Detection Techniques for Microwave and Sub-Millimeter Wave Signals [PDF]
The unabated reduction of device feature sizes in semiconductor processes, particularly in complementary metal-oxide semiconductor (CMOS) processes, has served as the enabling factor behind integrated electronic systems of ever increasing complexity and ...
Bohn, Florian
core +1 more source
DC offset in the input of phase-locked loops (PLLs) is a challenging problem since it will result in fundamental frequency oscillations in the estimated phase and frequency.
Menxi Xie +3 more
doaj +1 more source
Fully differential electro-mechanical phase locked loop sensor circuit [PDF]
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

