Results 31 to 40 of about 18,604 (310)
Eletrônica de Potência, 2017 This paper proposes the application of an accurate, fast and stable method to be used by the control systems in the selective compensation of harmonic currents in three phase systems susceptible to frequency changes and phase jumps.
Cássio Xavier Rocha +3 more
doaj +1 more source
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
openaire +1 more source
Techniques for automatic on chip closed loop transfer function monitoring for embedded charge pump phase locked loops. [PDF]
, 2003 Charge Pump Phase locked loops are used in a variety of applications, including on chip clock synthesis, symbol timing recovery for serial data streams, and generation of frequency agile high frequency carrier signals.
Burbidge, Martin J. +5 more
core +1 more source
Small-Signal Model and Stability Control for Grid-Connected PV Inverter to a Weak Grid
Energies, 2021 This paper presents a small signal stability analysis to assess the stability issues facing PV (photovoltaic) inverters connected to a weak grid. It is revealed that the cause of the transient instabilities, either high-frequency or low-frequency ...
Antoine Musengimana +3 more
doaj +1 more source
Fiber Ring Based Optical Frequency Comb Generator with Comb Line Spacing Tunability [PDF]
, 2005 A fiber ring based Optical Frequency Comb Generator with tunability in comb line spacing, fast tuning of 10 MHz per step with speed much better than 0.1 s, and a high coherence is ...
Shillue, William P. +11 more
core +1 more source
Sensors, 2018 This paper presents a 612–1152 MHz Injection-Locked Frequency Multiplier (ILFM). The proposed ILFM is used to send an input signal to a receiver in only the I/Q mismatch calibration mode. Adopting a Phase-Locked Loop (PLL) to calibrate the receiver
SungJin Kim +10 more
doaj +1 more source
Molecular Oncology, EarlyView.The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka +9 more
wiley +1 more source
Phase Locked Loop Test Methodology [PDF]
, 2008 Phase locked loops are incorporated into almost every large-scale mixed signal and digital system on chip (SOC). Various types of PLL architectures exist including fully analogue, fully digital, semi-digital, and software based.
Burbidge, Martin, Richardson, Andrew
core
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, 2021 We experimentally demonstrated a power split ratio and optical delay phase dependent dual-loop optical feedback to investigate the suppression of frequency-fluctuations induced due to delayed optical feedback.
Haroon Asghar, John G. McInerney
doaj +1 more source