Results 71 to 80 of about 147,442 (200)
Sinusoidal and Relaxation Wide Range Voltage Controlled Oscillators
Communications, 2015 This paper presents a sinusoidal Wien-bridge and square wave wide range voltage controlled oscillators. The square wave oscillator is based on relaxation (Schmitt trigger) topology.
Milan Stork
doaj +1 more source
Basins of Attraction and Escape in Pendulum‐Type Potentials with Quadratic Air Drag
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 8, August 2026.ABSTRACT Quadratic air drag is a common dissipative mechanism at moderate to high velocities, yet in nonlinear one‐degree‐of‐freedom systems, it typically blocks closed‐form solutions and energy‐based phase‐plane partitions. We study the autonomous class ẍ+α(x)|ẋ|ẋ+β(x)sgn(ẋ)+V′(x)=0,$$\begin{equation*} \ddot{x}+\alpha (x)\,|\dot{x}|\,\dot{x}+\beta
Attila Genda +2 more
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Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.Abstract We investigate the statistical nature of Global Navigation Satellite System (GNSS) signal fluctuations through the multiscale analysis of a strong scintillation event recorded at the Ionospheric Observatory of the Luigi Broglio Space Center in Malindi, Kenya.
L. Spogli +5 more
wiley +1 more source
Journal of Electrical and Computer Engineering, 2017 A new configuration of voltage-mode quadrature sinusoidal oscillator is proposed. The proposed oscillator employs two voltage differencing current conveyors (VDCCs), two resistors, and two grounded capacitors.
Den Satipar +2 more
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Fourier Expansion‐Based Approach to the Parameter Space of Classical Systems
Annalen der Physik, Volume 538, Issue 7, July 2026.ABSTRACT We propose a new approach to compute the classical metric tensor (CMT) and the Hannay curvature using Fourier series expansions in action‐angle variables. This approach circumvents the need for complex time‐domain integrals or the construction of generating functions, replacing them with algebraic combinations of Fourier coefficients. We prove
Marcos J. Hernández +3 more
wiley +1 more source
0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator. [PDF]
Sensors (Basel), 2022 Khateb F, Kumngern M, Kulej T, Biolek D.
europepmc +1 more source
Approach for third order quadrature oscillator realisation
IET Circuits, Devices & Systems, 2015 This paper presents a new approach for third order quadrature oscillator (QO) realisation. It uses a high pass filter and differentiator connected in a feedback loop. A differential voltage current conveyor transconductance amplifier (DVCCTA) is employed to verify the proposed approach. Two circuit topologies of QO have been proposed.
Neeta Pandey, Rajeshwari Pandey
openaire +2 more sources
A Cross-Coupled Relaxation Oscillator with Accurate Quadrature Outputs
, 2006 Because of IC technology evolution and the increase of market demand, the communication industry grows vigorously in recent years. The voltage-controlled oscillator plays a key role in the RF transceiver and provides oscillation signals needed for ...
Peng, Shih-Hao
core
Dynamics of an impact oscillator near a degenerate graze [PDF]
, 2010 We give a complete analysis of low-velocity dynamics close to grazingfor a generic one degree of freedom impact oscillator. This includes nondegenerate (quadratic) grazing and minimallydegenerate (cubic) grazing, corresponding respectively to ...
D R J Chillingworth +2 more
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DDCC-Based Quadrature Oscillator with Grounded Capacitors and Resistors
Active and Passive Electronic Components, 2009 A new voltage-mode quadrature oscillator using two differential difference current conveyors (DDCCs), two grounded capacitors, and three grounded resistors is presented. The proposed oscillator provides the following advantages: the oscillation condition
Montree Kumngern, Kobchai Dejhan
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