Results 61 to 70 of about 56,904 (291)
Research and improvement of operational amplifier stability in capacitive sensor driver circuits
Технологія та конструювання в електронній апаратурі, 2008 It has been shown that the instability of operational amplifiers in capacitive driver circuits is caused by a significant phase shift in the negative feedback loop, which leads to oscillation processes.
Z. Yu. Hotra +2 more
doaj
Mokslas: Lietuvos Ateitis, 2013 The article offers the analysis of operational amplifier parameter changes, when circuits are scaled from 0.18 μm to 65 nm CMOS technology. Two two-stage operational amplifiers were designed for this purpose: first uses n-MOS input differential pair ...
Karolis Kiela, Marijan Jurgo
doaj +1 more source
Reduction of operational amplifiers finite gain effects in switched-capacitor biquads [PDF]
Serbian Journal of Electrical Engineering, 2005 A combined approach for reducing the errors in the pole frequency f p, the pole Q - factor Qp and the magnitude at the pole frequency Hp, of switched capacitor biquads is presented.
Radev Nikolay, Ivanov Kantcho
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Amplifier for measuring low-level signals in the presence of high common mode voltage [PDF]
, 1985 A high common mode rejection differential amplifier wherein two serially arranged Darlington amplifier stages are employed and any common mode voltage is divided between them by a resistance network.
Lukens, F. E.
core +1 more source
Mechanisms of parasite‐mediated disruption of brain vessels
FEBS Letters, EarlyView.Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira +3 more
wiley +1 more source
A simple circuit realization of the tent map
, 2009 We present a very simple electronic implementation of the tent map, one of the best-known discrete dynamical systems. This is achieved by using integrated circuits and passive elements only. The experimental behavior of the tent map electronic circuit is
Billings +13 more
core +1 more source
OTA-based non-linear function approximations [PDF]
, 1989 The suitability of operational transconductance amplifiers (OTAs) as the main active element to obtain basic building blocks for the design of programmable nonlinear continuous-time networks is examined.
Linares Barranco, Bernabé +3 more
core +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions
FEBS Letters, EarlyView.Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf +6 more
wiley +1 more source
A SWITCHED MULTIDIFFERENTIAL OPERATIONAL AMPLIFIER FOR A MULTICHANNEL MEASURING SYSTEM
Измерение, мониторинг, управление, контрольBackground. The purpose of this study is to design an amplifier that allows differential conversion of several input voltages with the possibility of multiplexing them, as well as having a lower zero offset voltage and a high commonmode attenuation ...
Sergey V. Fedorov
doaj +1 more source