Results 21 to 30 of about 395,266 (293)
IEEE Open Journal of Power Electronics, 2022 Galvanically isolated voltage measurements are becoming increasingly important for the characterization of converter systems with fast switching Wide-Bandgap (WBG) semiconductors. A very high Common Mode Rejection Ratio (CMRR) $> 80$dB for frequencies
Pascal S. Niklaus +4 more
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Artifact-Aware Analogue/Mixed-Signal Front-Ends for Neural Recording Applications [PDF]
, 2019 This paper presents a brief review of techniques to overcome the problems associated with artifacts in analog frontends for neural recording applications.
Delgado Restituto, Manuel +2 more
core +1 more source
Design of current sources for load common mode optimization
Journal of Electrical Bioimpedance, 2018 Bioimpedance measurement systems often use the Howland current sources to excite the biological material under study. Usually, difference or instrumentation amplifiers are used to measure the resulting voltage drop on this material.
Sirtoli Vinicius G +2 more
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Bose-Einstein Condensate Comagnetometer [PDF]
, 2020 We describe a comagnetometer employing the $f=1$ and $f=2$ ground state hyperfine manifolds of a $^{87}$Rb spinor Bose-Einstein condensate as co-located magnetometers.
Gomez, Pau +5 more
core +2 more sources
SN Applied Sciences, 2022 Article highlights Highly accurate amplifier is designed to detect very weak signals of information (such as biomedical signals), and amplify them for further processing.
Soma Ahmadi +5 more
doaj +1 more source
Common-Mode Driven Synchronous Filtering of the Powerline Interference in ECG
Applied Sciences, 2022 Powerline interference (PLI) is a major disturbing factor in ground-free biopotential acquisition systems. PLI produces both common-mode and differential input voltages.
Tatyana Neycheva +2 more
doaj +1 more source
A 0.3 V, Rail-to-Rail, Ultralow-Power, Non-Tailed, Body-Driven, Sub-Threshold Amplifier
Applied Sciences, 2021 A novel, inverter-based, fully differential, body-driven, rail-to-rail, input stage topology is proposed in this paper. The input stage exploits a replica bias control loop to set the common mode current and a common mode feed-forward strategy to set its
Francesco Centurelli +3 more
doaj +1 more source
A High TCMRR, Inherently Charge Balanced Bidirectional Front-End for Multichannel Closed-Loop Neuromodulation [PDF]
, 2019 This paper describes a multichannel bidirectional front-end for implantable closed-loop neuromodulation. Stimulation artefacts are reduced by way of a 4-channel H-bridge current source sharing stimulator front-end that minimizes residual charge drops in ...
Delgado Restituto, Manuel +4 more
core +1 more source
Robust Smartphone Assisted Biosensing Based on Asymmetric Nanofluidic Grating Interferometry
Sensors, 2019 Point-of-care systems enable fast therapy decisions on site without the need of any healthcare infrastructure. In addition to the sensitive detection, stable measurement by inexperienced persons outside of laboratory facilities is indispensable.
Foelke Purr +5 more
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Manufacturing Tolerance Analysis of Deep-Ridged 90° Hybrid Based on InP 4 × 4 MMI
Photonics, 2020 An optical 90° hybrid based on an InGaAsP/InP deep-ridged 4 × 4 multimode interference (MMI) coupler is proposed and fabricated. Manufacturing tolerances on structural parameters of the 90° hybrid including multimode waveguide width and length, waveguide
Ziqing Lu +4 more
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