Results 11 to 20 of about 34,828 (258)

A CMRR enhancement circuit by employing auxiliary buffer of capacitively coupled instrumentation amplifier for neural signal recording

open access: yesElectronics Letters, 2021
Here, a common‐mode rejection ratio (CMRR) enhancement circuit is proposed by employing an auxiliary buffer (AB) to the pseudo resistors of the capacitively coupled instrumentation amplifier (CCIA).
Longbin Zhu   +4 more
doaj   +1 more source

Double-Differential Amplifier for sEMG Measurement by Means of a Current-Mode Approach

open access: yesIEEE Access, 2022
This work proposes a Double Differential (DD) amplifier topology which exploits the advantages of the current-mode approach. DD amplifiers are useful as front-ends in standalone active electrodes for superficial electromyography (sEMG) wearable ...
Federico N. Guerrero   +3 more
doaj   +1 more source

ANALYSIS and SIMULATION of MOSFET DIFFERENTIAL AMPLIFIER [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2019
With the evolution of electronics today, a MOSFET transistor is useful in many applications such as computers due to several advantages. In this research, an NMOS transistor differential amplifier circuit with passive load that uses a modified Wilson ...
Muneer Aboud Hashem
doaj   +3 more sources

Description of technical characteristics for EEG equipment and their comparison for electroencephalographs available in Russia

open access: yesЭпилепсия и пароксизмальные состояния, 2023
The current study was aimed at providing a detailed description of the major technical characteristics for electroencephalographic (EEG) equipment and their impact on quality of the recorded signal.
А. А. Ivanov
doaj   +1 more source

A Broadband, High Common-Mode Rejection Ratio Instrumentation Amplifier [PDF]

open access: yes2021 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC), 2021
An operational amplifier based instrumentation amplifier (IA) with a common-mode rejection ratio (CMRR) independent of resistance tolerances is presented in this paper. The CMRR is determined by the operational amplifier characteristics. The IA shows a high CMRR up to 100 kHz.
openaire   +2 more sources

High-Bandwidth Isolated Voltage Measurements With Very High Common Mode Rejection Ratio for WBG Power Converters

open access: yesIEEE 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
doaj   +1 more source

Design of current sources for load common mode optimization

open access: yesJournal 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
doaj   +1 more source

A current mode instrumentation amplifier with high common-mode rejection ratio designed using a novel fully differential second-generation current conveyor

open access: yesSN 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

open access: yesApplied 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

Robust Smartphone Assisted Biosensing Based on Asymmetric Nanofluidic Grating Interferometry

open access: yesSensors, 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
doaj   +1 more source

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