Results 81 to 90 of about 126,760 (143)
The Circuit Design of the Receiving Part of the Portable Electroencephalogram System
مهندسی مخابرات جنوبIn recent years, many electroencephalogram (EEG) devices have become portable and wireless. Given the requirements for mobility, EEG instruments need to be smaller, lighter, and power-efficient with reduced noise and offset.
Marzieh Moradi, Mosoud Dousti
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Techniques of Reducing Switching Artifacts in Chopper Amplifiers
IEICE Transactions on Electronics, 2020 openaire +3 more sources
On the Maxumum Loop Gain of Chopper Amplifiers with a Make-before-break chopper
On the Maxumum Loop Gain of Chopper Amplifiers with a Make-before-break chopper論文(Article) 著者の一人（中津山）によって発表されたチョッパ増幅器の精密な解析法を用いて，中央短絡形チョッパを用いたチョッパ増幅器の負帰還量の限（(安定をそこなわずに帰還できる最大ループ利得）を計算し実測値と比較検討した。その結果両者は良く一致し，今までほっきりしなかった時定数が小さい場合の帰還量の限界が計算で求められ，この形のチョッパを用いた増幅器の安定性が明らかになった。これは，増幅器を設計する時の一つの基準になるであろう。 また，回路の時定数がチョッパ断続周期より大きい場合，誤差が少なく簡単に負帰還量の限界を求めることができる近似式が得られたので，これについても報告した。
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A Study of the Transfer Function of Chopper Amplifiers
A Study of the Transfer Function of Chopper AmplifiersThe chopper amplifier is frequently used in several types of d.c and a.c amplifiers as well as in d.c servomechanisms employing a.c control elements. In this paper the transfer function of the chopper amplifier is derived for a sinusoidal input signal.
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Design of Capacitive Sensing Chopper Amplifier Used in Artificial Nose Detection System [PDF]
Informacije MIDEMA. Tuševski, D. Strle
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Chopper Amplifier with Holding Circuit
The Journal of the Institute of Electrical Engineers of Japan, 1963 openaire +1 more source
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Measurement and Analysis of Current Noise in Chopper Amplifiers
IEEE Journal of Solid-State Circuits, 2013This paper presents a theoretical analysis and measurements of the current noise of several chopper instrumentation amplifiers, which demonstrate that the charge injection and clock feed-through associated with the MOSFETs of the input chopper give rise to significant input current and current noise.
Kofi A. A. Makinwa +2 more
exaly +3 more sources
Flicker Noise Analysis on Chopper Amplifier
2021 19th IEEE International New Circuits and Systems Conference (NEWCAS), 2021This paper aims to maximize the performance of the chopper amplifier, considering the design trade-off between noise and power consumption. To achieve the goal, we identify and model the various sources of flicker noise in the amplifier and switches using Verilog-AMS language. Then, we build a chopper amplifier circuit and investigate the influences of
Ting Zhou +5 more
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Noise Analysis and Simulation of Chopper Amplifier [PDF]
APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems, 2006 Conventional SPICE-like simulators are not adequate for the noise simulation of the chopper amplifier, which typically has no DC operating point. This paper discusses the noise properties of the chopper amplifier in both time domain and frequency domain and presents a method of simulating chopper amplifier noise behavior with the RF simulator?SpectreRF.
Tao Yin +3 more
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