Results 21 to 30 of about 1,664 (293)
A Chopper-Stabilized Amplifier With a Relaxed Fill-In Technique and 22.6-pA Input Current
Microelectronics
Thije Rooijers +2 more
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A Chopper Stabilized, Current Feedback, Neural Recording Amplifier
Advanced neural prosthetics requires high density neural recording and stimulation electrodes interfacing with the tissue. For an implantable device, area, power consumption, and noise performance are the key design metrics. Due to the low-frequency nature of the recorded signals, chopping technique is inevitable to satisfy the noise requirement while ...
Aria Samiei, Hossein Hashemi
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This paper presents a low noise multipath operational amplifier with chopper-stabilized and gain-boosted low-frequency path (LFP) amplifier. The LFP amplifier adopts the gain-boosting using dynamic element matching (DEM) and buffered adaptive clock ...
Mookyoung Yoo +8 more
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Biopotential signals are created as a result of the electrochemical activity of the many cells that comprise the nervous system, and they represent both normal and pathological organ function.
Ankit ADESARA, Amisha NAIK
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aAnalysis of Noise and Residual offset in Chopper Stabilized Amplifiers [PDF]
In this paper, historical background and fundamental concept of chopper stabilized amplifiers are first introduced. Then effects of noise and residual offset are analyzed. Several techniques to reduce the residual offset are proposed.
ganesh E N (12315038)
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A low-offset low-noise sigma-delta modulator with pseudorandom chopper-stabilization technique [PDF]
This paper presents a low-offset low-noise sigma-delta modulator with pseudorandom chopper-stabilization technique. The comparison of the noise-cancellation ability with the correlated double sampling and chopper-stabilization techniques is demonstrated;
Chen, Hsin-Liang; Chen, Po-Sheng; Chiang, Jen-Shiun +1 more
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Supercapacitors Based Power Supply Design for Toroidal Field Coil of Upgrade Damavand Tokamak [PDF]
In this study, the current discharge and the power supply system of toroidal field (TF) coils of Damavand tokamak have been designed and simulated to increase the magnetic field time and consequently the plasma duration.
H. Rasouli +4 more
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Stability study and dynamical analysis of the multicellular chopper [PDF]
The dynamical properties of a two-cells chopper connected to a particular nonlinear load are described in this paper. Some interesting and complex attractors are obtained. We analyse the system by means of Lyapunov exponents, fractal dimension, Poincaré mapping, first return, bifurcation diagram and phase portraits, respectively. Our model is described
Djondiné, Philippe +2 more
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Design of sigma-delta modulator 10-16 bits for resolver digital converter
In this paper, a sigma-delta modulator for 10-16 bit resolver digital converter is designed. The modulator is a second-order structure. On this basis, a chopper modulator circuit is added to eliminate the flicker noise.
Gu Jun, Zhang Guohua, Zhu Xiaoyu
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Low-power amplifier chopper stabilization for a digital-to-analog converter [PDF]
Includes bibliographical references (p. 59).Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.Modern portable media devices demand low-power and low-noise performance from the internal ...
Keith Jordy
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