Results 31 to 40 of about 3,714 (283)

An implantable epileptic signal detector with wireless charging and wireless communication

Dianzi Jishu Yingyong, 2018
An epileptic signal detector with wireless charging and wireless communication is proposed in this work, which can be used to build a closed-loop neurostimulator.
Qian Nixin, Zhu Yunfan, Shi Huan, Zhong Binbin, Wu Jinli, Wang Jie, Li Xiaolong   +6 more
doaj   +1 more source

Low-Noise Chopper-Stabilized Zero-Drift Amplifier With SAR-Assisted Automatic Offset Calibration Loop

IEEE Access, 2023
This paper presents a low-noise chopper-stabilized zero-drift amplifier with successive approximation register (SAR)-assisted automatic offset calibration loop (AOCL).
Gibae Nam, Gyuri Choi, Mookyoung Yoo, Sanggyun Kang, Byeongkwan Jin, Hyeoktae Son, Kyounghwan Kim, Jihyang Wi, Seungmin Ahn, Hyoungho Ko   +9 more
doaj   +1 more source

Analysis of Sensitivity and Power Consumption of Chopping Techniques for Integrated Capacitive Sensor Interface Circuits

Journal of Low Power Electronics and Applications, 2017
In this paper, parameters related to the sensitivity of the interface circuits for capacitive sensors are determined. Both the input referred noise and capacitance of the input transistors are important for capacitive sensitivity.
Parisa Vejdani, Karim Allidina, Frederic Nabki   +2 more
doaj   +1 more source

Analysis and Design of High-Energy-Efficiency Amplifiers for Delta-Sigma Modulators

Active and Passive Electronic Components, 2023
This study presents a dynamic amplifier with high energy efficiency and high gain suitable for a delta-sigma modulator based on the floating-inverter amplifier (FIA), in-depth analysis of the existing FIA and its improved structure, and simulation ...
Jinze Lai, Yuxuan Lin, Gumeng Zhao, Lijie Huang, Cong Wei, Rongshan Wei, Wei Hu   +6 more
doaj   +1 more source

A Low-Power, Low-Noise, Resistive-Bridge Microsensor Readout Circuit with Chopper-Stabilized Recycling Folded Cascode Instrumentation Amplifier

Applied Sciences, 2021
In this paper, a low-power and low-noise readout circuit for resistive-bridge microsensors is presented. The chopper-stabilized, recycling folded cascode current-feedback instrumentation amplifier (IA) is proposed to achieve the low-power, low-noise, and
Gyuri Choi, Hyunwoo Heo, Donggeun You, Hyungseup Kim, Kyeongsik Nam, Mookyoung Yoo, Sangmin Lee, Hyoungho Ko   +7 more
doaj   +1 more source

A 55 V, Six-Channel Chopper and Auto-Zeroing Amplifier with 6.2 nV/$\sqrt{\mathbf{Hz}}$ Noise and −128 dB Total Harmonic Distortion

Eng
In this paper, a high-voltage chopper and ping-pong auto-zeroing operational amplifier was designed for industrial and automotive applications. Based on chopper stabilization, the proposed circuit introduces a novel chopper switch control signal that ...
Guolong Li, Guoqing Weng, Zhifeng Chen, Chenying Zhang, Shifan Wu, Chengying Chen   +5 more
doaj   +1 more source

A Low Noise Multipath Chopper-Stabilized Operational Amplifier Using Dynamic Element Matching Gain-Boosting and Low Input Current Adaptive Clock-Boosting Chopper Switch

IEEE Access
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, Gibae Nam, Minhyeok Son, Manhyuck Choi, Inju Yu, Dahyun Jin, Euiyoung Lee, Hajun Bin, Hyoungho Ko   +8 more
doaj   +1 more source

A 50nV/√Hz 2‐channel time multiplexed bio‐chopper amplifier with current‐attenuated feedback resistor

Electronics Letters, 2022
This paper presents 2‐channel time‐multiplexed chopper instrument amplifier for better gain accuracy and mismatch. Mostly, the current‐attenuated feedback resistor with a duty‐cycled resistor is adopted for boosting the RC time constant.
Beomjin Yuk, Byeongseol Kim, Joonsung Bae   +2 more
doaj   +1 more source

A fully differential capacitively-coupled high CMRR low-power chopper amplifier for EEG dry electrodes [PDF]

, 2020
The use of dry electrodes is increasing rapidly. Since their impedance is high, there is a high impedance node at the connecting node between the electrode and amplifier.
Ytterdal, Trond, Molinas Cabrera, Maria Marta, Habibzadeh Tonekabony Shad, Erwin   +2 more
core   +2 more sources

Consideration of Bandwidth of Amplifier Block in Chopper Stabilization Amplifier [PDF]

, 2016
This thesis presents a consideration of bandwidth of amplifier block in chopper stabilization amplifier. In the theory of the amplifier using chopper stabilization technique, Fourier series expansion often is used.
タンノ, コウイチ, 90334713, 外山, 貴子, Tanno, Koichi, 淡野, 公一, 50260740, 田村, 宏樹, 7150, 7152, 27296, クドウ, リョウタ, Toyama, Takako, Kudo, Ryota, 27300, トヤマ, タカコ, Tamura, Hiroki, 12078, 工藤, 涼太, タムラ, ヒロキ   +18 more
core