Common-mode Noise Reduction Circuit Design for Biosignal Acquisition System—in Comparison with the DRL

2019 ◽  
Vol 139 (12) ◽  
pp. 657-662
Author(s):  
Minghui Chen ◽  
Jianqing Wang ◽  
Daisuke Anzai ◽  
Georg Fischer
Keyword(s):  
Noise Reduction ◽  
Circuit Design ◽  
Acquisition System ◽  
Common Mode

Effect of Bypass Capacitor in Common-mode Noise Reduction Technique for Automobile PCB

2010 ◽  
Vol 130 (5) ◽  
pp. 479-480
Author(s):  
Takanori Uno ◽  
Kouji Ichikawa ◽  
Yuichi Mabuchi ◽  
Atushi Nakamura
Keyword(s):  
Noise Reduction ◽  
Reduction Technique ◽  
Common Mode ◽  
Noise Reduction Technique

An Approach for Practical Use of Common-Mode Noise Reduction Technique for In-Vehicle Electronic Equipment

2010 ◽  
Vol E93-B (7) ◽  
pp. 1788-1796 ◽  
Author(s):  
Takanori UNO ◽  
Kouji ICHIKAWA ◽  
Yuichi MABUCHI ◽  
Atsushi NAKAMURA ◽  
Yuji OKAZAKI ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Reduction Technique ◽  
Electronic Equipment ◽  
Common Mode ◽  
Noise Reduction Technique

scholarly journals Common-Mode Noise Reduction in Noncontact Biopotential Acquisition Circuit Based on Imbalance Cancellation of Electrode-Body Impedance

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7140
Author(s):  
Minghui Chen ◽  
Jianqing Wang ◽  
Daisuke Anzai ◽  
Georg Fischer ◽  
Jens Kirchner
Keyword(s):  
Noise Reduction ◽  
Limiting Factor ◽  
Interference Immunity ◽  
Common Mode ◽  
Promising Alternative ◽  
Noise Rejection ◽  
Sensing Technology ◽  
Machine Interface ◽  
Body Impedance

Biopotential sensing technology with electrodes has a great future in medical treatment and human—machine interface, whereas comfort and longevity are two significant problems during usage. Noncontact electrode is a promising alternative to achieve more comfortable and long term biopotential signal recordings than contact electrode. However, it could pick up a significantly higher level of common-mode (CM) noise, which is hardly solved with passive filtering. The impedance imbalance at the electrode-body interface is a limiting factor of this problem, which reduces the common mode rejection ratio (CMRR) of the amplifier. In this work, we firstly present two novel CM noise reduction circuit designs. The circuit designs are based on electrode-body impedance imbalance cancellation. We perform circuit analysis and circuit simulations to explain the principles of the two circuits, both of which showed effectiveness in CM noise rejection. Secondly, we proposed a practical approach to detect and monitor the electrode-body impedance imbalance change. Compared with the conventional approach, it has certain advantages in interference immunity, and good linearity for capacitance. Lastly, we show experimental evaluation results on one of the designs we proposed. The results indicated the validity and feasibility of the approach.

A Study on the System Imbalance of the Single-Switch Converter for the Conductive Common Mode Noise Reduction

2007 ◽  
Vol E90-B (8) ◽  
pp. 2126-2137 ◽  
Author(s):  
N. BOONPIROM ◽  
Y. PREMPRANEERACH ◽  
K. PAITHOONWATANAKIJ ◽  
K. AUNCHALEEVARAPAN ◽  
S. NITTA
Keyword(s):  
Noise Reduction ◽  
Common Mode

A Balanced Feedforward Current-Sense Current-Compensation Active EMI Filter for Common-Mode Noise Reduction

2020 ◽  
Vol 62 (2) ◽  
pp. 386-397
Author(s):  
Dongil Shin ◽  
Sangyeong Jeong ◽  
Youngjin Baek ◽  
Chansoo Park ◽  
Gwigeun Park ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Common Mode ◽  
Current Compensation ◽  
Emi Filter
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