Topic
Common-mode interference
About: Common-mode interference is a research topic. Over the lifetime, 189 publications have been published within this topic receiving 671 citations.
Papers published on a yearly basis
Papers
TL;DR: An improvement on the classic DRL that uses a transconductance amplifier to drive the patient's body and provides an extended bandwidth for high-frequency EMI rejection (such as fluorescent lights interference).
Abstract: Biopotential measurements are very sensitive to electromagnetic interference (EMI). EMI gets into the acquisition system by many ways, both as differential and common mode signals, driven-right-leg circuits (DRL) are widely used to reduce common mode interference. This paper reports an improvement on the classic DRL. The proposed circuit uses a transconductance amplifier to drive the patient's body. This configuration has some interesting properties, which provide an extended bandwidth for high-frequency EMI rejection (such as fluorescent lights interference). The improvement is around 20 dB for frequencies of few kilohertz and the circuit is easy to compensate for stability. A comparative analysis against a typical DRL is presented, the results obtained have been experimentally tested.
75 citations
27 Jul 1999
TL;DR: In this paper, a proper understanding of common mode noise provides a systematic approach to solve common mode interference in SMPS, which is a major source of EMI in switching mode power supplies.
Abstract: Common mode noise current is a major source of EMI in switching mode power supplies. The generation mechanism is studied from a current balancing point of view in this paper. A proper understanding of common mode noise provides a systematic approach to solve common mode interference in SMPS. Impedance balance and noise source balance analysis of a boost converter are presented. Simulation and experiment results are shown to verify this concept.
53 citations
Patent•
16 May 1994
TL;DR: In this paper, a method and apparatus for passing a high frequency signal across an isolation barrier while rejecting low frequency common mode interference is provided. But this method is not suitable for wireless communication.
Abstract: A method and apparatus for passing a high frequency signal across an isolation barrier while rejecting low frequency common mode interference is provided. A high frequency signal is coupled across an isolation barrier. A circuit comprising an element having an impedance that is a function of frequency rejects low frequency common mode interference. The high frequency signal is provided as an output. The present invention is useful, for example, for isolating telephone apparatus, such as a telephone modem, from a telephone line.
38 citations
Patent•
26 Dec 2012
TL;DR: In this article, an anti-interference system, a capacitive touch sensor and a touch control terminal, is proposed to prevent common mode interference generated when the touch controller is connected with a charger and charged.
Abstract: The invention relates to the technical field of a touch sensor, and provides an anti-interference method The method includes the following steps: a touch control terminal is judged if the touch control terminal enters into a charging state, if the touch control terminal enters into the charging state, then follow-up procedures are carried out; interference is detected; when an interference according with a first preset condition is detected, then a touch screen driving frequency is selected to trip off interference frequency The invention further provides an anti-interference system, a capacitive touch sensor and a touch control terminal The capacitive touch sensor, the touch control terminal and the anti-interference method and the system thereof detect interference after the touch control terminal enters into the charging state, when the interference fitting the preset condition is detected, the touch screen driving frequency is selected to trip off the interference frequency, so that influences to touch control operation by common mode interference generated when the touch control terminal is connected with a charger and charged can be reduced or eliminated
33 citations
Patent•
12 Nov 1975TL;DR: In this paper, a telephone line battery feed circuit for supplying talking current to a subscriber subset and at the same time reducing common mode interference signals was proposed, where the inputs of a differential operational amplifier were coupled to a telephone and the outputs of the differential operational Amplifier are coupled to the battery.
Abstract: A telephone line battery feed circuit for supplying talking current to a subscriber subset and at the same time reducing common mode interference signals. The inputs of a differential operational amplifier are coupled to a telephone line and the outputs of the differential operational amplifier are coupled to a battery feed circuit. The battery feed circuit provides talking current to the subscriber subset and the differential operational amplifier presents a high impedance between the battery and the telephone line to differential voice signals while at the same time presenting a low impedance between the telephone line and the battery for common mode interference signals thereby reducing the latter.
28 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2020 | 13 |
| 2019 | 19 |
| 2018 | 18 |
| 2017 | 17 |
| 2016 | 21 |