Analysis of the Impact of the Monitoring Equipment on the Common-Mode to Differential-Mode Conversion in Bulk Current Injection Tests

2021 ◽  
Author(s):  
Pablo J. Gardella ◽  
Eduardo Mariani
Keyword(s):  
Mode Conversion ◽  
Current Injection ◽  
Differential Mode ◽  
Monitoring Equipment ◽  
Common Mode ◽  
The Common ◽  
The Impact

Tunable balanced to balanced filtering power divider with high common-mode suppression

Frequenz ◽  
2020 ◽  
Vol 74 (7-8) ◽  
pp. 263-270
Author(s):  
Cao Zeng ◽  
Xue Han Hu ◽  
Feng Wei ◽  
Xiao Wei Shi
Keyword(s):  
Return Loss ◽  
High Selectivity ◽  
Power Divider ◽  
Center Frequency ◽  
Differential Mode ◽  
Common Mode ◽  
Mode Suppression ◽  
The Common ◽  
Equal Power ◽  
Good Agreement

AbstractIn this paper, a tunable balanced-to-balanced in-phase filtering power divider (FPD) is designed, which can realize a two-way equal power division with high selectivity and isolation. A differential-mode (DM) passband with a steep filtering performance is realized by applying microstrip stub-loaded resonators (SLRs). Meanwhile, six varactors are loaded to the SLRs to achieve the center frequency (CF) and bandwidth adjustment, respectively. U-type microstrip lines integrated with stepped impedance slotline resonators are utilized as the differential feedlines, which suppress the common-mode (CM) intrinsically, making the DM responses independent of the CM ones. A tuning center frequency from 3.2 to 3.75 GHz and a fractional bandwidth (12.1–17.6%) with more than 10 dB return loss and less than 2.3 dB insertion loss can be achieved by changing the voltage across the varactors. A good agreement between the simulated and measured results is observed. To the best of authors' knowledge, the proposed balanced-to-balanced tunable FPD is first ever reported.

Fully Differential Class-AB OTA with Improved CMRR

2017 ◽  
Vol 26 (11) ◽  
pp. 1750169 ◽  
Author(s):  
Francesco Centurelli ◽  
Pietro Monsurrò ◽  
Gaetano Parisi ◽  
Pasquale Tommasino ◽  
Alessandro Trifiletti
Keyword(s):  
Cmos Technology ◽  
Current Mirror ◽  
Differential Mode ◽  
Common Mode ◽  
Common Mode Rejection Ratio ◽  
Class Ab ◽  
Fully Differential ◽  
Rejection Ratio ◽  
Mode Behavior ◽  
The Common

This paper presents a fully differential class-AB current mirror OTA that improves the common-mode behavior of a topology that presents very good differential-mode performance but poor common-mode rejection ratio (CMRR). The proposed solution requires a low-current auxiliary circuit driven by the input signal, to compensate the effect of the common-mode input component. Simulations in 40-nm CMOS technology show a net reduction of common-mode gain of more than 90[Formula: see text]dB without affecting the differential-mode behavior; a sample-and-hold amplifier exploiting the proposed amplifier has also been simulated.

scholarly journals Differential-Mode to Common-Mode Conversion Detector Based on Rat-Race Hybrid Couplers: Analysis and Application to Differential Sensors and Comparators

2020 ◽  
Vol 68 (4) ◽  
pp. 1312-1325 ◽  
Author(s):  
Jonathan Munoz-Enano ◽  
Paris Velez ◽  
Marta Gil Barba ◽  
Javier Mata-Contreras ◽  
Ferran Martin
Keyword(s):  
Mode Conversion ◽  
Differential Mode ◽  
Common Mode

The AMB System’s EMI Analysis of Backup Helium Circulator for HTR-10GT

2013 ◽  
Author(s):  
Yan Zhou ◽  
JingJing Zhao ◽  
Ni Mo ◽  
Zhe Sun ◽  
SuYuan Yu
Keyword(s):  
Power Amplifier ◽  
Theoretical Basis ◽  
Current Source ◽  
Voltage Source ◽  
Differential Mode ◽  
Common Mode ◽  
Turn On ◽  
Conducted Emission ◽  
The Common ◽  
Amb System

With the application in HTR-10GT, the reliability and stability of the AMB system should be studied deeply. Especially EMI analysis on the switch power amplifier is needed to be done, since which one is the main interference source for AMB during the switch turn-on and turn-off. Based on it, a simplified and improved modeling method is listed by dividing the nonlinear transition into several stages, and the models of the voltage source and current source are built in the form of the piece-wise linear way. The conducted emission on the differential mode noise and the common mode is shown by simulation. The result could provide the theoretical basis on the designing the grounding, filter and isolation for the AMB system.

Common mode interference reduction in seismic recording

Geophysics ◽  
1982 ◽  
Vol 47 (12) ◽  
pp. 1672-1680 ◽  
Author(s):  
Miles A. Smither ◽  
Arnold Pater
Keyword(s):  
Poor Quality ◽  
Seismic Signals ◽  
Recording Instrument ◽  
Differential Mode ◽  
Notch Filters ◽  
Common Mode ◽  
Interference Reduction ◽  
Seismic Recording ◽  
The Common ◽  
Mode Interference

In spite of the prevalence of high common mode rejection ratio (CMRR) input amplifiers, notch filters are routinely used in seismic recording operations to reduce common mode induced interference. An electrical model of the recording environment which predicts the degradation in system CMRR caused by cable imperfections such as imbalance and leakage is described in this paper. System CMRRs as low as 20 dB can be caused by poor quality cables. A new method of controlling common mode interference has been developed which has none of the disadvantages of notch filters. The method minimizes the correlation between the common mode and differential mode signals at the recording instrument. This process has no effect on the desired seismic signals, has minimal effect on the system noise, and typically results in a system CMRR in excess of 100 dB.

scholarly journals Separation of the common-mode- and differential-mode-conducted EMI noise

1996 ◽  
Vol 11 (3) ◽  
pp. 480-488 ◽  
Author(s):  
Ting Guo ◽  
D.Y. Chen ◽  
F.C. Lee
Keyword(s):  
Differential Mode ◽  
Common Mode ◽  
The Common ◽  
Conducted Emi

scholarly journals Common mode behavior in grid connected DC and AC decoupled PV Inverter topologies

2016 ◽  
Vol 65 (3) ◽  
pp. 481-493 ◽  
Author(s):  
D. John Sundar ◽  
M. Senthil Kumaran
Keyword(s):  
Leakage Current ◽  
High Efficiency ◽  
Economic Feasibility ◽  
Photovoltaic Systems ◽  
Common Mode ◽  
Pv Inverter ◽  
Mode Behavior ◽  
The Common ◽  
Utility Grid ◽  
The Impact

Abstract The transformer-less grid connected inverters are gaining more popularity due to their high efficiency, very low ground leakage current and economic feasibility especially in photovoltaic systems. The major issue which surfaces these systems is that of common mode leakage current which arises due to the absence of an electrical transformer connected between the inverter and the utility grid. Several topologies have evolved to reduce the impact of common mode leakage current and a majority of them have succeeded in eliminating the impacts and have well kept them within the limits of grid standards. This paper compares and analyses the impact of the common mode leakage current for four popular inverter configurations through simulation of the topologies such as H5, H6, HERIC and FBZVR inverters.

Sign in / Sign up

Export Citation Format

Share Document