Performance of Common-Mode Chokes

Muetze, Annette; Heng, Bee See

doi:10.1109/mias.2009.935497

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…The CMV issues can also be solved from the spectrum point of view, rather than from that of magnitude. Passive filters and CM chokes are regarded as this type of techniques [11,[49][50][51][52][53][54][55][56][57][58][59].…”

Section: Introductionmentioning

confidence: 99%

Common-Mode Voltage Mitigation by Novel Integrated Chokes and Modulation Techniques in Power Converter Systems

Zhu¹

2023

Preprint

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Section: Introductionmentioning

confidence: 99%

Common-Mode Voltage Mitigation by Novel Integrated Chokes and Modulation Techniques in Power Converter Systems

Zhu¹

2023

Preprint

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“…Owing to asymmetries in the transmission path (from the transceiver to the connector), a dedicated amount of the differential-mode signal is converted into a common-mode signal which becomes apparent as emission of the data line [5][6][7]. A component which absorbs such common-mode signals is the common-mode choke (CMC) [8][9][10][11][12]. Beside the common-mode rejection the choke however converts additionally a part of the differential-mode signal into a common-mode signal because of asymmetries of the choke (in the following called conversion).…”

Section: Introductionmentioning

confidence: 99%

Reduction of differential‐mode to common‐mode conversion by means of analytic description in common‐mode chokes used for an automotive communication bus system

Spagele

Buntz

Leier

et al. 2014

IET Science, Measurement & Technology

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The following study describes the attempt to reduce differential-mode to common-mode conversion of data-line common-mode chokes (CMCs) which are used in unshielded-twisted-pair automotive communication bus systems. Conversion of a choke leads directly to emissions of the data line. Furthermore, the emission within the information signal's frequency range varies depending on the signal conversion. For high speed bus systems like for example 100 Mbit/s Ethernet, this leads to a significant emission in case of state-of-the-art CMCs used nowadays. The study is based on measurement results, simulations and an analytic description of different CMCs. In the analytic description all important parameters of a choke contributing to the mode conversion are shown. These parameters are the length of connection lines (connection from the windings on the coil to the package) and the length difference between the connection lines, as well as the characteristic impedance of connection lines and the characteristic impedance difference between the connection lines. The study indicates that the conversion factor and the emission level decrease by 10 dB when the length difference between the connection lines reduces from 4.8 to 0.2 mm. The overall result shows that the reduction of conversion factor is 25 dB when all parameters introducing in this study are optimised. The theory described in this study can point out the mutual influence of parameters and the weighting or prioritisation of parameters. This means that it is possible to design CMCs with small conversion and hereby reduce the emissions of an unshielded-twisted-pair automotive communication bus system.

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Hybrid space vector pulse width modulation synthesis to minimize the common-mode voltage

Janabi

Wang

2018

2018 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Performance of Common-Mode Chokes

Cited by 5 publications

References 27 publications

Common-Mode Voltage Mitigation by Novel Integrated Chokes and Modulation Techniques in Power Converter Systems

Common-Mode Voltage Mitigation by Novel Integrated Chokes and Modulation Techniques in Power Converter Systems

Reduction of differential‐mode to common‐mode conversion by means of analytic description in common‐mode chokes used for an automotive communication bus system

Hybrid space vector pulse width modulation synthesis to minimize the common-mode voltage

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