Modeling and Characterization of Incomplete Shielding Effect of GND on Common-Mode EMI of a Power Converter
Common-mode (CM) electromagnetic interference (EMI) noise of a power converter is mostly due to the displacement current of the parasitic CM capacitance distributed between earth and the corresponding dynamic circuit node with very large dv/dt. In the layout of the printed circuit board (PCB) of a p...
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| Veröffentlicht in: | IEEE transactions on electromagnetic compatibility 2011-08, Vol.53 (3), p.676-683 |
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| creator | Chen, Henglin Chen, Chen Ren, Yuancheng |
| description | Common-mode (CM) electromagnetic interference (EMI) noise of a power converter is mostly due to the displacement current of the parasitic CM capacitance distributed between earth and the corresponding dynamic circuit node with very large dv/dt. In the layout of the printed circuit board (PCB) of a power converter, the power ground (GND) is an important factor to mitigate CM EMI, because it could act as a shield between earth and the dynamic circuit node. Taking a buck converter as an example, this paper proposes a method to evaluate the incomplete shielding effectiveness of GND on CM EMI emission. It first builds up a CM EMI model for the converter. The CM model is then used to analyze the shielding mechanism of GND on CM EMI. Numerical simulations are performed for comparison of shielding effectiveness of GND with different layouts. The simulation results show that the shielding effectiveness of GND increases conditionally with the mutual capacitance between the GND and the dynamic circuit node. The evaluation method and the simulation results are validated through experimental results. |
| doi_str_mv | 10.1109/TEMC.2011.2155660 |
| format | Article |
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In the layout of the printed circuit board (PCB) of a power converter, the power ground (GND) is an important factor to mitigate CM EMI, because it could act as a shield between earth and the dynamic circuit node. Taking a buck converter as an example, this paper proposes a method to evaluate the incomplete shielding effectiveness of GND on CM EMI emission. It first builds up a CM EMI model for the converter. The CM model is then used to analyze the shielding mechanism of GND on CM EMI. Numerical simulations are performed for comparison of shielding effectiveness of GND with different layouts. The simulation results show that the shielding effectiveness of GND increases conditionally with the mutual capacitance between the GND and the dynamic circuit node. The evaluation method and the simulation results are validated through experimental results.</description><identifier>ISSN: 0018-9375</identifier><identifier>EISSN: 1558-187X</identifier><identifier>DOI: 10.1109/TEMC.2011.2155660</identifier><identifier>CODEN: IEMCAE</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Capacitance ; Circuit boards ; Circuit properties ; Common-mode electromagnetic interference ; Computer simulation ; Conductors ; Delta modulation ; Dynamics ; Electric, optical and optoelectronic circuits ; Electrical engineering. Electrical power engineering ; Electromagnetic compatibility ; Electromagnetic interference ; Electronic circuits ; Electronic equipment and fabrication. Passive components, printed wiring boards, connectics ; Electronics ; Exact sciences and technology ; Impedance ; Information, signal and communications theory ; Layout ; Mathematical models ; Noise ; parasitic capacitance ; power converter ; Power converters ; Power electronics, power supplies ; power ground ; Printed circuit boards ; Shielding ; Signal convertors ; Studies ; Telecommunications and information theory</subject><ispartof>IEEE transactions on electromagnetic compatibility, 2011-08, Vol.53 (3), p.676-683</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Aug 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c395t-95ee1d59a7d224b431d76c88a6ada926b172bf86bfb3b8b2d91027e9eb4c5c473</citedby><cites>FETCH-LOGICAL-c395t-95ee1d59a7d224b431d76c88a6ada926b172bf86bfb3b8b2d91027e9eb4c5c473</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5873140$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5873140$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24513206$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Henglin</creatorcontrib><creatorcontrib>Chen, Chen</creatorcontrib><creatorcontrib>Ren, Yuancheng</creatorcontrib><title>Modeling and Characterization of Incomplete Shielding Effect of GND on Common-Mode EMI of a Power Converter</title><title>IEEE transactions on electromagnetic compatibility</title><addtitle>TEMC</addtitle><description>Common-mode (CM) electromagnetic interference (EMI) noise of a power converter is mostly due to the displacement current of the parasitic CM capacitance distributed between earth and the corresponding dynamic circuit node with very large dv/dt. In the layout of the printed circuit board (PCB) of a power converter, the power ground (GND) is an important factor to mitigate CM EMI, because it could act as a shield between earth and the dynamic circuit node. Taking a buck converter as an example, this paper proposes a method to evaluate the incomplete shielding effectiveness of GND on CM EMI emission. It first builds up a CM EMI model for the converter. The CM model is then used to analyze the shielding mechanism of GND on CM EMI. Numerical simulations are performed for comparison of shielding effectiveness of GND with different layouts. The simulation results show that the shielding effectiveness of GND increases conditionally with the mutual capacitance between the GND and the dynamic circuit node. The evaluation method and the simulation results are validated through experimental results.</description><subject>Applied sciences</subject><subject>Capacitance</subject><subject>Circuit boards</subject><subject>Circuit properties</subject><subject>Common-mode electromagnetic interference</subject><subject>Computer simulation</subject><subject>Conductors</subject><subject>Delta modulation</subject><subject>Dynamics</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electromagnetic compatibility</subject><subject>Electromagnetic interference</subject><subject>Electronic circuits</subject><subject>Electronic equipment and fabrication. Passive components, printed wiring boards, connectics</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Impedance</subject><subject>Information, signal and communications theory</subject><subject>Layout</subject><subject>Mathematical models</subject><subject>Noise</subject><subject>parasitic capacitance</subject><subject>power converter</subject><subject>Power converters</subject><subject>Power electronics, power supplies</subject><subject>power ground</subject><subject>Printed circuit boards</subject><subject>Shielding</subject><subject>Signal convertors</subject><subject>Studies</subject><subject>Telecommunications and information theory</subject><issn>0018-9375</issn><issn>1558-187X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE9v1DAQxS0EEkvhAyAuERLqKYvHfxL7iMK2XalLK1EkbpbjTGhKYi92FgSfvo521QOnmdH7vafRI-Qt0DUA1R_vNrtmzSjAmoGUVUWfkVVeVAmq_v6crCgFVWpey5fkVUoP-RSS8RX5uQsdjoP_UVjfFc29jdbNGId_dh6CL0JfbL0L037EGYuv9wOO3QJv-h7dvMiXXz4XGWzCNAVfLmnFZrddFFvchj8Ys-R_Y8yhr8mL3o4J35zmGfl2sblrrsrrm8tt8-m6dFzLudQSETqpbd0xJlrBoasrp5StbGc1q1qoWdurqu1b3qqWdRooq1FjK5x0ouZn5PyYu4_h1wHTbKYhORxH6zEcktGgNacSaCbf_0c-hEP0-TmjlFCcaS0yBEfIxZBSxN7s4zDZ-NcANUv5ZinfLOWbU_nZ8-EUbJOzYx-td0N6MjIhgTNaZe7dkRsQ8UmWquYgKH8EjxqMOw</recordid><startdate>20110801</startdate><enddate>20110801</enddate><creator>Chen, Henglin</creator><creator>Chen, Chen</creator><creator>Ren, Yuancheng</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20110801</creationdate><title>Modeling and Characterization of Incomplete Shielding Effect of GND on Common-Mode EMI of a Power Converter</title><author>Chen, Henglin ; Chen, Chen ; Ren, Yuancheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c395t-95ee1d59a7d224b431d76c88a6ada926b172bf86bfb3b8b2d91027e9eb4c5c473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Applied sciences</topic><topic>Capacitance</topic><topic>Circuit boards</topic><topic>Circuit properties</topic><topic>Common-mode electromagnetic interference</topic><topic>Computer simulation</topic><topic>Conductors</topic><topic>Delta modulation</topic><topic>Dynamics</topic><topic>Electric, optical and optoelectronic circuits</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Electromagnetic compatibility</topic><topic>Electromagnetic interference</topic><topic>Electronic circuits</topic><topic>Electronic equipment and fabrication. Passive components, printed wiring boards, connectics</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Impedance</topic><topic>Information, signal and communications theory</topic><topic>Layout</topic><topic>Mathematical models</topic><topic>Noise</topic><topic>parasitic capacitance</topic><topic>power converter</topic><topic>Power converters</topic><topic>Power electronics, power supplies</topic><topic>power ground</topic><topic>Printed circuit boards</topic><topic>Shielding</topic><topic>Signal convertors</topic><topic>Studies</topic><topic>Telecommunications and information theory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Henglin</creatorcontrib><creatorcontrib>Chen, Chen</creatorcontrib><creatorcontrib>Ren, Yuancheng</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998–Present</collection><collection>IEEE Xplore (Online service)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE transactions on electromagnetic compatibility</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Chen, Henglin</au><au>Chen, Chen</au><au>Ren, Yuancheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modeling and Characterization of Incomplete Shielding Effect of GND on Common-Mode EMI of a Power Converter</atitle><jtitle>IEEE transactions on electromagnetic compatibility</jtitle><stitle>TEMC</stitle><date>2011-08-01</date><risdate>2011</risdate><volume>53</volume><issue>3</issue><spage>676</spage><epage>683</epage><pages>676-683</pages><issn>0018-9375</issn><eissn>1558-187X</eissn><coden>IEMCAE</coden><abstract>Common-mode (CM) electromagnetic interference (EMI) noise of a power converter is mostly due to the displacement current of the parasitic CM capacitance distributed between earth and the corresponding dynamic circuit node with very large dv/dt. In the layout of the printed circuit board (PCB) of a power converter, the power ground (GND) is an important factor to mitigate CM EMI, because it could act as a shield between earth and the dynamic circuit node. Taking a buck converter as an example, this paper proposes a method to evaluate the incomplete shielding effectiveness of GND on CM EMI emission. It first builds up a CM EMI model for the converter. The CM model is then used to analyze the shielding mechanism of GND on CM EMI. Numerical simulations are performed for comparison of shielding effectiveness of GND with different layouts. The simulation results show that the shielding effectiveness of GND increases conditionally with the mutual capacitance between the GND and the dynamic circuit node. The evaluation method and the simulation results are validated through experimental results.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TEMC.2011.2155660</doi><tpages>8</tpages></addata></record> |
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| subjects | Applied sciences Capacitance Circuit boards Circuit properties Common-mode electromagnetic interference Computer simulation Conductors Delta modulation Dynamics Electric, optical and optoelectronic circuits Electrical engineering. Electrical power engineering Electromagnetic compatibility Electromagnetic interference Electronic circuits Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Exact sciences and technology Impedance Information, signal and communications theory Layout Mathematical models Noise parasitic capacitance power converter Power converters Power electronics, power supplies power ground Printed circuit boards Shielding Signal convertors Studies Telecommunications and information theory |
| title | Modeling and Characterization of Incomplete Shielding Effect of GND on Common-Mode EMI of a Power Converter |
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