granted patent: Apparatus For Reducing Common Mode Noise Current In Power Converters

TitleApparatus For Reducing Common Mode Noise Current In Power Converters
Granted PatentUS 6490181
Granted Date2002-12-03
Priority Date2001-08-24 US 09/939068
Inventors
Issue Date2002
Citation
US Patent 6490181. Washington, DC: US Patent and Trademark Office (USPTO), 2002 How to Cite?
AbstractAn Apparatus For Reducing Electromagnetic Interference Due To Common Mode Current In Power Converters Is Disclosed. Common Mode Current Flowing Through High Parasitic Capacitance On The Load Side Typically Contributes Significantly To The Electromagnetic Interference. In Order To Reduce The Electromagnetic Interference The Common Mode Current Is Reduced By Reducing The Voltage Driving A Current Through The High Parasitic Capacitance. A Counter-Acting Voltage Source Produces A Voltage Out Of Phase With The Voltage Driving The Common Mode Current. Such A Counter-Acting Voltage Is Obtained With The Aid Of A Winding Coupled To The Magnetic Component In The Power Converter Or By One Or More Active Components. The Counter-Acting Voltage Source Is Connected In Series With A Capacitance Element Connected Between The Input And Output Sides Of The Converter-Input Terminal And Output Terminal When Electrical Isolation Between The Input And The Output Is Desired.
Persistent Identifierhttp://hdl.handle.net/10722/173796
References

 

DC FieldValueLanguage
dc.date.accessioned2012-11-02T06:19:24Z-
dc.date.available2012-11-02T06:19:24Z-
dc.date.issued2002-
dc.identifier.citationUS Patent 6490181. Washington, DC: US Patent and Trademark Office (USPTO), 2002en_HK
dc.identifier.urihttp://hdl.handle.net/10722/173796-
dc.description.abstractAn Apparatus For Reducing Electromagnetic Interference Due To Common Mode Current In Power Converters Is Disclosed. Common Mode Current Flowing Through High Parasitic Capacitance On The Load Side Typically Contributes Significantly To The Electromagnetic Interference. In Order To Reduce The Electromagnetic Interference The Common Mode Current Is Reduced By Reducing The Voltage Driving A Current Through The High Parasitic Capacitance. A Counter-Acting Voltage Source Produces A Voltage Out Of Phase With The Voltage Driving The Common Mode Current. Such A Counter-Acting Voltage Is Obtained With The Aid Of A Winding Coupled To The Magnetic Component In The Power Converter Or By One Or More Active Components. The Counter-Acting Voltage Source Is Connected In Series With A Capacitance Element Connected Between The Input And Output Sides Of The Converter-Input Terminal And Output Terminal When Electrical Isolation Between The Input And The Output Is Desired.en_HK
dc.relation.isreferencedbyUS 2010314872 (A1) 2010-12-16en_HK
dc.relation.isreferencedbyUS 8138620 (B2) 2012-03-20en_HK
dc.relation.isreferencedbyUS 2008019156 (A1) 2008-01-24en_HK
dc.relation.isreferencedbyUS 7545656 (B2) 2009-06-09en_HK
dc.relation.isreferencedbyEP 1658669 (A1) 2006-05-24en_HK
dc.relation.isreferencedbyEP 1658669 (A4) 2009-03-18en_HK
dc.relation.isreferencedbyUS 2004240236 (A1) 2004-12-02en_HK
dc.relation.isreferencedbyUS 6850423 (B2) 2005-02-01en_HK
dc.relation.isreferencedbyWO 03098788 (A1) 2003-11-27en_HK
dc.relation.isreferencedbyWO 03058791 (A2) 2003-07-17en_HK
dc.relation.isreferencedbyWO 03058791 (A3) 2003-11-06en_HK
dc.relation.isreferencedbyUS 2002118552 (A1) 2002-08-29en_HK
dc.relation.isreferencedbyUS 6678173 (B2) 2004-01-13en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documentsen_US
dc.titleApparatus For Reducing Common Mode Noise Current In Power Convertersen_HK
dc.typePatenten_US
dc.identifier.emailPong, MH=mhp@eee.hku.hk-
dc.identifier.authorityPong, MH:rp00163-
dc.description.naturepublished_or_final_versionen_US
dc.contributor.inventorLiu, Joe Chui Pong-
dc.contributor.inventorPoon, Franki Ngai Kit-
dc.contributor.inventorPong, MH-
patents.identifier.applicationUS 09/939068en_HK
patents.identifier.grantedUS 6490181en_HK
patents.description.assigneeUniv Hong Kong [Cn]en_HK
patents.description.countryUnited States of Americaen_HK
patents.date.granted2002-12-03en_HK
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patents.date.application2001-08-24en_HK
patents.date.priority2001-08-24 US 09/939068en_HK
patents.description.ccUSen_HK
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patents.relation.familyHK 1054628 (A1) 2005-12-23en_HK
patents.relation.familyUS 6490181 (B1) 2002-12-03en_HK
patents.relation.familyUS 2004032753 (A1) 2004-02-19en_HK
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patents.relation.familyWO 2005018077 (A1) 2005-02-24en_HK
patents.description.kindB1en_HK
patents.typePatent_granteden_HK

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