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  Patent History
  • Application
    HK 20030106837 2003-09-23
  • Publication
    US 20120226759 2012-09-06
  • Granted
    HK 1054628 2005-12-23

granted patent: Apparatus For Noise Current Reduction In Power Converters.

TitleApparatus For Noise Current Reduction In Power Converters.
Granted PatentHK 1054628
Granted Date2005-12-23
Priority Date2001-08-24 US 09/939068
Inventors
Issue Date2005
Citation
Hong Kong Patent 1054628. Hong Kong, PRC: Intellectual Property Office of the Governmemnt of the Hong Kong Special Administration Region., 2005 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/10722/173798

 

DC FieldValueLanguage
dc.date.accessioned2012-11-02T06:19:24Z-
dc.date.available2012-11-02T06:19:24Z-
dc.date.issued2005-
dc.identifier.citationHong Kong Patent 1054628. Hong Kong, PRC: Intellectual Property Office of the Governmemnt of the Hong Kong Special Administration Region., 2005en_HK
dc.identifier.urihttp://hdl.handle.net/10722/173798-
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.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documentsen_US
dc.titleApparatus For Noise Current Reduction In Power Converters.en_HK
dc.typePatenten_US
dc.identifier.emailPong, MH=mhp@eee.hku.hk-
dc.identifier.authorityPong, MH:rp00163-
dc.contributor.inventorLiu, Joe Chui Pong-
dc.contributor.inventorPoon, Franki Ngai Kit-
dc.contributor.inventorPong, MH-
patents.identifier.applicationHK 20030106837en_HK
patents.identifier.grantedHK 1054628en_HK
patents.description.assigneeUniv Hong Kong [Hk]en_HK
patents.description.countryHong Kong (S.A.R.)en_HK
patents.date.publication2012-09-06en_HK
patents.date.granted2005-12-23en_HK
patents.identifier.hkutechidEEE-2001-00050-3en_HK
patents.date.application2003-09-23en_HK
patents.date.priority2001-08-24 US 09/939068en_HK
patents.description.ccHKen_HK
patents.identifier.publicationUS 20120226759en_HK
patents.relation.familyCN 1407702 (A) 2003-04-02en_HK
patents.relation.familyCN 1201469 (C) 2005-05-11en_HK
patents.relation.familyCN 1871761 (A) 2006-11-29en_HK
patents.relation.familyEP 1289108 (A2) 2003-03-05en_HK
patents.relation.familyEP 1658669 (A1) 2006-05-24en_HK
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
patents.relation.familyUS 6879500 (B2) 2005-04-12en_HK
patents.relation.familyUS 2003231515 (A1) 2003-12-18en_HK
patents.relation.familyWO 2005018077 (A1) 2005-02-24en_HK
patents.description.kindA1en_HK
patents.typePatent_granteden_HK

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