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Patent History
- ApplicationEP20040762098 2004-08-18
- GrantedEP 1658669 2006-05-24
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granted patent: APPARATUS FOR NOISE CURRENT REDUCTION IN POWER CONVERTERS
Title | APPARATUS FOR NOISE CURRENT REDUCTION IN POWER CONVERTERS |
---|---|
Granted Patent | EP 1658669 |
Granted Date | 2006-05-24 |
Priority Date | 2004-08-18 PCT/CN2004000962 2003-08-19 US 10/643859 |
Inventors | |
Issue Date | 2006 |
Citation | EP Patent 1658669. European Patent Office (EPO), Escapenet, 2006 How to Cite? |
Abstract | An 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 winding is wound with the secondary and primary windings to share the same magnetic core. |
Persistent Identifier | http://hdl.handle.net/10722/140301 |
DC Field | Value | Language |
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dc.date.accessioned | 2011-09-23T06:09:50Z | - |
dc.date.available | 2011-09-23T06:09:50Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | EP Patent 1658669. European Patent Office (EPO), Escapenet, 2006 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/140301 | - |
dc.description.abstract | An 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 winding is wound with the secondary and primary windings to share the same magnetic core. | en_HK |
dc.language | eng | en_US |
dc.title | APPARATUS FOR NOISE CURRENT REDUCTION IN POWER CONVERTERS | en_HK |
dc.type | Patent | en_US |
dc.identifier.email | Pong, MH: mhp@eee.hku.hk | en_US |
dc.identifier.authority | Pong, MH=rp00163 | en_US |
dc.description.nature | published_or_final_version | - |
dc.identifier.hkuros | 193575 | en_US |
dc.contributor.inventor | LIU, CHUIPONG JOE | en_HK |
dc.contributor.inventor | POON, NGAIKIT FRANKI | en_HK |
dc.contributor.inventor | PONG, MANHAY BRYAN | en_HK |
patents.identifier.application | EP20040762098 | en_HK |
patents.identifier.granted | EP 1658669 | en_HK |
patents.description.assignee | UNIV HONG KONG [CN] | en_HK |
patents.description.country | European Patent Office | en_HK |
patents.date.granted | 2006-05-24 | en_HK |
patents.date.application | 2004-08-18 | en_HK |
patents.date.priority | 2004-08-18 PCT/CN2004000962 | en_HK |
patents.date.priority | 2003-08-19 US 10/643859 | en_HK |
patents.description.cc | EP | en_HK |
patents.relation.family | CN 1407702 (A) 2003-04-02 | en_HK |
patents.relation.family | CN 1201469 (C) 2005-05-11 | en_HK |
patents.relation.family | CN 1871761 (A) 2006-11-29 | en_HK |
patents.relation.family | EP 1289108 (A2) 2003-03-05 | en_HK |
patents.relation.family | HK 1054628 (A1) 2005-12-23 | en_HK |
patents.relation.family | US 6490181 (B1) 2002-12-03 | en_HK |
patents.relation.family | US 2004032753 (A1) 2004-02-19 | en_HK |
patents.relation.family | US 6879500 (B2) 2005-04-12 | en_HK |
patents.relation.family | US 2003231515 (A1) 2003-12-18 | en_HK |
patents.relation.family | WO 2005018077 (A1) 2005-02-24 | en_HK |
patents.description.kind | A1 | en_HK |
patents.type | Patent_granted | en_HK |