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  Patent History
  • Application
    CN20048033150 2004-10-11
  • Publication
    CN 1883107 2006-12-20

published patent: Dimmable ballast with resistive input and low electromagnetic interference

TitleDimmable ballast with resistive input and low electromagnetic interference
Priority Date2003-11-10 US 10/518880P
Inventors
Issue Date2006
Citation
China Published Patent Application CN 1883107. Beijing, PRC: State Intellectual Property Office (SIPO) of the P.R.C., 2006 How to Cite?
AbstractAn AC to AC power conversion apparatus with constant power feeding characteristics to fluorescent lamp or HID lamp is described. The constant power characteristic is achieved by discontinuous mode operation of capacitor coupled in series with the load. Packets of energy are pumped out to the load in each switching cycle, regardless of the resonant characteristics. The dependence of the input power on the square of the supply voltage make the input resistive and produces good power factor automatically. The lamp load is dimmable by external phase control dimmer like resistive incandescent lamps. Multiple lamp loads with different power rating can be integrated by adding more sets of said capacitors and associated components.
Persistent Identifierhttp://hdl.handle.net/10722/99852

 

DC FieldValueLanguage
dc.date.accessioned2010-09-25T18:46:49Z-
dc.date.available2010-09-25T18:46:49Z-
dc.date.issued2006-
dc.identifier.citationChina Published Patent Application CN 1883107. Beijing, PRC: State Intellectual Property Office (SIPO) of the P.R.C., 2006en_HK
dc.identifier.urihttp://hdl.handle.net/10722/99852-
dc.description.abstractAn AC to AC power conversion apparatus with constant power feeding characteristics to fluorescent lamp or HID lamp is described. The constant power characteristic is achieved by discontinuous mode operation of capacitor coupled in series with the load. Packets of energy are pumped out to the load in each switching cycle, regardless of the resonant characteristics. The dependence of the input power on the square of the supply voltage make the input resistive and produces good power factor automatically. The lamp load is dimmable by external phase control dimmer like resistive incandescent lamps. Multiple lamp loads with different power rating can be integrated by adding more sets of said capacitors and associated components.en_HK
dc.languageengen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documents-
dc.titleDimmable ballast with resistive input and low electromagnetic interferenceen_HK
dc.typePatenten_HK
dc.identifier.emailPong, MH: mhp@eee.hku.hken_HK
dc.identifier.authorityPong, MH=rp00163en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros162742en_HK
dc.contributor.inventorPOON FRANKI NGAI K.en_HK
dc.contributor.inventorPONG MAN H.-
dc.contributor.inventorLIU JOE C. P-
patents.identifier.applicationCN20048033150en_HK
patents.description.assigneeUNIV HONG KONG [HK]en_HK
patents.description.countryChina, PRCen_HK
patents.date.publication2006-12-20en_HK
patents.date.application2004-10-11en_HK
patents.date.priority2003-11-10 US 10/518880Pen_HK
patents.description.ccCNen_HK
patents.identifier.publicationCN 1883107en_HK
patents.relation.familyCN 100517934 (C) 2009-07-22en_HK
patents.relation.familyEP 1683256 (A1) 2006-07-26en_HK
patents.relation.familyUS 2005110429 (A1) 2005-05-26en_HK
patents.relation.familyUS 7122972 (B2) 2006-10-17en_HK
patents.relation.familyWO 2005046038 (A1) 2005-05-19en_HK
patents.description.kindAen_HK
patents.typePatent_publisheden_HK

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