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Patent History
- ApplicationCN20048033150 2004-10-11
- PublicationCN 1883107 2006-12-20
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published patent: Dimmable ballast with resistive input and low electromagnetic interference
Title | Dimmable ballast with resistive input and low electromagnetic interference |
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Priority Date | 2003-11-10 US 10/518880P |
Inventors | |
Issue Date | 2006 |
Citation | China Published Patent Application CN 1883107. Beijing, PRC: State Intellectual Property Office (SIPO) of the P.R.C., 2006 How to Cite? |
Abstract | An 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 Identifier | http://hdl.handle.net/10722/99852 |
DC Field | Value | Language |
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dc.date.accessioned | 2010-09-25T18:46:49Z | - |
dc.date.available | 2010-09-25T18:46:49Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | China Published Patent Application CN 1883107. Beijing, PRC: State Intellectual Property Office (SIPO) of the P.R.C., 2006 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/99852 | - |
dc.description.abstract | An 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.language | eng | en_HK |
dc.title | Dimmable ballast with resistive input and low electromagnetic interference | en_HK |
dc.type | Patent | en_HK |
dc.identifier.email | Pong, MH: mhp@eee.hku.hk | en_HK |
dc.identifier.authority | Pong, MH=rp00163 | en_HK |
dc.description.nature | published_or_final_version | - |
dc.identifier.hkuros | 162742 | en_HK |
dc.contributor.inventor | POON FRANKI NGAI K. | en_HK |
dc.contributor.inventor | PONG MAN H. | - |
dc.contributor.inventor | LIU JOE C. P | - |
patents.identifier.application | CN20048033150 | en_HK |
patents.description.assignee | UNIV HONG KONG [HK] | en_HK |
patents.description.country | China, PRC | en_HK |
patents.date.publication | 2006-12-20 | en_HK |
patents.date.application | 2004-10-11 | en_HK |
patents.date.priority | 2003-11-10 US 10/518880P | en_HK |
patents.description.cc | CN | en_HK |
patents.identifier.publication | CN 1883107 | en_HK |
patents.relation.family | CN 100517934 (C) 2009-07-22 | en_HK |
patents.relation.family | EP 1683256 (A1) 2006-07-26 | en_HK |
patents.relation.family | US 2005110429 (A1) 2005-05-26 | en_HK |
patents.relation.family | US 7122972 (B2) 2006-10-17 | en_HK |
patents.relation.family | WO 2005046038 (A1) 2005-05-19 | en_HK |
patents.description.kind | A | en_HK |
patents.type | Patent_published | en_HK |