GB2464211B - Improvements relating to lighting systems - Google Patents

Improvements relating to lighting systems

Info

Publication number
GB2464211B
GB2464211B GB0917586.0A GB0917586A GB2464211B GB 2464211 B GB2464211 B GB 2464211B GB 0917586 A GB0917586 A GB 0917586A GB 2464211 B GB2464211 B GB 2464211B
Authority
GB
United Kingdom
Prior art keywords
lighting systems
improvements relating
relating
lighting
systems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB0917586.0A
Other versions
GB0917586D0 (en
GB2464211A (en
Inventor
David Thomas Summerland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Holdip Ltd
Original Assignee
Holdip Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Holdip Ltd filed Critical Holdip Ltd
Publication of GB0917586D0 publication Critical patent/GB0917586D0/en
Publication of GB2464211A publication Critical patent/GB2464211A/en
Application granted granted Critical
Publication of GB2464211B publication Critical patent/GB2464211B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
GB0917586.0A 2008-10-08 2009-10-08 Improvements relating to lighting systems Expired - Fee Related GB2464211B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0818412.9A GB0818412D0 (en) 2008-10-08 2008-10-08 Improvements relating to lighting systems

Publications (3)

Publication Number Publication Date
GB0917586D0 GB0917586D0 (en) 2009-11-25
GB2464211A GB2464211A (en) 2010-04-14
GB2464211B true GB2464211B (en) 2013-04-10

Family

ID=40042463

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0818412.9A Ceased GB0818412D0 (en) 2008-10-08 2008-10-08 Improvements relating to lighting systems
GB0917586.0A Expired - Fee Related GB2464211B (en) 2008-10-08 2009-10-08 Improvements relating to lighting systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0818412.9A Ceased GB0818412D0 (en) 2008-10-08 2008-10-08 Improvements relating to lighting systems

Country Status (1)

Country Link
GB (2) GB0818412D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108646661A (en) * 2018-04-28 2018-10-12 淮北矿业（集团）有限责任公司 A kind of PLC electric-controlled intelligents switching device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567280A2 (en) * 1992-04-24 1993-10-27 Hughes Aircraft Company Quasi-resonant diode drive current source
WO2006038157A2 (en) * 2004-10-01 2006-04-13 Koninklijke Philips Electronics N.V. Power converter for led large area light source lamp
EP2079278A2 (en) * 2008-01-14 2009-07-15 Yang Tai-Her Uni-directional light emitting diode drive circuit in bi-directional power parallel resonance
EP2079280A2 (en) * 2008-01-14 2009-07-15 Tai-Her Yang Bi-directional light emitting diode drive circuit in pulsed power parallel resonance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567280A2 (en) * 1992-04-24 1993-10-27 Hughes Aircraft Company Quasi-resonant diode drive current source
WO2006038157A2 (en) * 2004-10-01 2006-04-13 Koninklijke Philips Electronics N.V. Power converter for led large area light source lamp
EP2079278A2 (en) * 2008-01-14 2009-07-15 Yang Tai-Her Uni-directional light emitting diode drive circuit in bi-directional power parallel resonance
EP2079280A2 (en) * 2008-01-14 2009-07-15 Tai-Her Yang Bi-directional light emitting diode drive circuit in pulsed power parallel resonance

Also Published As

Publication number Publication date
GB0917586D0 (en) 2009-11-25
GB2464211A (en) 2010-04-14
GB0818412D0 (en) 2008-11-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20131008