WO2008112735A3 - Lighting system with lighting dimmer output mapping - Google Patents

Lighting system with lighting dimmer output mapping Download PDF

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Publication number
WO2008112735A3
WO2008112735A3 PCT/US2008/056608 US2008056608W WO2008112735A3 WO 2008112735 A3 WO2008112735 A3 WO 2008112735A3 US 2008056608 W US2008056608 W US 2008056608W WO 2008112735 A3 WO2008112735 A3 WO 2008112735A3
Authority
WO
WIPO (PCT)
Prior art keywords
dimmer
output signal
lighting
dimmer output
dimming
Prior art date
Application number
PCT/US2008/056608
Other languages
French (fr)
Other versions
WO2008112735A2 (en
Inventor
John L Melanson
John J Paulos
Original Assignee
Cirrus Logic Inc
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 Cirrus Logic Inc filed Critical Cirrus Logic Inc
Priority to EP08731959A priority Critical patent/EP2130406A2/en
Publication of WO2008112735A2 publication Critical patent/WO2008112735A2/en
Publication of WO2008112735A3 publication Critical patent/WO2008112735A3/en

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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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • 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]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]

Abstract

A system and method map dimming levels of a lighting dimmer to light source control signals using a predetermined lighting output function. The dimmer generates a dimmer output signal value. At any particular period of time, the dimmer output signal value represents one of multiple dimming levels. In at least one embodiment, the lighting output function maps the dimmer output signal value to a dimming value different than the dimming level represented by the dimmer output signal value. The lighting output function converts a dimmer output signal values corresponding to measured light levels to perception based light levels. A light source driver operates a light source in accordance with the predetermined lighting output function. The system and method can include a filter to modify at least a set of the dimmer output signal values prior to mapping the dimmer output signal values to a new dimming level.
PCT/US2008/056608 2007-03-12 2008-03-12 Lighting system with lighting dimmer output mapping WO2008112735A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08731959A EP2130406A2 (en) 2007-03-12 2008-03-12 Lighting system with lighting dimmer output mapping

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US89429507P 2007-03-12 2007-03-12
US60/894,295 2007-03-12
US11/695,024 2007-04-01
US11/695,024 US7667408B2 (en) 2007-03-12 2007-04-01 Lighting system with lighting dimmer output mapping

Publications (2)

Publication Number Publication Date
WO2008112735A2 WO2008112735A2 (en) 2008-09-18
WO2008112735A3 true WO2008112735A3 (en) 2009-03-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/056608 WO2008112735A2 (en) 2007-03-12 2008-03-12 Lighting system with lighting dimmer output mapping

Country Status (3)

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US (4) US7667408B2 (en)
EP (1) EP2130406A2 (en)
WO (1) WO2008112735A2 (en)

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