ATE326127T1 - Pwm-steuerung von arrays auf led-basis - Google Patents

Pwm-steuerung von arrays auf led-basis

Info

Publication number
ATE326127T1
ATE326127T1 AT02800685T AT02800685T ATE326127T1 AT E326127 T1 ATE326127 T1 AT E326127T1 AT 02800685 T AT02800685 T AT 02800685T AT 02800685 T AT02800685 T AT 02800685T AT E326127 T1 ATE326127 T1 AT E326127T1
Authority
AT
Austria
Prior art keywords
led
current
pwm pulse
light output
peak
Prior art date
Application number
AT02800685T
Other languages
English (en)
Inventor
Subramanian Muthu
Frank J P Schuurmans
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE326127T1 publication Critical patent/ATE326127T1/de

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]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • 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]
    • H05B45/20—Controlling the colour of the light
    • H05B45/28—Controlling the colour of the light using temperature feedback

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Dot-Matrix Printers And Others (AREA)
AT02800685T 2001-10-05 2002-09-30 Pwm-steuerung von arrays auf led-basis ATE326127T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/972,111 US6596977B2 (en) 2001-10-05 2001-10-05 Average light sensing for PWM control of RGB LED based white light luminaries

Publications (1)

Publication Number Publication Date
ATE326127T1 true ATE326127T1 (de) 2006-06-15

Family

ID=25519176

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02800685T ATE326127T1 (de) 2001-10-05 2002-09-30 Pwm-steuerung von arrays auf led-basis

Country Status (8)

Country Link
US (1) US6596977B2 (de)
EP (1) EP1438877B1 (de)
JP (1) JP4317751B2 (de)
CN (1) CN100403858C (de)
AT (1) ATE326127T1 (de)
DE (1) DE60211366T2 (de)
TW (1) TWI226208B (de)
WO (1) WO2003032689A1 (de)

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Also Published As

Publication number Publication date
WO2003032689A1 (en) 2003-04-17
CN1565147A (zh) 2005-01-12
JP4317751B2 (ja) 2009-08-19
DE60211366D1 (de) 2006-06-14
US20030066945A1 (en) 2003-04-10
DE60211366T2 (de) 2007-02-08
JP2005505940A (ja) 2005-02-24
CN100403858C (zh) 2008-07-16
EP1438877A1 (de) 2004-07-21
EP1438877B1 (de) 2006-05-10
TWI226208B (en) 2005-01-01
US6596977B2 (en) 2003-07-22

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