ATE346480T1 - OPERATING DEVICE FOR LEDS - Google Patents

OPERATING DEVICE FOR LEDS

Info

Publication number
ATE346480T1
ATE346480T1 AT03000960T AT03000960T ATE346480T1 AT E346480 T1 ATE346480 T1 AT E346480T1 AT 03000960 T AT03000960 T AT 03000960T AT 03000960 T AT03000960 T AT 03000960T AT E346480 T1 ATE346480 T1 AT E346480T1
Authority
AT
Austria
Prior art keywords
switch
operating current
leds
operating device
dimensioned
Prior art date
Application number
AT03000960T
Other languages
German (de)
Inventor
Ugo Francescutti
Giovanni Scilla
Original Assignee
Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
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 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh filed Critical Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
Application granted granted Critical
Publication of ATE346480T1 publication Critical patent/ATE346480T1/en

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
    • H05B45/3725—Switched mode power supply [SMPS]

Landscapes

  • Led Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Electronic Switches (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Led Device Packages (AREA)

Abstract

The arrangement has an electronic switch for the LED operating current and a pull-down device in parallel with the switch whose resistance is dimensioned so that the ratio of the operating current with the switch closed to the operating current with the switch open is described by a reduction factor of at least 10.
AT03000960T 2002-01-17 2003-01-16 OPERATING DEVICE FOR LEDS ATE346480T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10201779A DE10201779A1 (en) 2002-01-17 2002-01-17 Control gear for light emitting diodes

Publications (1)

Publication Number Publication Date
ATE346480T1 true ATE346480T1 (en) 2006-12-15

Family

ID=7712466

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03000960T ATE346480T1 (en) 2002-01-17 2003-01-16 OPERATING DEVICE FOR LEDS

Country Status (4)

Country Link
EP (1) EP1330143B1 (en)
CN (1) CN100474995C (en)
AT (1) ATE346480T1 (en)
DE (2) DE10201779A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102545650B (en) * 2010-12-31 2016-12-28 澳大利亚克林普斯有限公司 Power-switching circuit
CN115541971B (en) * 2022-11-23 2023-04-14 南京宏泰半导体科技股份有限公司 System and method for detecting communication TTL level sent by semiconductor tester

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS633477A (en) * 1986-06-23 1988-01-08 Sharp Corp Dimmer circuit for light emitting diode
GB9726254D0 (en) * 1997-12-11 1998-02-11 Moscickiego Led Lamp
US6266000B1 (en) * 1999-04-30 2001-07-24 Agilent Technologies, Inc. Programmable LED driver pad
US6590343B2 (en) * 2000-06-06 2003-07-08 911Ep, Inc. LED compensation circuit

Also Published As

Publication number Publication date
DE50305720D1 (en) 2007-01-04
DE10201779A1 (en) 2003-07-31
CN1441631A (en) 2003-09-10
EP1330143B1 (en) 2006-11-22
EP1330143A2 (en) 2003-07-23
EP1330143A3 (en) 2004-02-11
CN100474995C (en) 2009-04-01

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