EP1102520A3 - Dispositif de commande de diodes électroluminescentes - Google Patents

Dispositif de commande de diodes électroluminescentes Download PDF

Info

Publication number: EP1102520A3
Authority: EP; European Patent Office
Prior art keywords: control device; series connection; current limiting; limiting resistor; led
Prior art date: 1999-11-16
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP00123897A

Other languages

German (de)

English (en)

Other versions

EP1102520A2 (fr

Inventor

Christian Dr.-Ing. Heite

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.)

ABB Patent GmbH

Original Assignee

ABB Patent GmbH

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.)

1999-11-16

Filing date

2000-11-03

Publication date

2004-12-01

2000-11-03 Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH

2001-05-23 Publication of EP1102520A2 publication Critical patent/EP1102520A2/fr

2004-12-01 Publication of EP1102520A3 publication Critical patent/EP1102520A3/fr

Status Withdrawn legal-status Critical Current

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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
- 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
- H05B45/345—Current stabilisation; Maintaining constant current

Landscapes

Led Devices (AREA)
Control Of Indicators Other Than Cathode Ray Tubes (AREA)

EP00123897A 1999-11-16 2000-11-03 Dispositif de commande de diodes électroluminescentes Withdrawn EP1102520A3 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19954911		1999-11-16
DE19954911A DE19954911A1 (de)	1999-11-16	1999-11-16	Anordnung zur Ansteuerung von LEDs

Publications (2)

Publication Number	Publication Date
EP1102520A2 EP1102520A2 (fr)	2001-05-23
EP1102520A3 true EP1102520A3 (fr)	2004-12-01

Family

ID=7929103

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00123897A Withdrawn EP1102520A3 (fr)	1999-11-16	2000-11-03	Dispositif de commande de diodes électroluminescentes

Country Status (2)

Country	Link
EP (1)	EP1102520A3 (fr)
DE (1)	DE19954911A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE20105599U1 (de)	2001-03-30	2001-08-02	DREEFS GmbH Schaltgeräte und Systeme, 96364 Marktrodach	Schaltungsanordnung zur Ansteuerung von Leuchtelementen
DE10159765C2 (de) *	2001-12-05	2003-11-06	Audi Ag	Anordnung zur Ansteuerung einer Anzahl von lichtemittierenden Dioden und Verfahren zum Betreiben einer derartigen Anordnung
EP1576859A2 (fr) *	2002-09-16	2005-09-21	First Flower & Fruit Company A/S	Electroluminescentes pour production lumineuse
DE102011076672B3 (de)	2011-05-30	2012-12-06	Osram Ag	Signalisierungsvorrichtung und Sensorvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4099171A (en) *	1977-01-28	1978-07-04	National Semiconductor Corporation	Brightness control in an LED display device
US4532472A (en) *	1980-07-16	1985-07-30	Sharp Kabushiki Kaisha	LED level meter
US4644341A (en) *	1984-07-05	1987-02-17	Tri-Tronics Company, Inc.	Contrast indicating arrangement in photoelectric sensing systems
DE3927744A1 (de) *	1989-08-23	1991-02-28	Rump Elektronik Tech	Analoganzeige mit hilfe einer led-kette

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2506582B2 (de) *	1975-02-17	1978-01-19	Hartmann & Braun Ag, 6000 Frankfurt	Schaltungsanordnung zur verlustarmen speisung mehrerer steuerbarer verbraucher
DE3136395A1 (de) *	1981-09-14	1983-04-14	Brown, Boveri & Cie Ag, 6800 Mannheim	Schaltungsanordnung zur anzeige von binaersignalen mit leuchtdioden
DE3319779A1 (de) *	1983-05-27	1984-11-29	Siemens AG, 1000 Berlin und 8000 München	Elektrisches geraet mit einer schaltungsanordnung zur anzeige mehrerer betriebszustaende durch leuchtdioden
DD234084A1 (de) *	1985-01-18	1986-03-19	Applikationszentrum Elektronik	Schaltungsanordnung zur helligkeitssteuerung von gemultiplexten led-anzeigen
DE4022166A1 (de) *	1990-07-12	1992-01-16	Siemens Ag	Integrierbare, verlustarme vielfach-led-ansteuerung
EP0967590A1 (fr) *	1998-06-25	1999-12-29	Hewlett-Packard Company	Dispositif d'affichage optique utilisant des diodes électroluminescentes et sa méthode de commande

1999
- 1999-11-16 DE DE19954911A patent/DE19954911A1/de not_active Withdrawn
2000
- 2000-11-03 EP EP00123897A patent/EP1102520A3/fr not_active Withdrawn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4099171A (en) *	1977-01-28	1978-07-04	National Semiconductor Corporation	Brightness control in an LED display device
US4532472A (en) *	1980-07-16	1985-07-30	Sharp Kabushiki Kaisha	LED level meter
US4644341A (en) *	1984-07-05	1987-02-17	Tri-Tronics Company, Inc.	Contrast indicating arrangement in photoelectric sensing systems
DE3927744A1 (de) *	1989-08-23	1991-02-28	Rump Elektronik Tech	Analoganzeige mit hilfe einer led-kette

Also Published As

Publication number	Publication date
EP1102520A2 (fr)	2001-05-23
DE19954911A1 (de)	2001-05-17

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Legal Events

Date	Code	Title	Description
2001-04-06	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2001-05-23	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
2001-05-23	AX	Request for extension of the european patent	Free format text: AL;LT;LV;MK;RO;SI
2001-10-17	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: ABB PATENT GMBH
2004-10-15	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
2004-12-01	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
2004-12-01	AX	Request for extension of the european patent	Extension state: AL LT LV MK RO SI
2005-05-25	17P	Request for examination filed	Effective date: 20050324
2005-08-24	AKX	Designation fees paid	Designated state(s): AT CH DE FR LI
2007-11-02	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2007-12-05	18D	Application deemed to be withdrawn	Effective date: 20070601