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DE59804841D1 - ELECTRONIC BALLAST - Google Patents

ELECTRONIC BALLAST

Info

Publication number
DE59804841D1
DE59804841D1 DE59804841T DE59804841T DE59804841D1 DE 59804841 D1 DE59804841 D1 DE 59804841D1 DE 59804841 T DE59804841 T DE 59804841T DE 59804841 T DE59804841 T DE 59804841T DE 59804841 D1 DE59804841 D1 DE 59804841D1
Authority
DE
Germany
Prior art keywords
status
lamp ballast
control circuit
operating
electronic lamp
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 - Lifetime
Application number
DE59804841T
Other languages
German (de)
Inventor
Norbert Primisser
Reinhard Boeckle
Stefan Koch
Stefan Rhyner
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.)
Tridonic GmbH and Co KG
Original Assignee
Tridonicatco GmbH and Co KG
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 Tridonicatco GmbH and Co KG filed Critical Tridonicatco GmbH and Co KG
Application granted granted Critical
Publication of DE59804841D1 publication Critical patent/DE59804841D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Discharge Heating (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Organic Insulating Materials (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Glass Compositions (AREA)
  • Furan Compounds (AREA)

Abstract

The invention relates to an electronic lamp ballast for operating gas-discharge lamps (G1, G2), where the electronic lamp ballast is controlled by means of a control circuit (IC2). The control circuit (IC2) controls the operation of the electronic lamp ballast in accordance with certain predetermined operating states (I - VIII) in which the control circuit (IC2) monitors certain status variables of the electronic lamp ballast or of a gas-discharge lamp (G1, G2) in accordance with the operating status. It changes from one operating status to a new operating status only if the status variables being monitored meet a condition assigned to the current operating status.
DE59804841T 1997-12-23 1998-11-19 ELECTRONIC BALLAST Expired - Lifetime DE59804841D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757600 1997-12-23
PCT/EP1998/007429 WO1999034650A1 (en) 1997-12-23 1998-11-19 Electronic lamp ballast

Publications (1)

Publication Number Publication Date
DE59804841D1 true DE59804841D1 (en) 2002-08-22

Family

ID=7853220

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59804841T Expired - Lifetime DE59804841D1 (en) 1997-12-23 1998-11-19 ELECTRONIC BALLAST

Country Status (6)

Country Link
EP (1) EP1040733B1 (en)
AT (1) ATE220849T1 (en)
AU (1) AU1755699A (en)
DE (1) DE59804841D1 (en)
WO (1) WO1999034650A1 (en)
ZA (1) ZA9811768B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1771046B1 (en) * 2000-09-15 2016-03-16 Tridonic GmbH & Co KG Electronic ballast with a digital control unit
ATE286347T1 (en) 2000-09-15 2005-01-15 Tridonicatco Gmbh & Co Kg ELECTRONIC BALLAST WITH DC-LINK CONTROL
DE10225880A1 (en) * 2002-06-11 2003-12-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Discharge lamp operating circuit with a current control circuit and a circuit for detecting proximity to a capacitive operation
DE10225881A1 (en) * 2002-06-11 2004-01-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Discharge lamp operating circuit with circuit for detecting proximity to a capacitive operation
US7728528B2 (en) 2004-11-29 2010-06-01 Century Concept Ltd Electronic ballast with preheating and dimming control
DE102006014062B4 (en) * 2006-03-27 2018-05-17 Tridonic Gmbh & Co Kg Operating device for bulbs

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477748A (en) * 1980-10-07 1984-10-16 Thomas Industries, Inc. Solid state ballast
GB8822195D0 (en) * 1988-09-21 1988-10-26 W J Parry Nottm Ltd Improvements in/related to electronic ballast circuits
US5173643A (en) * 1990-06-25 1992-12-22 Lutron Electronics Co., Inc. Circuit for dimming compact fluorescent lamps
GB2269279A (en) * 1992-08-01 1994-02-02 Coolite Ltd Fluorescent Tube Starting and Operating Circuit
US5424611A (en) * 1993-12-22 1995-06-13 At&T Corp. Method for pre-heating a gas-discharge lamp
EP0677981B1 (en) * 1994-04-15 2000-07-12 Knobel Ag Lichttechnische Komponenten Ballast for discharge lamps with lamp change detecting means
TW266383B (en) * 1994-07-19 1995-12-21 Siemens Ag Method of starting at least one fluorescent lamp by an electronic ballast and the electronic ballast used therefor
US5650694A (en) * 1995-03-31 1997-07-22 Philips Electronics North America Corporation Lamp controller with lamp status detection and safety circuitry
US5636111A (en) * 1996-03-26 1997-06-03 The Genlyte Group Incorporated Ballast shut-down circuit responsive to an unbalanced load condition in a single lamp ballast or in either lamp of a two-lamp ballast
US5696431A (en) * 1996-05-03 1997-12-09 Philips Electronics North America Corporation Inverter driving scheme for capacitive mode protection
US5739645A (en) * 1996-05-10 1998-04-14 Philips Electronics North America Corporation Electronic ballast with lamp flash protection circuit
US5729096A (en) * 1996-07-24 1998-03-17 Motorola Inc. Inverter protection method and protection circuit for fluorescent lamp preheat ballasts

Also Published As

Publication number Publication date
EP1040733A1 (en) 2000-10-04
AU1755699A (en) 1999-07-19
ATE220849T1 (en) 2002-08-15
WO1999034650A1 (en) 1999-07-08
ZA9811768B (en) 1999-06-29
EP1040733B1 (en) 2002-07-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: TRIDONIC GMBH & CO KG, DORNBIRN, AT