NO177210C - Electronic drive for gas discharge lamps - Google Patents

Electronic drive for gas discharge lamps

Info

Publication number
NO177210C
NO177210C NO903421A NO903421A NO177210C NO 177210 C NO177210 C NO 177210C NO 903421 A NO903421 A NO 903421A NO 903421 A NO903421 A NO 903421A NO 177210 C NO177210 C NO 177210C
Authority
NO
Norway
Prior art keywords
signal
switch
circuit part
voltage
gas discharge
Prior art date
Application number
NO903421A
Other languages
Norwegian (no)
Other versions
NO177210B (en
NO903421D0 (en
NO903421L (en
Inventor
Wolfgang Pabst
Original Assignee
Zumtobel Ag
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 Zumtobel Ag filed Critical Zumtobel Ag
Publication of NO903421D0 publication Critical patent/NO903421D0/en
Publication of NO903421L publication Critical patent/NO903421L/en
Publication of NO177210B publication Critical patent/NO177210B/en
Publication of NO177210C publication Critical patent/NO177210C/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
    • 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
    • H05B41/2985—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
    • 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
    • H05B41/2983—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal power supply conditions

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Pipeline Systems (AREA)
  • Air Bags (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Connecting Device With Holders (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Inverter Devices (AREA)

Abstract

An electronic ballast (1) for gas discharge lamps (2), having an input circuit part (10, 11) for producing an intermediate-circuit DC voltage (Uz) from a supply voltage (L1,N), having an oscillator circuit part (4,8,S1,S2), supplied from the intermediate circuit DC voltage (Uz) for generating an alternating signal (uw) which can be supplied to the gas discharge lamp (2), having a bistable switch-off latching circuit part (3) which supplies a switch-off signal (us) in its first and second stable state to the oscillator circuit part (4,8,S1,S2), and hence releases the oscillator circuit part (4,8,S1,S2) or switches it off, a first signal (u1), derived from the alternating signal (uw), driving the switch-off latching circuit part (3) from its first into its second stable state in the event of a predetermined value being exceeded, and generating the switch-off signal (us), is to be designed such that its operating reliability is further improved. This is achieved in that a further signal (u2), derived from the intermediate circuit DC voltage (Uz), produces the switch-off signal (us) when the intermediate circuit DC voltage (Uz) exceeds a predetermined maximum value. <IMAGE>
NO903421A 1989-08-04 1990-08-03 Electronic drive for gas discharge lamps NO177210C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3925899A DE3925899A1 (en) 1989-08-04 1989-08-04 ELECTRONIC CONTROLLER FOR GAS DISCHARGE LAMPS

Publications (4)

Publication Number Publication Date
NO903421D0 NO903421D0 (en) 1990-08-03
NO903421L NO903421L (en) 1991-02-05
NO177210B NO177210B (en) 1995-04-24
NO177210C true NO177210C (en) 1995-08-02

Family

ID=6386555

Family Applications (1)

Application Number Title Priority Date Filing Date
NO903421A NO177210C (en) 1989-08-04 1990-08-03 Electronic drive for gas discharge lamps

Country Status (7)

Country Link
EP (1) EP0411618B1 (en)
AT (1) ATE102429T1 (en)
DE (2) DE3925899A1 (en)
DK (1) DK0411618T3 (en)
ES (1) ES2050897T3 (en)
FI (1) FI96657C (en)
NO (1) NO177210C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120649A1 (en) * 1991-06-22 1992-12-24 Vossloh Schwabe Gmbh OVERVOLTAGE PROTECTED BALLAST
DE19619580A1 (en) * 1996-05-15 1997-11-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Safety shutdown with asymmetrical lamp power
DE10163034B4 (en) * 2001-12-20 2014-08-28 Tridonic Gmbh & Co Kg Electronic ballast with overvoltage monitoring
DE102004002027B4 (en) 2004-01-14 2020-03-26 Tridonic Gmbh & Co Kg Central PFC with DC output circuit control
DE102005028419A1 (en) 2005-06-20 2006-12-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electronic ballast for e.g. coldstarting discharge lamp, has varistor, shutdown device, diode, resistors and integration capacitor connected in parallel for limiting voltage across intermediate circuit capacitor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117192B (en) * 1982-02-26 1986-01-02 Transtar Limited Lamp control circuit
US4538095A (en) * 1983-06-03 1985-08-27 Nilssen Ole K Series-resonant electronic ballast circuit
AT390156B (en) * 1985-05-14 1990-03-26 Zumtobel Ag PROTECTIVE CIRCUIT FOR A INVERTER CIRCUIT
FR2625642A1 (en) * 1987-12-31 1989-07-07 Courier De Mere Henri Electronic ballast with high power factor
US5068570A (en) * 1989-01-26 1991-11-26 Koito Manufacturing Co., Ltd. Lamp lighting circuit with an overload protection capability

Also Published As

Publication number Publication date
DK0411618T3 (en) 1994-03-28
EP0411618A2 (en) 1991-02-06
ATE102429T1 (en) 1994-03-15
EP0411618A3 (en) 1992-07-22
NO177210B (en) 1995-04-24
NO903421D0 (en) 1990-08-03
ES2050897T3 (en) 1994-06-01
DE3925899A1 (en) 1991-02-07
FI96657B (en) 1996-04-15
EP0411618B1 (en) 1994-03-02
DE59004747D1 (en) 1994-04-07
FI96657C (en) 1996-07-25
NO903421L (en) 1991-02-05
FI903809A0 (en) 1990-07-31

Similar Documents

Publication Publication Date Title
CA2062126A1 (en) Starting and Operating Circuit for Arc Discharge Lamp
MX9305064A (en) LAMP REACTOR CIRCUIT.
JPS57174893A (en) Power source for driving low voltage discharge lamp
WO2002056646A3 (en) Ballast for a discharge lamp
MX9504684A (en) Dimming circuit for powering gas discharge lamps.
DE69225013T2 (en) Switching arrangement
KR910002090A (en) Switch mode power supply
IL123029A0 (en) A method and device for operating electronic ballasts for high intensity discharge (HID) lamps
NO177210C (en) Electronic drive for gas discharge lamps
CA2253468A1 (en) Universal high intensity discharge (hid) electronic starter
ATE176371T1 (en) ELECTRONIC BALLAST
ATE207688T1 (en) CIRCUIT FOR STARTING A HIGH-PRESSURE GAS DISCHARGE LAMP WITH AN ADDITIONAL POWER
ATE162357T1 (en) IMPROVED BALLAST WITH LOW POWER LOSS
BR9404212A (en) Reactor circuit
KR900002171Y1 (en) Automatic lighting control arrangements
DK0610642T3 (en) Inverters for supplying discharge lamps with heated electrodes with resonant circuits.
DE69117417D1 (en) Switching arrangement
HU9401605D0 (en) Electronic supply for igniting and operating a high-pressure discharge lamp
KR20010062584A (en) Piezoelectric transformer driving circuit
KR870010761A (en) Fluorescent electronic ballast
KR970078759A (en) Vending machine electronic fluorescent ballast
KR910014005A (en) Fluorescent lamp driving circuit
KR940023319A (en) Electronic ballast protection circuit for discharge lamp
KR19980030459A (en) Dimmers for fluorescent lamps and fluorescent light safety devices
KR890006107A (en) Ballasts for electronic low frequency circuit fluorescent lamps

Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees

Free format text: LAPSED IN FEBRUARY 2002