NO178780C - Method for controlling the brightness of a gas discharge lamp - Google Patents

Method for controlling the brightness of a gas discharge lamp

Info

Publication number
NO178780C
NO178780C NO905615A NO905615A NO178780C NO 178780 C NO178780 C NO 178780C NO 905615 A NO905615 A NO 905615A NO 905615 A NO905615 A NO 905615A NO 178780 C NO178780 C NO 178780C
Authority
NO
Norway
Prior art keywords
brightness
duty ratio
discharge lamp
characteristic curves
frequency
Prior art date
Application number
NO905615A
Other languages
Norwegian (no)
Other versions
NO905615L (en
NO905615D0 (en
NO178780B (en
Inventor
Bernhard Apsner
Siegfried Luger
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25888633&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO178780(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE3943350A external-priority patent/DE3943350A1/en
Priority claimed from DE4010112A external-priority patent/DE4010112A1/en
Application filed by Zumtobel Ag filed Critical Zumtobel Ag
Publication of NO905615D0 publication Critical patent/NO905615D0/en
Publication of NO905615L publication Critical patent/NO905615L/en
Publication of NO178780B publication Critical patent/NO178780B/en
Publication of NO178780C publication Critical patent/NO178780C/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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal 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
    • H05B41/282—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
    • H05B41/2825—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 by means of a bridge converter in the final stage
    • H05B41/2828—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 by means of a bridge converter in the final stage using control circuits for the switching elements
    • 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3925—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by frequency variation
    • 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Incineration Of Waste (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

A process for controlling the brightness (dimming) of a gas-discharge lamp (GE) which is located in a series resonant circuit (L1, C1) connected to a rectifier-inverter combination (10, 20), by varying the frequency (f) and the duty ratio (D, d) of the output alternating variable (uw) generated by the inverter and supplied to the gas-discharge lamp and to the series-resonant circuit (X; L1, C1, GE). The lamp (GE) is operated in a frequency range in which the dependency of the lamp power (Pab) on the frequency (f) of the output alternating variable (uw) can be represented by the duty ratio (D, d) as a parameter as a family of characteristic curves (K1, K2, K3, ...), each of which runs in the manner of a bell-shaped curve starting from a maximum value and reducing to form a point of inversion. The maximum value of the individual characteristic curves (K1, K2, K3, ...) of the family becomes smaller as the duty ratio (d1, d2, d3, ...) associated with these characteristic curves (K1, K2, K3, ...) as a parameter becomes smaller. The process is intended to be designed such that the brightness of a gas-discharge lamp can be varied in a stable manner without flicker. This is achieved in that the frequency (f) and the duty ratio (D, d) are in each case selected such that the operating point (B1, B2, B3, ...), with at least two characteristic curves selected or available for a specific lamp power (Pab), in each case coming to rest on that characteristic curve which has the lower gradient at this lamp power (brightness). <IMAGE>
NO905615A 1989-12-29 1990-12-28 Method for controlling the brightness of a gas discharge lamp NO178780C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3943350A DE3943350A1 (en) 1989-12-29 1989-12-29 Gas discharge lamp operating circuit
DE4010112A DE4010112A1 (en) 1989-12-29 1990-03-29 Dual-frequency resonant circuit for discharge lamp ignition - is fed from inverter at upper resonant frequency for starting and lower frequency for continuous operation

Publications (4)

Publication Number Publication Date
NO905615D0 NO905615D0 (en) 1990-12-28
NO905615L NO905615L (en) 1991-07-01
NO178780B NO178780B (en) 1996-02-19
NO178780C true NO178780C (en) 1996-05-29

Family

ID=25888633

Family Applications (2)

Application Number Title Priority Date Filing Date
NO905618A NO178910C (en) 1989-12-29 1990-12-28 Circuit arrangement and method of operation (and ignition) of a gas discharge lamp
NO905615A NO178780C (en) 1989-12-29 1990-12-28 Method for controlling the brightness of a gas discharge lamp

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO905618A NO178910C (en) 1989-12-29 1990-12-28 Circuit arrangement and method of operation (and ignition) of a gas discharge lamp

Country Status (5)

Country Link
EP (2) EP0435228B2 (en)
AT (2) ATE107119T1 (en)
DE (2) DE59006225D1 (en)
FI (2) FI98876C (en)
NO (2) NO178910C (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5138234A (en) * 1991-05-28 1992-08-11 Motorola, Inc. Circuit for driving a gas discharge lamp load
DE4210373A1 (en) * 1992-03-30 1993-10-07 Abb Patent Gmbh Electronic ballast
US5315214A (en) * 1992-06-10 1994-05-24 Metcal, Inc. Dimmable high power factor high-efficiency electronic ballast controller integrated circuit with automatic ambient over-temperature shutdown
DE4228641A1 (en) * 1992-08-28 1994-03-03 Tridonic Bauelemente Gmbh Dorn Ballast for a gas discharge lamp with an inverter
BE1007458A3 (en) * 1993-08-23 1995-07-04 Philips Electronics Nv Shifting.
DE69628739T2 (en) * 1995-12-26 2004-04-29 General Electric Co., Fairfield CONTROL AND MONITORING OF DIMMABLE CONTROL UNITS WITH A WIDE LIGHTING LIFT
DE19612170A1 (en) * 1996-03-27 1997-10-02 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Circuit arrangement for operating electric lamps and operating methods for electric lamps
FR2753333B1 (en) * 1996-09-06 1998-11-27 Sgs Thomson Microelectronics FLUORESCENT TUBE PRIMING AND FEEDING DEVICE
DE19702653A1 (en) * 1997-01-25 1998-07-30 Bosch Gmbh Robert Arrangement for adjusting the power of a gas discharge lamp
IL121819A (en) * 1997-09-22 2003-12-10 Elop Electrooptics Ind Ltd Circuit arrangement for igniting gas discharge flash tubes
US6452344B1 (en) 1998-02-13 2002-09-17 Lutron Electronics Co., Inc. Electronic dimming ballast
WO2000002423A2 (en) * 1998-07-01 2000-01-13 Everbrite, Inc. Power supply for gas discharge lamp
WO2001099477A1 (en) * 2000-06-20 2001-12-27 Koninklijke Philips Electronics N.V. Circuit device
DE10146030A1 (en) * 2001-09-18 2003-04-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Ballast for at least one electric light bulb
US20050168171A1 (en) 2004-01-29 2005-08-04 Poehlman Thomas M. Method for controlling striations in a lamp powered by an electronic ballast
WO2009069052A1 (en) * 2007-11-29 2009-06-04 Koninklijke Philips Electronics N.V. Method and device for driving a gas discharge lamp
DE102018207430B4 (en) 2018-05-14 2020-02-06 Laird Dabendorf Gmbh Antenna unit, transmission system and method for operating an antenna unit
DE102018211033A1 (en) * 2018-07-04 2020-01-09 Laird Dabendorf Gmbh Method for operating a circuit for generating an electromagnetic field and circuit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3279197D1 (en) * 1981-05-28 1988-12-08 Mitsubishi Electric Corp Low pressure mercury vapor discharge lamp unit
US4415839A (en) * 1981-11-23 1983-11-15 Lesea Ronald A Electronic ballast for gaseous discharge lamps
AT380373B (en) * 1983-05-17 1986-05-12 Zumtobel Ag VIBRATING INVERTER FOR THE FLUORESCENT LAMP
DE3319352A1 (en) * 1983-05-27 1984-11-29 Siemens AG, 1000 Berlin und 8000 München INVERTER FOR POWERING DISCHARGE LAMPS
DE3338464C2 (en) * 1983-10-22 1987-03-05 Plankenhorn Kapitalverwaltungs-KG, 7208 Spaichingen Circuit arrangement for operating at least one fluorescent lamp with adjustable brightness on a self-oscillating inverter
US4904905A (en) * 1988-08-05 1990-02-27 American Sterilizer Company Dual resonant frequency arc lamp power supply
GB8822781D0 (en) * 1988-09-28 1988-11-02 Marconi Electronic Devices Power circuit
US4914558A (en) * 1989-03-06 1990-04-03 Jon Flickinger Series resonant inverter and method of lamp starting
CA2015281C (en) * 1989-04-25 1995-08-29 Minoru Maehara Polarized electromagnetic relay

Also Published As

Publication number Publication date
ATE107833T1 (en) 1994-07-15
NO905618D0 (en) 1990-12-28
DE59006225D1 (en) 1994-07-28
NO178910B (en) 1996-03-18
NO905618L (en) 1991-07-01
FI906033A (en) 1991-06-30
FI906032A (en) 1991-06-30
NO905615L (en) 1991-07-01
EP0435228B1 (en) 1994-06-08
FI98876B (en) 1997-05-15
FI98876C (en) 1997-08-25
EP0435231A1 (en) 1991-07-03
EP0435228A2 (en) 1991-07-03
NO905615D0 (en) 1990-12-28
DE59006046D1 (en) 1994-07-14
FI906032A0 (en) 1990-12-05
FI906033A0 (en) 1990-12-05
NO178780B (en) 1996-02-19
ATE107119T1 (en) 1994-06-15
NO178910C (en) 1996-06-26
EP0435231B1 (en) 1994-06-22
EP0435228B2 (en) 1997-01-22
EP0435228A3 (en) 1992-07-08
FI100759B (en) 1998-02-13

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Free format text: LAPSED IN JUNE 2002