ATE131682T1 - POWER SUPPLY DEVICE FOR THE HEATING DEVICE OF A HEATED DISPLAY, IN PARTICULAR A FLUORESCENCE DISPLAY - Google Patents

POWER SUPPLY DEVICE FOR THE HEATING DEVICE OF A HEATED DISPLAY, IN PARTICULAR A FLUORESCENCE DISPLAY

Info

Publication number
ATE131682T1
ATE131682T1 AT91108630T AT91108630T ATE131682T1 AT E131682 T1 ATE131682 T1 AT E131682T1 AT 91108630 T AT91108630 T AT 91108630T AT 91108630 T AT91108630 T AT 91108630T AT E131682 T1 ATE131682 T1 AT E131682T1
Authority
AT
Austria
Prior art keywords
display
voltage
power supply
heating device
heated
Prior art date
Application number
AT91108630T
Other languages
German (de)
Inventor
Klaus Anders
Original Assignee
Eaton 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.)
Filing date
Publication date
Application filed by Eaton Gmbh filed Critical Eaton Gmbh
Application granted granted Critical
Publication of ATE131682T1 publication Critical patent/ATE131682T1/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
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
    • H05B41/2325—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps provided with pre-heating electrodes
    • 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

Landscapes

  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

A power supply for a heating device (20) of a heated display (10), especially of a fluorescent display, is proposed. A DC voltage source supplies the display voltage for the display and a heating current source for the heating device is constructed as a clock device (21, 19), pulsing the display voltage. In this way, the inherently low heating voltage can be derived from the higher display voltage, it being possible to save expensive, large-volume ballast elements and reduce the power loss. <IMAGE>
AT91108630T 1990-06-29 1991-05-28 POWER SUPPLY DEVICE FOR THE HEATING DEVICE OF A HEATED DISPLAY, IN PARTICULAR A FLUORESCENCE DISPLAY ATE131682T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4020731A DE4020731A1 (en) 1990-06-29 1990-06-29 POWER SUPPLY DEVICE FOR THE HEATING DEVICE OF A HEATED DISPLAY, IN PARTICULAR A FLUORESCENCE DISPLAY

Publications (1)

Publication Number Publication Date
ATE131682T1 true ATE131682T1 (en) 1995-12-15

Family

ID=6409334

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91108630T ATE131682T1 (en) 1990-06-29 1991-05-28 POWER SUPPLY DEVICE FOR THE HEATING DEVICE OF A HEATED DISPLAY, IN PARTICULAR A FLUORESCENCE DISPLAY

Country Status (3)

Country Link
EP (1) EP0463387B1 (en)
AT (1) ATE131682T1 (en)
DE (2) DE4020731A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214021A1 (en) * 1992-04-29 1992-09-24 Karl Koehl Vacuum fluorescent display panel under drive circuit control - switching heating current on half cycle basis to avoid interference with control signals
WO2006056143A1 (en) 2004-11-29 2006-06-01 Century Concept Ltd. Electronic ballast with preheating and dimming control

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209729A (en) * 1978-06-21 1980-06-24 Texas Instruments Incorporated On chip vacuum fluorescent display drive
US4158794A (en) * 1978-07-14 1979-06-19 P. R. Mallory & Co. Inc. Drive means and method for vacuum fluorescent display systems
JPS58143386A (en) * 1982-02-19 1983-08-25 シャープ株式会社 Driver for fluorescent display tube

Also Published As

Publication number Publication date
EP0463387B1 (en) 1995-12-13
EP0463387A2 (en) 1992-01-02
DE59107056D1 (en) 1996-01-25
DE4020731A1 (en) 1992-01-02
EP0463387A3 (en) 1993-01-20

Similar Documents

Publication Publication Date Title
EP1198160A3 (en) Liquid crystal display device and lighting device
EP1748684A3 (en) High voltage discharge lamp apparatus for vehicles
CA2118933A1 (en) Power supply circuit
EP0998017A3 (en) Switching power supply unit
ATE131682T1 (en) POWER SUPPLY DEVICE FOR THE HEATING DEVICE OF A HEATED DISPLAY, IN PARTICULAR A FLUORESCENCE DISPLAY
JPH11298058A (en) Piezoelectric transformer-inverter for driving cold cathode tube, liquid crystal display and advertisement apparatus
DE69706397T2 (en) Supply circuit for discharge lamps with symmetrical resonance circuit
KR910004069A (en) Lighting equipment
ATE92653T1 (en) SUPPLY METHOD FOR MONOPHASE STEPPER MOTOR.
KR900005848A (en) Lighting equipment
ATE76246T1 (en) SUPPLY CIRCUIT FOR A LOW PRESSURE OR HIGH PRESSURE DISCHARGE LAMP, MERCURY LAMP OR SIMILAR.
GR3018703T3 (en) Method of regulating a quasi-resonant voltage inverter.
JPS6420034A (en) Illuminator for plant growth
BR9202319A (en) VOLTAGE-CURRENT ARC OVEN CONTINUES
KR930015973A (en) Lighting device
GB2023330A (en) Laser flashtube power supply
DE59406476D1 (en) Electronic ballast for supplying a load, for example a lamp
ATE165708T1 (en) DEVICE FOR VOLTAGE CONTROL OF A POWER SOURCE FOR DISCHARGE LAMPS
DE3870432D1 (en) POWER SUPPLY CIRCUIT FOR A GAS DISCHARGE LAMP.
CN2130317Y (en) Mini-size ultraviolet disinfecting instrument
KR930015974A (en) Lighting device
SE9201293D0 (en) LOW PRESSURE GAS CHARGING LIGHT OF LIGHT PIPE LAMP TYPE
ATE67062T1 (en) ELECTRICAL SUPPLY ARRANGEMENT OF A LIGHT SOURCE WITH HALOGEN LAMPS.
CN2214675Y (en) Zero potential starting guarantee device for microscope halogen lamp light source
CN2654115Y (en) Intelligent UV ray sterilization lamp