AU3890193A - Electronic ballast for a gas discharge lamp - Google Patents

Electronic ballast for a gas discharge lamp

Info

Publication number
AU3890193A
AU3890193A AU38901/93A AU3890193A AU3890193A AU 3890193 A AU3890193 A AU 3890193A AU 38901/93 A AU38901/93 A AU 38901/93A AU 3890193 A AU3890193 A AU 3890193A AU 3890193 A AU3890193 A AU 3890193A
Authority
AU
Australia
Prior art keywords
mass
terminal
lamp
mains
gas discharge
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.)
Abandoned
Application number
AU38901/93A
Inventor
Siegfried Luger
Thomas Marinelli
Alfred Trostl
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
Original Assignee
TRIDONIC
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=6455586&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU3890193(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by TRIDONIC filed Critical TRIDONIC
Publication of AU3890193A publication Critical patent/AU3890193A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0064—Earth or grounding circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • 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
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

In electronic ballasts for gas discharge lamps (3) which consist of a bridge rectifier (1) to be connected to the a.c. mains and a converter (2) connected downstream thereof, the brightness of the lamp may flicker, which is particularly annoying with the lamp (3) dimmed. To prevent this flicker, it is opposed that the operating potential terminal (mass) (6) inside the circuit be connected in the a.c. manner to the protective earth (S) of the a.c. mains. A second method may consist in connecting the internal reference potential terminal (mass) (6) to the phase terminal (L) and/or the neutral terminal (N) or with one or both of input terminals (10, 11) of the bridge rectifier (1) in the a.c. manner. In a third method, the a.c. 'hot' output terminal of the bridge rectifier (1), which is connected to the internal reference potential terminal (mass) (6) via a smoothing capacitor (C4), is to be connected in the a.c. manner to the protective earth (S) of the a.c. mains. Yet another method is to screen the lines (15-18) leading to the lamp (3) and to connect the screens (15, 16, 17, 18) to the circuit-internal reference potential terminal (mass) (6).
AU38901/93A 1992-03-31 1993-03-29 Electronic ballast for a gas discharge lamp Abandoned AU3890193A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4210624 1992-03-31
DE4210624A DE4210624A1 (en) 1992-03-31 1992-03-31 Electronic ballast for a gas discharge lamp

Publications (1)

Publication Number Publication Date
AU3890193A true AU3890193A (en) 1993-11-08

Family

ID=6455586

Family Applications (1)

Application Number Title Priority Date Filing Date
AU38901/93A Abandoned AU3890193A (en) 1992-03-31 1993-03-29 Electronic ballast for a gas discharge lamp

Country Status (5)

Country Link
EP (1) EP0634087B2 (en)
AT (1) ATE155313T1 (en)
AU (1) AU3890193A (en)
DE (2) DE4210624A1 (en)
WO (1) WO1993020677A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2067386B1 (en) * 2006-09-25 2010-11-24 Osram Gesellschaft mit beschränkter Haftung Emc improvement by means of rf absorption in luminaires and electronic ballasts
DE102007012413A1 (en) * 2007-03-15 2008-09-18 Vossloh-Schwabe Deutschland Gmbh Ballast with improved EMC compatibility
DE102007040556B4 (en) 2007-08-28 2016-03-03 Tridonic Gmbh & Co Kg Method for igniting a discharge lamp and corresponding electronic ballast
KR20100075495A (en) * 2007-09-12 2010-07-02 오스람 게젤샤프트 미트 베쉬랭크터 하프퉁 Improved applicability of lamps with electronic ballast without a protective earth conductor
WO2010028679A1 (en) * 2008-09-09 2010-03-18 Osram Gesellschaft mit beschränkter Haftung Circuit arrangement for supplying a lighting means, electronic ballast and lamp or luminaire
DE102011056288A1 (en) 2011-12-12 2013-06-13 Vossloh-Schwabe Deutschland Gmbh Power-operated device i.e. ballast, for operating e.g. light source, has electronic circuit switched with series circuit that is electrically connected to two input terminals or to two output terminals of rectifier
EP2905888A1 (en) 2014-02-05 2015-08-12 Grundfos Holding A/S Inverter
DE202015100759U1 (en) 2015-02-18 2016-05-19 Tridonic Gmbh & Co Kg Device for operating bulbs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606226B1 (en) * 1986-11-05 1988-12-09 Merlin Gerin STATIC CONVERTER COMPRISING A PROTECTION FILTER AGAINST HIGH FREQUENCY DISTURBANCES
ATE103458T1 (en) * 1988-04-20 1994-04-15 Zumtobel Ag BALLAST FOR A DISCHARGE LAMP.
US4943886A (en) * 1989-02-10 1990-07-24 Etta Industries, Inc. Circuitry for limiting current between power inverter output terminals and ground
JPH03230764A (en) * 1990-02-01 1991-10-14 Toshiba Corp Power supply device using pwm control
DE9110133U1 (en) † 1991-08-16 1991-09-26 Rütgerswerke AG, 6000 Frankfurt Stirred reactor

Also Published As

Publication number Publication date
WO1993020677A1 (en) 1993-10-14
EP0634087B2 (en) 2009-04-15
ATE155313T1 (en) 1997-07-15
EP0634087B1 (en) 1997-07-09
EP0634087A1 (en) 1995-01-18
DE59306888D1 (en) 1997-08-14
DE4210624A1 (en) 1993-10-07

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