EP1001663A3 - Electronic ballast for operating high pressure gas discharge lamps - Google Patents

Electronic ballast for operating high pressure gas discharge lamps Download PDF

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Publication number
EP1001663A3
EP1001663A3 EP99122183A EP99122183A EP1001663A3 EP 1001663 A3 EP1001663 A3 EP 1001663A3 EP 99122183 A EP99122183 A EP 99122183A EP 99122183 A EP99122183 A EP 99122183A EP 1001663 A3 EP1001663 A3 EP 1001663A3
Authority
EP
European Patent Office
Prior art keywords
bridge
high pressure
gas discharge
pressure gas
discharge lamps
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.)
Withdrawn
Application number
EP99122183A
Other languages
German (de)
French (fr)
Other versions
EP1001663A2 (en
Inventor
Wolfgang Daub
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP1001663A2 publication Critical patent/EP1001663A2/en
Publication of EP1001663A3 publication Critical patent/EP1001663A3/en
Withdrawn legal-status Critical Current

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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
    • H05B41/288—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 without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2921—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2926—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against internal abnormal circuit conditions

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  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

Beschrieben wird ein Vorschaltgerät zum Betreiben von Hochdruck-Gasentladungslampen bei der die Hochdruck-Gasentladungslampe über eine H-Brückenschaltung angesteuert wird. Das Vorschaltgerät ist so aufgebaut, daß die H-Brückenschalter durch zwei zueinander invertierte digitale Signale gesteuert werden, wobei jedes Signal zueinander diagonal angeordnete H-Brückenschalter steuert und daß jedes Signal zusätzlich am Steuereingang eines Halbleiterschalters anliegt, welcher den Steuerkreis eines H-Brückenschalters der jeweils nichtangesteuerten Brückendiagonale kurzschließt oder niederohmig verbindet und so einen sehr schnellen Ladungsausgleich in der Steuerstrecke des H-Brückenschalter bewirkt.A ballast for operating is described High pressure gas discharge lamps in which the high pressure gas discharge lamp is controlled via an H-bridge circuit. The ballast is like this built that the H-bridge switch by two inverted digital Signals are controlled, each signal being arranged diagonally to one another H-bridge switch controls and that each signal additionally at the control input a semiconductor switch is present, which the control circuit of a H-bridge switch of the non-activated bridge diagonal short-circuits or connects low-resistance and so a very fast Charge equalization in the control path of the H-bridge switch.

Durch die erfindungsgemäße Maßnahme werden Querströme in den H-Brückenzweigen auf einfache Weise wirkungsvoll vermieden.

Figure 00000001
The inventive measure cross currents in the H-bridge branches are effectively avoided in a simple manner.
Figure 00000001
EP99122183A 1998-11-10 1999-11-06 Electronic ballast for operating high pressure gas discharge lamps Withdrawn EP1001663A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19851652 1998-11-10
DE1998151652 DE19851652A1 (en) 1998-11-10 1998-11-10 Ballast for operating high pressure gas discharge lamps

Publications (2)

Publication Number Publication Date
EP1001663A2 EP1001663A2 (en) 2000-05-17
EP1001663A3 true EP1001663A3 (en) 2002-11-13

Family

ID=7887204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122183A Withdrawn EP1001663A3 (en) 1998-11-10 1999-11-06 Electronic ballast for operating high pressure gas discharge lamps

Country Status (2)

Country Link
EP (1) EP1001663A3 (en)
DE (1) DE19851652A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007021205A1 (en) * 2007-05-05 2008-11-06 Hella Kgaa Hueck & Co. Control for the switches of an H-bridge circuit for operating a high-pressure gas discharge lamp in motor vehicles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2604491A1 (en) * 1976-02-03 1977-08-04 Licentia Gmbh Protective circuit for two-stage push"pull chopper - has complementary transistors in first stage with emitters positively and negatively based
EP0398432A1 (en) * 1989-05-17 1990-11-22 Koninklijke Philips Electronics N.V. Switching arrangement
EP0581091A1 (en) * 1992-07-29 1994-02-02 Hella KG Hueck & Co. Ballast for supplying high pressure discharge lamps in vehicles with a low-frequency square-wave voltage
FR2701339A1 (en) * 1993-02-08 1994-08-12 Valeo Vision Electrical power supply device cyclically delivering a voltage at the alternate polarities

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904907A (en) * 1988-02-26 1990-02-27 General Electric Company Ballast circuit for metal halide lamp
IT1261596B (en) * 1993-09-30 1996-05-23 Marelli Autronica CONTROL CIRCUIT FOR A GAS DISCHARGE LAMP, PARTICULARLY FOR VEHICLES.
DE4442658B4 (en) * 1993-11-30 2004-09-16 Koito Mfg. Co., Ltd. Circuit arrangement for starting and operating a high-pressure discharge lamp for vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2604491A1 (en) * 1976-02-03 1977-08-04 Licentia Gmbh Protective circuit for two-stage push"pull chopper - has complementary transistors in first stage with emitters positively and negatively based
EP0398432A1 (en) * 1989-05-17 1990-11-22 Koninklijke Philips Electronics N.V. Switching arrangement
EP0581091A1 (en) * 1992-07-29 1994-02-02 Hella KG Hueck & Co. Ballast for supplying high pressure discharge lamps in vehicles with a low-frequency square-wave voltage
FR2701339A1 (en) * 1993-02-08 1994-08-12 Valeo Vision Electrical power supply device cyclically delivering a voltage at the alternate polarities

Also Published As

Publication number Publication date
DE19851652A1 (en) 2000-05-11
EP1001663A2 (en) 2000-05-17

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