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AU5371594A - Ballast for at least one pair of gas discharge lamps in parallel - Google Patents

Ballast for at least one pair of gas discharge lamps in parallel

Info

Publication number
AU5371594A
AU5371594A AU53715/94A AU5371594A AU5371594A AU 5371594 A AU5371594 A AU 5371594A AU 53715/94 A AU53715/94 A AU 53715/94A AU 5371594 A AU5371594 A AU 5371594A AU 5371594 A AU5371594 A AU 5371594A
Authority
AU
Australia
Prior art keywords
pair
ballast
parallel
gas discharge
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.)
Abandoned
Application number
AU53715/94A
Inventor
Andreas Scholl
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 Bauelemente GmbH
Original Assignee
Tridonic Bauelemente 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6476455&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU5371594(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tridonic Bauelemente GmbH filed Critical Tridonic Bauelemente GmbH
Publication of AU5371594A publication Critical patent/AU5371594A/en
Abandoned legal-status Critical Current

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
    • H05B41/2825—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
    • H05B41/2827—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 specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
    • 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
    • H05B41/382—Controlling the intensity of light during the transitional start-up phase

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

A ballast for at least one pair of gas discharge lamps in parallel has a rectifier (G) to be connected to the a.c. mains and a converter (WR) connected downstream thereof. A series resonant circuit (LR, CR) is connected to the output of the converter. To the pair of lamps (L1, L2) is allocated a balancing transformer (TS1) having two counteraction windings (WS1, WS2). The two windings are interconnected at one end. The connection point is connected to that of the choke (LR) and of the resonant capacitor (CR) of the series resonant circuit. The other end of the two windings are connected to one electrode of the two lamps (L1, L2).
AU53715/94A 1992-12-23 1993-10-28 Ballast for at least one pair of gas discharge lamps in parallel Abandoned AU5371594A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4243955A DE4243955B4 (en) 1992-12-23 1992-12-23 Ballast for at least one parallel-operated pair of gas discharge lamps
DE4243955 1992-12-23
PCT/EP1993/002995 WO1994015444A1 (en) 1992-12-23 1993-10-28 Ballast for at least one pair of gas discharge lamps in parallel

Publications (1)

Publication Number Publication Date
AU5371594A true AU5371594A (en) 1994-07-19

Family

ID=6476455

Family Applications (1)

Application Number Title Priority Date Filing Date
AU53715/94A Abandoned AU5371594A (en) 1992-12-23 1993-10-28 Ballast for at least one pair of gas discharge lamps in parallel

Country Status (9)

Country Link
EP (1) EP0676121B1 (en)
AT (1) ATE148297T1 (en)
AU (1) AU5371594A (en)
DE (2) DE4243955B4 (en)
ES (1) ES2097550T3 (en)
FI (1) FI111791B (en)
NO (1) NO308690B1 (en)
WO (1) WO1994015444A1 (en)
ZA (1) ZA939579B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766500B1 (en) * 1995-09-27 2001-12-12 Koninklijke Philips Electronics N.V. Ballast with balancer transformer for fluorescent lamps
DE19782217C2 (en) * 1996-06-25 2002-10-10 Gore W L & Ass Gmbh Water-resistant water vapour-permeable oleophobic microporous polymer film
DE19625389A1 (en) * 1996-06-25 1998-01-02 Gore W L & Ass Gmbh Flexible composite
DE19715341C1 (en) * 1997-04-12 1998-10-15 Vossloh Schwabe Gmbh Electronic ballast with automatic restart
DE19715342C1 (en) * 1997-04-12 1998-12-17 Vossloh Schwabe Gmbh Ballast for independent parallel operation of low pressure gas discharge lamps
US6069455A (en) 1998-04-15 2000-05-30 Electro-Mag International, Inc. Ballast having a selectively resonant circuit
US6310444B1 (en) * 2000-08-10 2001-10-30 Philips Electronics North America Corporation Multiple lamp LCD backlight driver with coupled magnetic components
DE10049842A1 (en) * 2000-10-09 2002-04-11 Tridonic Bauelemente Operating circuit for gas discharge lamps, has additional DC supply line for each gas discharge lamp for preventing unwanted lamp extinction
DE10134966A1 (en) 2001-07-23 2003-02-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Ballast for operating at least one low-pressure discharge lamp
US6979959B2 (en) 2002-12-13 2005-12-27 Microsemi Corporation Apparatus and method for striking a fluorescent lamp
US7187139B2 (en) 2003-09-09 2007-03-06 Microsemi Corporation Split phase inverters for CCFL backlight system
US7183727B2 (en) 2003-09-23 2007-02-27 Microsemi Corporation Optical and temperature feedbacks to control display brightness
US7294971B2 (en) 2003-10-06 2007-11-13 Microsemi Corporation Balancing transformers for ring balancer
US7250726B2 (en) 2003-10-21 2007-07-31 Microsemi Corporation Systems and methods for a transformer configuration with a tree topology for current balancing in gas discharge lamps
US7187140B2 (en) 2003-12-16 2007-03-06 Microsemi Corporation Lamp current control using profile synthesizer
US7468722B2 (en) 2004-02-09 2008-12-23 Microsemi Corporation Method and apparatus to control display brightness with ambient light correction
US7250731B2 (en) 2004-04-07 2007-07-31 Microsemi Corporation Primary side current balancing scheme for multiple CCF lamp operation
US7309964B2 (en) 2004-10-01 2007-12-18 Au Optronics Corporation Floating drive circuit for cold cathode fluorescent lamp
US7173382B2 (en) 2005-03-31 2007-02-06 Microsemi Corporation Nested balancing topology for balancing current among multiple lamps
US7414371B1 (en) 2005-11-21 2008-08-19 Microsemi Corporation Voltage regulation loop with variable gain control for inverter circuit
US7569998B2 (en) 2006-07-06 2009-08-04 Microsemi Corporation Striking and open lamp regulation for CCFL controller
DE102007054805A1 (en) * 2007-11-16 2009-05-20 Tridonicatco Schweiz Ag Circuit arrangement for operating gas discharge lamps, for example HID lamps
US9030119B2 (en) 2010-07-19 2015-05-12 Microsemi Corporation LED string driver arrangement with non-dissipative current balancer
DE102010063867A1 (en) * 2010-12-22 2012-06-28 Tridonic Gmbh & Co Kg Ignition control and ignition detection of gas discharge lamps
CN103477712B (en) 2011-05-03 2015-04-08 美高森美公司 High efficiency LED driving method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412942C2 (en) * 1984-04-06 1986-02-20 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg Electronic ballast for several fluorescent lamps
DK339586D0 (en) * 1986-07-16 1986-07-16 Silver Gruppen Prod As ELECTRONIC BALLAST
US4902942A (en) * 1988-06-02 1990-02-20 General Electric Company Controlled leakage transformer for fluorescent lamp ballast including integral ballasting inductor
JPH03116689A (en) * 1989-09-29 1991-05-17 Toshiba Lighting & Technol Corp Discharge lamp lighting device
US5081401A (en) * 1990-09-10 1992-01-14 Motorola, Inc. Driver circuit for a plurality of gas discharge lamps
DE4039161C2 (en) * 1990-12-07 2001-05-31 Zumtobel Ag Dornbirn System for controlling the brightness and operating behavior of fluorescent lamps

Also Published As

Publication number Publication date
ATE148297T1 (en) 1997-02-15
ZA939579B (en) 1994-08-11
FI111791B (en) 2003-09-15
DE4243955A1 (en) 1994-06-30
NO308690B1 (en) 2000-10-09
DE59305294D1 (en) 1997-03-06
EP0676121B1 (en) 1997-01-22
ES2097550T3 (en) 1997-04-01
EP0676121A1 (en) 1995-10-11
FI952655A0 (en) 1995-05-31
FI952655L (en) 1995-05-31
DE4243955B4 (en) 2010-11-18
NO952517D0 (en) 1995-06-22
WO1994015444A1 (en) 1994-07-07
NO952517L (en) 1995-06-22

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