TW200708200A - Lamp driving device - Google Patents

Lamp driving device

Info

Publication number
TW200708200A
TW200708200A TW095122770A TW95122770A TW200708200A TW 200708200 A TW200708200 A TW 200708200A TW 095122770 A TW095122770 A TW 095122770A TW 95122770 A TW95122770 A TW 95122770A TW 200708200 A TW200708200 A TW 200708200A
Authority
TW
Taiwan
Prior art keywords
inverter
lamp driver
frequency
driving device
converter
Prior art date
Application number
TW095122770A
Other languages
Chinese (zh)
Inventor
Ulrich Boeke
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200708200A publication Critical patent/TW200708200A/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
    • H05B41/2825—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
    • H05B41/26—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
    • H05B41/2821—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 single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2824—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 single-switch converter or a parallel push-pull converter in the final stage using control circuits for the switching element

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

The present invention relates to a lamp driver with a load-resonant inverter (4), which can be driven to deliver a desired power output level at desired frequency. The frequency can be chosen such, that interference with a display system can be avoided when the lamp driver is used in the backlighting system of this system. The lamp driver comprises means (6) for determining a parameter corresponding to the switching frequency or the output current of the inverter, a DC/DC converter (3) delivering an intermediate DC voltage to supply the inverter, and means for controlling the output of the DC/DC converter, such that the desired inverter switching frequency at the desired power level is achieved.
TW095122770A 2005-06-27 2006-06-23 Lamp driving device TW200708200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05105706 2005-06-27

Publications (1)

Publication Number Publication Date
TW200708200A true TW200708200A (en) 2007-02-16

Family

ID=37110221

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095122770A TW200708200A (en) 2005-06-27 2006-06-23 Lamp driving device

Country Status (2)

Country Link
TW (1) TW200708200A (en)
WO (1) WO2007000684A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7855262B2 (en) 2005-05-17 2010-12-21 Sun Chemical Corporation Size selective catalysis with ion exchange resins
DE102009030106B4 (en) 2009-06-22 2015-07-30 Minebea Co., Ltd. Method for controlling gas discharge lamps

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2587710B2 (en) * 1990-04-28 1997-03-05 株式会社小糸製作所 Lighting circuit for vehicle discharge lamps
US5872429A (en) * 1995-03-31 1999-02-16 Philips Electronics North America Corporation Coded communication system and method for controlling an electric lamp
JP2000268989A (en) * 1999-03-12 2000-09-29 Koito Mfg Co Ltd Discharge lamp lighting circuit
IL138493A0 (en) * 2000-09-15 2001-10-31 Lightech Electronics Ind Ltd Electronic ballast for high-intensity discharge lamps
KR100401100B1 (en) * 2000-11-22 2003-10-10 삼성전기주식회사 Back-light inverter of LCD
DE10063328A1 (en) * 2000-12-19 2002-06-27 Hella Kg Hueck & Co Device for starting and operating gas discharge lamp in motor vehicle switches off power switch after delay if signal output by current detector reaches signal defined by limiter
EP1227706B1 (en) * 2001-01-24 2012-11-28 City University of Hong Kong Novel circuit designs and control techniques for high frequency electronic ballasts for high intensity discharge lamps
DE20103718U1 (en) * 2001-03-05 2001-06-21 GLP Light Production GmbH, 76307 Karlsbad Ballast for a consumer to be operated according to a characteristic curve
US6728118B1 (en) * 2002-11-13 2004-04-27 Innoveta Technologies, Inc. Highly efficient, tightly regulated DC-to-DC converter
US7078870B2 (en) * 2003-09-30 2006-07-18 International Rectifier Corporation Simplified topology for HID lamps

Also Published As

Publication number Publication date
WO2007000684A1 (en) 2007-01-04

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