WO2003011004A1 - Lighting apparatus for discharge lamp - Google Patents

Lighting apparatus for discharge lamp Download PDF

Info

Publication number
WO2003011004A1
WO2003011004A1 PCT/JP2001/006400 JP0106400W WO03011004A1 WO 2003011004 A1 WO2003011004 A1 WO 2003011004A1 JP 0106400 W JP0106400 W JP 0106400W WO 03011004 A1 WO03011004 A1 WO 03011004A1
Authority
WO
WIPO (PCT)
Prior art keywords
discharge lamp
current
power supply
inverter circuit
lighting apparatus
Prior art date
Application number
PCT/JP2001/006400
Other languages
French (fr)
Japanese (ja)
Inventor
Osamu Takahashi
Yoshitaka Igarashi
Shinsuke Funayama
Naoki Wada
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Mitsubishi Electric Lighting Corporation
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 Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Lighting Corporation filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to PCT/JP2001/006400 priority Critical patent/WO2003011004A1/en
Priority to JP2003518057A priority patent/JPWO2003011004A1/en
Publication of WO2003011004A1 publication Critical patent/WO2003011004A1/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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

A lighting apparatus for discharge lamp comprising a DC power supply (1), an inverter circuit comprising switching elements (2, 3) for converting a DC current from the DC power supply (1) into a high frequency current, a discharge lamp (5) being lighted with a high frequency current from the inverter circuit, a choke coil (4) for limiting the current of the discharge lamp (5), a coupling capacitor (7) being connected in series with the discharge lamp (5), a current transformer (21) having a secondary winding and connected, on the input side thereof, to the joint of the discharge lamp (5) and the coupling capacitor (7) and, on the output side thereof, to the high voltage side and the low voltage side of the DC power supply (1) through diodes (20, 19), respectively, and a protective circuit (9) for stopping oscillation of the inverter circuit based on a voltage induced in the secondary winding of the current transformer (21).
PCT/JP2001/006400 2001-07-25 2001-07-25 Lighting apparatus for discharge lamp WO2003011004A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2001/006400 WO2003011004A1 (en) 2001-07-25 2001-07-25 Lighting apparatus for discharge lamp
JP2003518057A JPWO2003011004A1 (en) 2001-07-25 2001-07-25 Discharge lamp lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/006400 WO2003011004A1 (en) 2001-07-25 2001-07-25 Lighting apparatus for discharge lamp

Publications (1)

Publication Number Publication Date
WO2003011004A1 true WO2003011004A1 (en) 2003-02-06

Family

ID=11737582

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/006400 WO2003011004A1 (en) 2001-07-25 2001-07-25 Lighting apparatus for discharge lamp

Country Status (2)

Country Link
JP (1) JPWO2003011004A1 (en)
WO (1) WO2003011004A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008243462A (en) * 2007-03-26 2008-10-09 Mitsubishi Electric Corp Discharge lamp lighting device and luminaire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06111973A (en) * 1992-09-25 1994-04-22 Matsushita Electric Works Ltd Electric discharge lamp lighting device
JPH11135289A (en) * 1997-10-28 1999-05-21 Matsushita Electric Works Ltd Lighting device for discharge lamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06111973A (en) * 1992-09-25 1994-04-22 Matsushita Electric Works Ltd Electric discharge lamp lighting device
JPH11135289A (en) * 1997-10-28 1999-05-21 Matsushita Electric Works Ltd Lighting device for discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008243462A (en) * 2007-03-26 2008-10-09 Mitsubishi Electric Corp Discharge lamp lighting device and luminaire

Also Published As

Publication number Publication date
JPWO2003011004A1 (en) 2004-11-18

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