JP2005276594A5 - - Google Patents

Download PDF

Info

Publication number
JP2005276594A5
JP2005276594A5 JP2004087164A JP2004087164A JP2005276594A5 JP 2005276594 A5 JP2005276594 A5 JP 2005276594A5 JP 2004087164 A JP2004087164 A JP 2004087164A JP 2004087164 A JP2004087164 A JP 2004087164A JP 2005276594 A5 JP2005276594 A5 JP 2005276594A5
Authority
JP
Japan
Prior art keywords
discharge lamp
power
mercury
steady
rectangular wave
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.)
Pending
Application number
JP2004087164A
Other languages
Japanese (ja)
Other versions
JP2005276594A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2004087164A priority Critical patent/JP2005276594A/en
Priority claimed from JP2004087164A external-priority patent/JP2005276594A/en
Publication of JP2005276594A publication Critical patent/JP2005276594A/en
Publication of JP2005276594A5 publication Critical patent/JP2005276594A5/ja
Pending legal-status Critical Current

Links

Claims (3)

直流電圧を発生する直流電源回路を有し、発生した直流電圧を矩形波交流に変換し、この矩形波交流をもとに、水銀レス放電灯をグロー放電による起動時の放電からアーク放電による定常点灯へ移行させ、この定常点灯を持続させるように水銀レス放電灯へ電力を供給する放電灯点灯部と、
前記放電灯点灯部による電力供給により水銀レス放電灯へ流れる電流を検出する電流検出部と、
前記矩形波交流への変換を制御する一方、前記電流検出部より電流検出信号を入力し、前記矩形波交流の正負極性切換時の近傍以外の期間では前記電流検出信号をもとに、前記水銀レス放電灯へ定常電力を供給するように前記放電灯点灯部の直流電源回路における出力電力を制御し、前記矩形波交流の正負極性切換時の近傍においては、前記水銀レス放電灯へ供給する電力を前記定常電力より増加するように前記直流電源回路における出力電力を制御する電力制御部とを備えた放電灯点灯装置。 It has a DC power supply circuit that generates DC voltage, converts the generated DC voltage into rectangular wave AC, and based on this rectangular wave AC, the mercury-less discharge lamp is steady from arc discharge to steady discharge due to glow discharge. A discharge lamp lighting unit for supplying power to the mercury-less discharge lamp so as to shift to lighting and sustain this steady lighting;
A current detection unit for detecting a current flowing to the mercury-less discharge lamp by power supply by the discharge lamp lighting unit;
While controlling the conversion to the rectangular wave alternating current, a current detection signal is input from the current detection unit, and the mercury is generated based on the current detection signal in a period other than the vicinity when the positive / negative polarity switching of the rectangular wave alternating current is switched. The output power in the DC power supply circuit of the discharge lamp lighting unit is controlled so as to supply steady power to the less discharge lamp, and the power supplied to the mercury-less discharge lamp in the vicinity of the positive / negative polarity switching of the rectangular wave AC A discharge lamp lighting device comprising: a power control unit that controls output power in the DC power supply circuit so that the power is increased from the steady power. 電力制御部は、水銀レス放電灯が点灯直後から定常点灯へ移行する過程及び定常点灯時に、矩形波交流の正負極性切換時の近傍において水銀レス放電灯へ供給する電力を増加するように制御することを特徴とする請求項１記載の放電灯点灯装置。 The power control unit performs control so that the power supplied to the mercury-less discharge lamp is increased in the vicinity of the switching of the positive and negative polarity of the rectangular wave alternating current during the process of the mercury-less discharge lamp shifting from lighting to steady lighting and during steady lighting The discharge lamp lighting device according to claim 1. 電力制御部は、矩形波交流の正負極性切換時の近傍における水銀レス放電灯への供給電力の増加を制限する電力増加制限手段を備えたことを特徴とする請求項１記載の放電灯点灯装置。 2. The discharge lamp lighting device according to claim 1, wherein the power control unit includes a power increase limiting means for limiting an increase in power supplied to the mercury-less discharge lamp in the vicinity of when the rectangular wave AC is switched between positive and negative polarities. .
JP2004087164A 2004-03-24 2004-03-24 Discharge lamp lighting device Pending JP2005276594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004087164A JP2005276594A (en) 2004-03-24 2004-03-24 Discharge lamp lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004087164A JP2005276594A (en) 2004-03-24 2004-03-24 Discharge lamp lighting device

Publications (2)

Publication Number Publication Date
JP2005276594A JP2005276594A (en) 2005-10-06
JP2005276594A5 true JP2005276594A5 (en) 2006-08-24

Family

ID=35176033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004087164A Pending JP2005276594A (en) 2004-03-24 2004-03-24 Discharge lamp lighting device

Country Status (1)

Country Link
JP (1) JP2005276594A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007157475A (en) * 2005-12-05 2007-06-21 Hitachi Media Electoronics Co Ltd Discharge lamp lighting device

Similar Documents

Publication Publication Date Title
JP2010282757A5 (en)
WO2006096638A3 (en) Automotive high intensity discharge lamp ballast circuit
JP2012227051A (en) Lighting device and illuminating fixture
JP5676593B2 (en) Drivers working with Wall Dimmer
TWI461095B (en) Method and apparatus for controlling brightness of light emitting diodes
EP2154936A3 (en) High pressure discharge lamp lighting device and luminaire
JP4931119B2 (en) LIGHTING CONTROL METHOD AND LIGHTING CONTROL DEVICE
JP2001244088A5 (en)
JP2005276594A5 (en)
TW201230862A (en) Led driving apparatus
JP2011142043A (en) Lighting device
JP2007141826A (en) Starting method of mercury-free flat fluorescent lamp
JP2006074973A5 (en)
JP2008010396A (en) Fluorescent lamp fixture
JP2005100786A (en) Discharge lamp lighting device
JP2013201030A (en) High-pressure discharge lamp lighting device and projector using the same
TW200638803A (en) Electroluminescent lamp driving circuit and method
JP2011502334A5 (en)
US9131588B2 (en) Discharge lamp system and controlling method of the same
JP5721496B2 (en) Light source lighting device and lighting device
JP2006302599A5 (en)
TW200718285A (en) A control circuit and a controller for a light-emitting unit
JP2004165006A (en) Method and apparatus for lighting discharge lamp
TW200640294A (en) Discharge lamp lighting apparatus
KR200292350Y1 (en) Illumination Controlling Apparatus