H05B41/2885 - CPC Classification Index

ClassID:

233272 ⎘

H05B41/2885 - CPC Classification

Classification description:

Circuit arrangements or apparatus for igniting or operating discharge lamps; 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 Static converters especially adapted therefor; Control thereof

Sub-classes:

H05B41/2886 » {comprising a controllable preconditioner, e.g. a booster} 89
H05B41/2887 » {characterised by a controllable bridge in the final stage} 107

Recent Application in this class:

20190029099

2019-01-24

LED LAMP

20170205693

2017-07-20

Projector and control method for projector

20140001954

2014-01-02

Circuit for discharging at input stage of a driver IC

20130234596

2013-09-12

Light emitting diodes driven by high intensity discharge ballast

20130063037

2013-03-14

Electronic ballast for a high intesity discharge lamp

20130027674

2013-01-31

Light source apparatus, discharge lamp driving method, and projector

20120194093

2012-08-02

High efficiency lighting assembly

20120074871

2012-03-29

Apparatus for controlling power supplied to discharge lamp in response to command supplied from outside the apparatus

20120043898

2012-02-23

Electronic ballast and method for operation of at least one discharge lamp

#10

20110273097

2011-11-10

Amp control system by controlling outputs of a buck DC-DC converter

#11

20110096248

2011-04-28

Projector lamp lighting device supplying AC current including low frequency region having current reduction waveform

#12

20110062885

2011-03-17

METHOD OF DRIVING AN UHP GAS-DISCHARGE LAMP

#13

20110057570

2011-03-10

Method and system for luminance characterization

#14

20100270939

2010-10-28

Method And Electronic Ballast for Operating a High Pressure Discharge Lamp

#15

20100219765

2010-09-02

Lighting apparatus for high-voltage discharge lamp

#16

20100128232

2010-05-27

High-pressure discharge lamp light source device having a power supply device with a switching state for switching from a direct current drive in a standby state to an alternating current drive in an operating state and projector

#17

20100103388

2010-04-29

Discharge lamp lighting device, method of controlling discharge lamp lighting device, and projector

#18

20100102749

2010-04-29

CIRCUIT ARRANGEMENT AND METHOD FOR ADAPTING THE OUTPUT OF HIGH-PRESSURE DISCHARGE LAMPS

#19

20100102742

2010-04-29

Electronic ballast

#20

20100052561

2010-03-04

METHOD FOR DRIVING AN INVERTER OF A GAS DISCHARGE SUPPLY CIRCUIT

#21

20100029973

2010-02-04

Fatty acid analogues for equilibrating bone mineral density

#22

20090323033

2009-12-31

Discharge lamp lighting device and image display device with switching frequency

#23

20090289572

2009-11-26

Ignition for ceramic metal halide high frequency ballasts

#24

20090289566

2009-11-26

Lighting Device for a Discharge Lamp

#25

20090267517

2009-10-29

Vehicle headlamp control apparatus, vehicle headlamp control system and vehicle headlamp, high intensity discharge lamp control apparatus, high intensity discharge lamp control system and vehicle headlamp

#26

20090251061

2009-10-08

Apparatus for Operating at Least One Discharge Lamp

#27

20090184651

2009-07-23

Circuit system for driving high-intensity discharging lamp

#28

20090153071

2009-06-18

Ignition circuit for igniting a discharge lamp and method for igniting the discharge lamp

#29

20090129134

2009-05-21

CONTROLLED CLASS-E DC AC CONVERTER

#30

20090091269

2009-04-09

High Frequency Pulsed Supply For Discharge Lamps

#31

20090079354

2009-03-26

ELECTRONIC BALLAST WITH LOW VOLTAGE OUTPUT

#32

20090039798

2009-02-12

Pulsed igniting device comprising a piezoelectric transformer for a high-pressure discharge lamp

#33

20090001893

2009-01-01

Method and system for luminance characterization

#34

20080315786

2008-12-25

Method and Circuit Arrangement For the Operation of a Discharge Lamp

#35

20080238334

2008-10-02

HID lamp ballast circuit

#36

20080211425

2008-09-04

Automotive HID headlamp ballast control IC

#37

20080093995

2008-04-24

Ballast For High Intensity Discharge Lamps

#38

20080048583

2008-02-28

Light source device, lighting and driving method thereof and projector

#39

20070285030

2007-12-13

Discharge centering lamp lighting device

#40

20070267982

2007-11-22

Discharge lamp lighting apparatus

#41

20070210723

2007-09-13

Discharge lamp lighting apparatus, luminaire and illumination system

#42

20070205725

2007-09-06

Electronic Power Control For Lamps

#43

20070200510

2007-08-30

Arc lamp improvements

#44

20070176565

2007-08-02

Power supply apparatus for discharge lamp and control method for the same

#45

20070090770

2007-04-26

Step sinusoidal voltage controlling method for hid, flourescent and incandescent light dimming applications

#46

20070040513

2007-02-22

Method and system for luminance characterization

#47

20070018591

2007-01-25

Ballast for high-pressure discharge lamp and method of operating the same

#48

20070007903

2007-01-11

Single-chip driving device for a high intensity discharge lamp

#49

20060284564

2006-12-21

Method and device for ballast management in particular for a motor vehicle headlamp

#50

20060209269

2006-09-21

Single light valve projection device and method for projecting images

#51

20060202641

2006-09-14

Method and device for measuring color temperature

#52

20060197470

2006-09-07

Automotive high intensity discharge lamp ballast circuit

#53

20060113922

2006-06-01

HID buck and full-bridge ballast control IC

#54

20060108949

2006-05-25

Device for operation of a discharge lamp of the short arc type

#55

20060097663

2006-05-11

High intensity discharge lamp with boost circuit

#56

20060071610

2006-04-06

High intensity discharge lamp control

#57

20060028153

2006-02-09

Discharge lamp lighting device

#58

20060012316

2006-01-19

Lamp operation controller and controlling method of lamp operation

#59

20060006818

2006-01-12

Process for operating a discharge lamp

#60

20050258765

2005-11-24

Arc maintenance device for high density discharge lamps including an adaptive wave form monitor

#61

20050189885

2005-09-01

Discharge lamp lighting device

#62

20050116661

2005-06-02

Discharge lamp apparatus

#63

20050093479

2005-05-05

Electronic ballast with rail voltage switching

#64

20050023994

2005-02-03

DC—DC converter and device for operation of a high pressure discharge lamp using said converter

#65

20050012473

2005-01-20

DC—DC converter and device for operation of a high pressure discharge lamp using said converter