| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 01/03/2008 | DE102006031341A1 Warm start fluorescent lamp operating method for use in electronic ballast, involves determining parameter, which renders aging condition of coil, and supplying determined aging parameter to electronic control and/or regulation circuit |
| 01/02/2008 | EP1872636A1 Adjustable digital lighting power regulation |
| 01/02/2008 | EP1872635A1 Operating devices with lamp regulation by analysis of the lamp temperature |
| 01/02/2008 | EP1872634A1 Electronic reactive current oscillation-reducing ballast |
| 01/02/2008 | EP1872633A1 Electronic reactive current oscillation-reducing ballast |
| 01/02/2008 | EP1872632A1 Electronic ballast with phase dimmer detection |
| 01/02/2008 | EP1872631A1 Adjustable digital illuminating means output control |
| 01/02/2008 | EP1872630A1 Intelligent flyback-heating |
| 01/02/2008 | EP1872629A1 Protection of an emitting branch of an interface device |
| 01/02/2008 | EP1872628A1 Self-exciting step-up converter |
| 01/02/2008 | EP1872627A2 Parameterizable digital pfc (power factor correlation) |
| 01/02/2008 | EP1872626A2 Control circuit for maintaining constant power in power factor corrected electronic ballasts and power supplies |
| 01/02/2008 | CN201001232Y Intelligent program controlled electrodeless lamp |
| 01/02/2008 | CN201001231Y RF driving source of electrodeless mercury lamp |
| 01/02/2008 | CN201001230Y 电流模式谐振镇流器 Current mode resonant ballast |
| 01/02/2008 | CN101099417A Lighting ballast having boost converter with on/off control and method of ballast operation |
| 01/02/2008 | CN101099416A Electronic ballast(EVG) |
| 01/02/2008 | CN101098580A Discharge lamp lighting circuit and control method thereof |
| 01/02/2008 | CN101098579A Limited current circuit of digital inverter for LCD backlight |
| 01/02/2008 | CN101098578A Lamp tube driving circuit |
| 01/02/2008 | CN101097047A Small power long distance high-pressure discharge infrared lamp |
| 01/02/2008 | CN100359386C Inverter apparatus and liquid crystal display including inverter apparatus |
| 01/02/2008 | CN100359382C Driving unit of fluorescent lamp and its driving method |
| 01/01/2008 | US7315464 Drive system and AC conversion device |
| 01/01/2008 | US7315298 Apparatus for controlling CCFL and method for operating the same |
| 01/01/2008 | US7315136 Protection apparatus and multi-lamp driving system using the same |
| 01/01/2008 | US7315135 Load driving device and load driving method |
| 01/01/2008 | US7315134 Power supply for a high voltage device |
| 01/01/2008 | US7315132 Apparatus for driving lamp of liquid crystal display device |
| 01/01/2008 | US7315036 Multifunction multi-spectrum signalling device |
| 12/27/2007 | WO2007148273A1 Glow starter switch for discharge lamp operation |
| 12/27/2007 | WO2007148166A1 Portable communication device equipped with an electronic flash having a led ignition device |
| 12/27/2007 | WO2007147725A1 Method for detecting the cutting off signal of bjt in an electronic ballast and the electronic ballast |
| 12/27/2007 | WO2007147722A1 Device and method for the operation of a high-pressure discharge lamp |
| 12/27/2007 | WO2007147512A1 Dimmable operating device with internal dimming calibration curve |
| 12/27/2007 | US20070297175 Method for Establishing a Light Beam With Substantially Constant Luminous Intensity |
| 12/27/2007 | US20070296716 Digital controlled multi-light driving apparatus and driving-control method for driving and controlling lights |
| 12/27/2007 | US20070296355 Discharge Lamp Ballast Device and Lighting Appliance |
| 12/27/2007 | US20070296350 Method and apparatus for packaging circuitry within a lightbulb |
| 12/27/2007 | US20070296349 Method For Operation Of A High Pressure Discharge Lamp Operating Device For A High Pressure Discharge Lamp And High Pressure Discharge Lamp With An Operating Device |
| 12/27/2007 | US20070296347 Multiple location dimming system |
| 12/27/2007 | DE202007014609U1 Vorschaltgerät für eine Lampe Ballast for a lamp |
| 12/27/2007 | DE102007027931A1 Lamp e.g. high intensity discharge lamp, ballast, has conversion circuit for converting pulsed direct current output signal into alternating current control signal with waveform that is varied with high frequency |
| 12/27/2007 | DE102007026629A1 Circuit arrangement for operating tubular fluorescent lamps, has zener voltage lying between maximum value of voltage at current passing through lamp electrode and maximum value of voltage at interrupted lamp electrode |
| 12/27/2007 | DE102006028821A1 Vorrichtung und Verfahren zum Betreiben einer Hochdruckentladungslampe Apparatus and method for operating a high pressure discharge lamp |
| 12/27/2007 | CA2655840A1 Method for detecting the cutting off signal of bjt in an electronic ballast and the electronic ballast |
| 12/26/2007 | EP1871148A1 Backlight control apparatus and display apparatus |
| 12/26/2007 | EP1871147A1 Method and ballast to start discharge lamp |
| 12/26/2007 | EP1869955A2 Method for lamp life control of a gas discharge lamp, a gas discharge lamp driver circuit, a gas discharge lamp and an assembly of a gas discharge lamp and a lamp driver circuit |
| 12/26/2007 | EP1869954A1 Device for operating or starting a high-pressure discharge lamp, lamp socket and illumination system with such a device and method for operation of a high-pressure discharge lamp |
| 12/26/2007 | EP1869953A1 Pulse starting circuit |
| 12/26/2007 | EP1869952A1 Starter auxiliary electrode starting device with an arc gap |
| 12/26/2007 | EP1869951A1 Pulsed igniting device comprising a piezoelectric transformer for a high-pressure discharge lamp |
| 12/26/2007 | EP1869318A2 Fiel configure ballast |
| 12/26/2007 | EP1566080B1 Circuit arrangement for operating discharge lamps |
| 12/26/2007 | CN200997718Y Triggering electronic ballast controlling system of fluorescent light in bus |
| 12/26/2007 | CN200997717Y Triple controller of burner |
| 12/26/2007 | CN200997716Y Driving module of electromagnetic inducting light |
| 12/26/2007 | CN200997715Y Push-pull outputting high-frequency electronic ballast |
| 12/26/2007 | CN200997714Y Controller of radiator with electricity-proof and energy-saving functions in bath |
| 12/26/2007 | CN200997713Y Electromagnetic inducting light |
| 12/26/2007 | CN200997712Y Automatic stabilized electronic ballast |
| 12/26/2007 | CN101095378A A method of and a monitoring arrangement for monitoring the mercury condensation in an arc tube |
| 12/26/2007 | CN101095377A Lighting assembly and method of operating a discharge lamp |
| 12/26/2007 | CN101095376A A method and an operation controller for operation of a mercury vapour discharge lamp in an image rendering system |
| 12/26/2007 | CN101095299A Transmitting device for free-space optical transmission |
| 12/26/2007 | CN101094555A Digital controlled light source drive device |
| 12/26/2007 | CN101094554A Method and ballast to start discharge lamp |
| 12/26/2007 | CN101094553A A soft switching circuit |
| 12/26/2007 | CN101094552A High performance electronic ballast for multiple luminous tubes |
| 12/26/2007 | CN101094551A Method of detecting BJT cut-off signals in electronic ballast and electronic ballast |
| 12/26/2007 | CN101094546A Hand held automatic light sensed large lamp |
| 12/26/2007 | CN101093316A Liquid crystal display backlight inverter |
| 12/26/2007 | CN100358002C Apparatus and method for dynamically adjusting discontinuous modal switch frequency value of liquid crystal display |
| 12/25/2007 | US7313006 Shoot-through prevention circuit for passive level-shifter |
| 12/25/2007 | US7312585 Remote control of electronic light ballast and other devices |
| 12/25/2007 | US7312584 Plasma-generation power-supply device |
| 12/25/2007 | US7312582 Electronic ballast |
| 12/20/2007 | US20070290629 Modular illumination system |
| 12/20/2007 | US20070290628 Touch screen having a uniform actuation force and a maximum active area |
| 12/20/2007 | US20070290627 Ballast circuit for gas discharge lamps |
| 12/20/2007 | US20070290626 Discharge lamp lighting apparatus |
| 12/20/2007 | US20070290625 Driver arrangement for led lamps |
| 12/19/2007 | EP1867217A1 Lighting unit |
| 12/19/2007 | EP1867216A1 Igniter circuit for an hid lamp |
| 12/19/2007 | EP1387765B1 Dual lamp system and method for its use for correction of tilt of optical storage media |
| 12/19/2007 | CN200994222Y Laser remote control lamp |
| 12/19/2007 | CN200994221Y Abnormal protection circuit for electronic ballast |
| 12/19/2007 | CN200994220Y Electronic ballast suitable for wide range voltage |
| 12/19/2007 | CN200994219Y Tube output control and protection circuit of electronic controller for high voltage gas discharge lamp |
| 12/19/2007 | CN200994218Y Capacitance reduced-voltage emergency lamp |
| 12/19/2007 | CN200994217Y Fluorescent lamp tube emergency lighting lamp |
| 12/19/2007 | CN200994216Y Environmental-protection road lamp reduced current energy-saving control device |
| 12/19/2007 | CN101091418A Transformer, illuminating apparatus using the same, and display apparatus using the same |
| 12/19/2007 | CN101091085A Compact self-ballasted fluorescent lamp and lighting apparatus |
| 12/19/2007 | CN101090595A Lamp drive device |
| 12/19/2007 | CN101090594A High frequency electronic ballast circuit of high pressure gas discharge lamp |
| 12/19/2007 | CN101090036A Balance transformer |
| 12/19/2007 | CN101090035A Pressure magnetic element and light source drive device using it |
| 12/19/2007 | CN101089703A Backlight assembly, liquid crystal display having the same and method thereof |