| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 11/25/2009 | CN101588075A Adaptive inductive power supply with communication ability |
| 11/25/2009 | CN101586790A Non-polar lamp |
| 11/25/2009 | CN101586752A Lamp assemblies, lamp systems, and methods of operating lamp systems |
| 11/25/2009 | CN100563402C Signal lamp flashing controlling method |
| 11/25/2009 | CN100563401C Driving circuit system for fluorescent lamp tube by pulse width regulating changing control |
| 11/25/2009 | CN100563089C Driving circuit of piezoelectric transformer |
| 11/25/2009 | CN100562970C Dielectric barrier discharge lamp and ultraviolet radiation apparatus |
| 11/25/2009 | CN100562912C Inverter, liquid crystal display device using said device and its lamp monitoring method |
| 11/24/2009 | US7622869 Discharge lamp ballast and projector |
| 11/23/2009 | CA2649420A1 Aggregate ignition method in high frequency metal halide lamps |
| 11/19/2009 | WO2009139875A1 Cfl auto shutoff for improper use condition |
| 11/19/2009 | WO2009138916A2 Method of driving a gas-discharge lamp |
| 11/19/2009 | WO2008133792A4 Solid state lighting apparatus |
| 11/19/2009 | US20090284183 CFL Auto Shutoff for Improper Use Condition |
| 11/19/2009 | US20090284180 Driving circuit for light emitting device with compensation mechanism and driving method thereof |
| 11/19/2009 | US20090284179 Apparatuses for Providing Power for Illumination of a Display Object |
| 11/19/2009 | US20090284178 Circuit Arrangement and Method for Voltage Conversion |
| 11/19/2009 | US20090284171 Led current controller and method therefor |
| 11/19/2009 | US20090284170 Circuitry for portable lighting devices and portable rechargeable electronic devices |
| 11/19/2009 | US20090284166 Electrodeless lamps and methods |
| 11/19/2009 | US20090284163 Method and apparatus for driving multiple parallel discharge lamps |
| 11/19/2009 | US20090284162 Method for driving a fluorescent lamp, and lamp ballast |
| 11/19/2009 | US20090284160 Current balancing circuit |
| 11/19/2009 | DE102009011208A1 Power line controller for electronic ballast of gas discharge lamp, in network transmission system, has output connections that connect transformer winding in series with alternating current power line |
| 11/19/2009 | DE102008023817A1 Anordnung zur UV-Bestrahlung von Objekten Arrangement for the UV irradiation of objects |
| 11/19/2009 | DE102008023603A1 Ballast for high pressure-discharge lamp in motor vehicle, has control producing control signals, which are output in succession with pause during operating phase, in which signals of one of transistors are controlled for interconnection |
| 11/19/2009 | DE102008023602A1 Ballast for high pressure gas discharge lamp in motor vehicle, has transformer with primary coil and secondary coil designed as wire winding, where halves of primary coil are made of conductor areas arranged on board layer |
| 11/19/2009 | DE102008023596A1 Ballast for operating alternating current-high pressure-gas discharge lamp in motor vehicle, has current pulse producing unit driving current pulse after lamp ignition and arranged parallel to series circuit of inductor and output |
| 11/18/2009 | EP2120513A1 Liquid crystal display device |
| 11/18/2009 | EP2119325A1 Method and device for driving a gas discharge lamp |
| 11/18/2009 | EP2119324A1 Method for determining a crest factor of a lamp current of an electric lamp |
| 11/18/2009 | EP2119323A1 Ignition transformer for a discharge lamp |
| 11/18/2009 | CN201349356Y Electronic ballast for energy-saving lamp |
| 11/18/2009 | CN201349355Y Control circuit of zero-voltage switch resonance inverter |
| 11/18/2009 | CN201349354Y Analogy and digital dimming backlight source drive device |
| 11/18/2009 | CN201349353Y Double-dimming backlight source drive device |
| 11/18/2009 | CN201349352Y 一种电子镇流器 An electronic ballast |
| 11/18/2009 | CN201349351Y Alternating current electronic ballast for HID |
| 11/18/2009 | CN201349350Y Dual-power supply electrodeless lamp control circuit |
| 11/18/2009 | CN201349349Y Starting circuit of high-pressure light source |
| 11/18/2009 | CN201349348Y 背光装置及其变压器 The backlight device and transformer |
| 11/18/2009 | CN201348986Y Electromagnetic induction lamp provided with auxiliary starting electric conduction belt |
| 11/18/2009 | CN201348981Y Time-sharing control mixed ceramic metal halide lamp electric arc tube and xenon metal halide lamp electric arc tube twin-core bulb |
| 11/18/2009 | CN201348202Y Energy-saving street lamp |
| 11/18/2009 | CN101584253A Discharge lamp operation device, illumination device, and liquid crystal display device |
| 11/18/2009 | CN101584252A Inductively-powered gas discharge lamp circuit |
| 11/18/2009 | CN101584251A Evaluation device for the ignition energy of a discharge lamp |
| 11/18/2009 | CN101584250A Circuit arrangement and method for adapting the output of high-pressure discharge lamps |
| 11/18/2009 | CN101583230A Drive control method of display strip lamps and drive control device thereof |
| 11/18/2009 | CN101583229A Multi-discharge lamp parallel driving circuit and driving method |
| 11/18/2009 | CN101583228A Lighting tube control system |
| 11/18/2009 | CN101583227A Power saving device of high intensity discharge lamp |
| 11/18/2009 | CN100562206C Frequency feedforward for constant light output in backlight inverters |
| 11/18/2009 | CN100562205C Electronic stabilizer and control method thereof |
| 11/18/2009 | CN100562204C Electronic stabilizer with wave crest factor correction |
| 11/18/2009 | CN100562203C Projector with external power source |
| 11/18/2009 | CN100561395C Timer structure and microcontroller and optical ballast possessing same |
| 11/18/2009 | CN100561311C Lamp combination body, back light source combination body and method for driving display device and lamp |
| 11/17/2009 | US7619904 Pulse signal drive circuit |
| 11/17/2009 | US7619539 Multiple-input electronic ballast with processor |
| 11/17/2009 | US7619394 Capacitor charger with a modulated current varying with an input voltage and method thereof |
| 11/17/2009 | US7619369 Method and circuit arrangement for operating a discharge lamp |
| 11/17/2009 | US7619367 Electronic ballast protection |
| 11/12/2009 | WO2009137183A2 Heat sink for integral hid reflector lamp |
| 11/12/2009 | WO2009136723A2 Distributed pulse width modulation control device and method |
| 11/12/2009 | WO2009099522A3 Methods and apparatus for dimming light sources |
| 11/12/2009 | WO2009084569A4 Electric discharge lamp lighting device, projector and method for controlling electric discharge lamp lighting device |
| 11/12/2009 | US20090278477 Method for controlling light-emission of a light-emitting diode light source |
| 11/12/2009 | US20090278472 Method and system for a network of wireless ballast-powered controllers |
| 11/12/2009 | US20090278469 Method of lighting high pressure mercury lamp, lighting device for the same, lamp system and projection display unit |
| 11/12/2009 | US20090278468 Device and Method for Operating a High-Pressure Discharge Lamp |
| 11/12/2009 | US20090278467 Dimmable electronic ballast for electrodeless discharge lamp and luminaire |
| 11/12/2009 | US20090278466 Fluorescent lamp driving circuit |
| 11/12/2009 | US20090278458 Outdoor lighting device |
| 11/12/2009 | CA2723356A1 Heat sink for integral hid reflector lamp |
| 11/11/2009 | EP2117284A1 Safety loop for a light fixture |
| 11/11/2009 | EP2117032A2 Assembly for UV-irradiation of objects |
| 11/11/2009 | EP2116111A1 High-voltage pulse generator and high-pressure discharge lamp comprising such a generator |
| 11/11/2009 | EP1397943B1 Electronic ballast |
| 11/11/2009 | CN201345774Y Intelligent light-adjusting electronic ballast of high-output fluorescent lamp |
| 11/11/2009 | CN201345773Y Variable-power metal halide lamp system |
| 11/11/2009 | CN201345772Y Novel electric energy-saving lamp circuit board |
| 11/11/2009 | CN201345771Y Casing of high-power electronic ballast connected through dovetail groove and provided with T-shaped strip |
| 11/11/2009 | CN201345770Y Casing of high-power electronic ballast connected through semi-circular groove with T-shaped grooves formed thereon |
| 11/11/2009 | CN201345352Y Electromagnetic radiation-shielding electrodeless lamp capable of being started with wide voltage range |
| 11/11/2009 | CN201344490Y Energy-saving conversion bracket of straight-tube fluorescent lamp |
| 11/11/2009 | CN201344441Y Power supply module of flash lamp |
| 11/11/2009 | CN201344440Y PAR4 metal halide single headlamp for inter-city express train and rail car |
| 11/11/2009 | CN101578925A Universal electronic ballast for operating hg-free and hg-containing discharge lamps |
| 11/11/2009 | CN101578924A Current balancing circuit |
| 11/11/2009 | CN101578923A Discharge lamp lighting device |
| 11/11/2009 | CN101578922A Ignition transformer for a discharge lamp |
| 11/11/2009 | CN101578921A Electromagnetic interference suppressing apparatus for high-frequency signal generation device |
| 11/11/2009 | CN101578005A Lamp driving circuit |
| 11/11/2009 | CN101577090A Drive module and drive method thereof |
| 11/11/2009 | CN100559911C High pressure discharge lighting device and projector device |
| 11/11/2009 | CN100559714C Drive state detection circuit |
| 11/11/2009 | CN100559072C Electronic apparatus and lighting device |
| 11/10/2009 | US7615971 Capacitor charging circuit, flash unit, and camera |
| 11/10/2009 | US7615937 High-pressure discharge lamp lighting device and lighting fixture |