| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 03/05/2009 | US20090058314 Device and Method for Operating a High-Pressure Discharge Lamp |
| 03/05/2009 | US20090058313 Power supply for supplying power to a lamp |
| 03/05/2009 | US20090058312 Energy efficient fluorescent lamp |
| 03/05/2009 | US20090058308 Apparatus and method for lighting dielectric barrier discharge lamp |
| 03/05/2009 | US20090058212 Electricity generator and an installation comprising a lighting tower powered by such a generator |
| 03/05/2009 | US20090058196 Circuit having emi and current leakage to ground control circuit |
| 03/05/2009 | DE10253245B4 Verfahren und Einrichtung zur Erzeugung einer Versorgungsspannung für Leuchtmittel Method and apparatus for generating a supply voltage for lamps |
| 03/05/2009 | DE102007040556A1 Method for igniting gas discharge lamp using integrated circuit, for use by electric power supply unit, involves feeding high-frequency alternating voltage to lamp only during ignition phase and positive-half cycle of main power supply |
| 03/04/2009 | EP2031942A2 Load control module |
| 03/04/2009 | EP2030488A2 Lamp driving circuit |
| 03/04/2009 | EP2030487A1 Method and system for operating a gas discharge lamp |
| 03/04/2009 | EP2030486A1 Lamp driving circuit |
| 03/04/2009 | EP2030484A1 Dimmable operating device with internal dimming calibration curve |
| 03/04/2009 | EP1762127B1 Gas discharge lamp driving method |
| 03/04/2009 | EP1736037A4 Pfc and ballast control ic |
| 03/04/2009 | CN201204740Y Gas discharging lamp electronic ballast |
| 03/04/2009 | CN201204739Y Electronic energy-saving ballast for high voltage sodium lamp |
| 03/04/2009 | CN201204738Y Electric ballast for HID lamp without electrolytic capacitor |
| 03/04/2009 | CN201204737Y Electronic energy-saving device for high-frequency phase-shifting type high-pressure sodium lamp |
| 03/04/2009 | CN201204736Y Electrodeless lamp power-supply circuit |
| 03/04/2009 | CN201204735Y Drive device for electric discharge lamp |
| 03/04/2009 | CN201204734Y Energy-saving electronic blast |
| 03/04/2009 | CN201204733Y Parallel connection addition igniting circuit for high-pressure discharge lamp electronic ballast |
| 03/04/2009 | CN201204732Y 激励源盒 Excitation source box |
| 03/04/2009 | CN201204723Y Three-phase lamplight intelligent power-saving device |
| 03/04/2009 | CN201204718Y Light-mixing type high intensity air discharge lamp |
| 03/04/2009 | CN101379891A Circuit arrangement and method of driving a high-pressure gas discharge lamp |
| 03/04/2009 | CN101379890A Light source module |
| 03/04/2009 | CN100466878C Igniter device for discharge lamp |
| 03/04/2009 | CN100466877C Light-emitting method and apparatus for high-pressure discharge lamp and high-pressure discharge lamp apparatus |
| 03/04/2009 | CN100466876C Intelligent detection controlling device for carrier of multi-power inductive ballast |
| 03/04/2009 | CN100466875C Discharge lamp lighting circuit |
| 03/04/2009 | CN100466439C Apparatus used for preventing capacitor charger from overcharging and the method thereof |
| 03/04/2009 | CN100466156C Device for driving backlighting components and a liquid crystal display device |
| 03/03/2009 | US7498751 High efficiency and low cost cold cathode fluorescent lamp driving apparatus for LCD backlight |
| 03/03/2009 | US7498750 Gas discharge lamp driving circuit and method with resonating sweep voltage |
| 03/03/2009 | US7498748 Method and apparatus for providing power in an electrical system |
| 03/03/2009 | US7498747 Plasma lamp with dielectric waveguide |
| 02/28/2009 | CA2635502A1 Metal halide lamp ballast controlled by remote enable switched bias supply |
| 02/26/2009 | WO2009025154A1 Ac power supply apparatus |
| 02/26/2009 | US20090051300 Method and driving unit for driving a gas discharge lamp |
| 02/26/2009 | US20090051298 Multiple discharge lamp lighting device |
| 02/26/2009 | US20090051297 Frequency modulation method and device for high intensity discharge lamp |
| 02/26/2009 | US20090051296 Led control method |
| 02/25/2009 | EP2028914A2 Flash lamp device |
| 02/25/2009 | CN201199750Y Adjustable photoelectron transformer for halogen lamp |
| 02/25/2009 | CN201199749Y Automatic matching circuit for compact energy-saving fluorescent lamp |
| 02/25/2009 | CN201199748Y Converter suitable for different liquid crystal display devices |
| 02/25/2009 | CN201199747Y Grading steady flow circuit for CCFL drive current |
| 02/25/2009 | CN201199746Y Cold cathode tube lamp with electric stabilizer |
| 02/25/2009 | CN201199745Y Novel lamp |
| 02/25/2009 | CN101375643A Voltage fed inverter for fluorescent lamps |
| 02/25/2009 | CN100464616C Digital electronic ballast of high pressure gas discharge lamp and digital control method therefor |
| 02/24/2009 | US7495671 Light system manager |
| 02/19/2009 | WO2009022804A2 Planar light-source pulse-type driving circuit adopting a transformer |
| 02/19/2009 | WO2009022445A1 In-car power signal input circuit |
| 02/19/2009 | US20090045758 Drive Circuit Supplying Current to Load Based on Control Signal, and Portable Information Terminal Including the Same |
| 02/19/2009 | US20090045757 Discharge lamp lighter |
| 02/19/2009 | US20090045756 Cold Cathode Tube Drive Device |
| 02/19/2009 | US20090045755 Driving circuit for piezoelectric lamps |
| 02/18/2009 | EP2026639A1 Switching assembly for adjusting the output level of gas discharge lamps |
| 02/18/2009 | EP2026638A2 Fluorescent tube power supply and backlight |
| 02/18/2009 | EP2026637A2 Programmed ballast with resonant inverter and method for discharge lamps |
| 02/18/2009 | EP2025208A1 High-pressure discharge lamp with an improved starting capability, as well as a high-voltage pulse generator |
| 02/18/2009 | EP2025207A1 High-pressure discharge lamp with an improved starting capability, as well as a high-voltage pulse generator |
| 02/18/2009 | EP2024989A2 High-pressure discharge lamp with an improved starting capability, as well as a high-voltage pulse generator |
| 02/18/2009 | EP1665905B8 Circuit arrangement and method of operating a gas discharge lamp |
| 02/18/2009 | CN201197218Y Multi-lamp back light device and its protection circuit |
| 02/18/2009 | CN201197217Y Frequency conversion electronic ballast of holographic numerical control high power cold cathode UV-lamp |
| 02/18/2009 | CN201197216Y Transformer and light tube driving device using the same |
| 02/18/2009 | CN201197215Y Current balancing apparatus and multi-light tube backlight module |
| 02/18/2009 | CN201197214Y Light tube driving device |
| 02/18/2009 | CN201196947Y Solar special non-polar lamp for low temperature application |
| 02/18/2009 | CN201196946Y General energy-saving non-polar lamp |
| 02/18/2009 | CN101371623A Backlight device, display, and television receiver |
| 02/18/2009 | CN101371622A A universal dimmer |
| 02/18/2009 | CN101371621A A protection device for electronic converters, related converter and method |
| 02/18/2009 | CN101371620A Discharge lamp lighting device and lighting fixture |
| 02/18/2009 | CN101370346A Intelligent electricity-saving optimal control system |
| 02/18/2009 | CN101370345A Digital control circuit of piezoelectric ceramic transformer |
| 02/18/2009 | CN101370344A Ballast of electronic resonance fluorescent lamp |
| 02/18/2009 | CN101370343A High-frequency power supply type trigger |
| 02/18/2009 | CN101370342A Novel illumination device |
| 02/18/2009 | CN101370341A Discharge tube lightening device |
| 02/18/2009 | CN101370340A Light tube death protection circuit and operating circuit including the same |
| 02/18/2009 | CN101369777A Power control circuit and electronic ballast with the same |
| 02/18/2009 | CN101369772A Circuit and method for implementing two operating status |
| 02/18/2009 | CN100463359C Current control circuit |
| 02/18/2009 | CN100463350C Controlling circuit of DC pulsating countercurrent device |
| 02/18/2009 | CN100462799C Backlight assembly, display device and driving apparatus of light source for display device |
| 02/17/2009 | US7492162 Inverter system |
| 02/17/2009 | US7492107 Device for driving light source module |
| 02/17/2009 | US7492105 Method of detecting an arc in a glow-discharge device and apparatus for controlling a high-frequency arc discharge |
| 02/17/2009 | US7492104 High pressure discharge lamp |
| 02/17/2009 | US7492103 Energy saving lamp with sensor |
| 02/17/2009 | CA2598233C Radio frequency identification system for a fluid treatment system |
| 02/12/2009 | WO2009020634A1 Ballasted lamp socket for a compact fluorescent lamp |
| 02/12/2009 | WO2009020006A1 Illuminating device |
| 02/12/2009 | WO2009019647A1 Control of ignition of a gas discharge lamp |
| 02/12/2009 | WO2009019624A2 Lamp driving circuit |