| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 06/30/2009 | US7554274 System and method for lighting control network recovery from master failure |
| 06/30/2009 | US7554272 Low noise electroluminescent lamp (EL) driver and method therefor |
| 06/30/2009 | US7554271 Single stage PFC and power converter circuit |
| 06/30/2009 | US7554254 Flat fluorescent lamp |
| 06/25/2009 | WO2009077951A1 Dimmable light generating device |
| 06/25/2009 | WO2009077911A1 Dimmable light generating device |
| 06/25/2009 | US20090161381 Light-emitting-diode lamp |
| 06/25/2009 | US20090160370 Alternating current light emitting device |
| 06/25/2009 | US20090160366 Method for Setting an Electronic Ballast |
| 06/25/2009 | US20090160360 Apparatus and method for controlling lighting brightness through pulse frequency modulation |
| 06/25/2009 | US20090160358 Controller and method for controlling an intensity of a light emitting diode (led) using a conventional ac dimmer |
| 06/25/2009 | US20090160357 Inverter, its drive method, light emitting device and liquid crystal television using the same |
| 06/25/2009 | US20090160356 Drive Circuit for a Switchable Heating Transformer of an Electronic Ballast and Corresponding Method |
| 06/25/2009 | US20090160355 Discharge Lamp Lighting Apparatus |
| 06/25/2009 | US20090160353 Multi-lamp backlight apparatus |
| 06/25/2009 | US20090160352 Discharge tube lighting apparatus |
| 06/25/2009 | US20090160351 Electric discharge light-regulation matching circuit |
| 06/25/2009 | US20090160350 Balance transformer and backlight apparatus |
| 06/25/2009 | US20090160349 Electronic stabilizer circuit for suppressing startup instabilities in cold cathode fluorescent lamps |
| 06/25/2009 | US20090160348 Discharge lamp lighting device and projector |
| 06/25/2009 | US20090160347 Anti-striation circuit for current-fed ballast |
| 06/25/2009 | US20090160345 Uv lamp system and associated method with improved magnetron control |
| 06/25/2009 | US20090159677 Contactless power and data transfer system and method |
| 06/25/2009 | DE102008060512A1 Elektronische Stabilisierungsschaltung zur Unterdrückung von Anlaufinstabilitäten bei Kaltkathoden-Fluoreszenzlampen Electronic stabilization circuit for suppressing instabilities starting at cold cathode fluorescent lamps |
| 06/25/2009 | DE102008058819A1 Entladungslampenzündvorrichtung Entladungslampenzündvorrichtung |
| 06/24/2009 | EP2073610A2 Electric discharge light-regulation matching circuit |
| 06/24/2009 | EP2073609A2 Circuit arrangement for operating a gas discharge lamp, ballast, and method thereof |
| 06/24/2009 | EP1927273B1 Method for operating a high-intensity discharge lamp, lamp driver and projection system |
| 06/24/2009 | EP1872634B1 Electronic reactive current oscillation-reducing ballast |
| 06/24/2009 | CN201263245Y 镇流器 Ballast |
| 06/24/2009 | CN201263244Y Current changer |
| 06/24/2009 | CN201263243Y HID electric ballast with communication port |
| 06/24/2009 | CN201263242Y Circuit device |
| 06/24/2009 | CN201263241Y Sun lamp electronic ballast |
| 06/24/2009 | CN201263240Y Control loop for ultraviolet lamp of washing machine |
| 06/24/2009 | CN201263239Y Fluorescent lamp device |
| 06/24/2009 | CN201263238Y Multi-lamp tube backlight device |
| 06/24/2009 | CN101467497A Method and device for driving a lamp |
| 06/24/2009 | CN101467496A High-pressure discharge lamp with an improved starting capability, as well as a high-voltage pulse generator |
| 06/24/2009 | CN101467495A High-pressure discharge lamp with an improved starting capability, as well as a high-voltage pulse generator |
| 06/24/2009 | CN101466193A Method for monitoring lighting lamp power factor compensation capacitance fault |
| 06/24/2009 | CN101466192A Control method for digital high voltage sodium lamp electronic ballast |
| 06/24/2009 | CN101466191A High-frequency electronic frequency changer of high-power parallel connection selfexciting electrodeless florescent lamp |
| 06/24/2009 | CN101466190A Stepless adjustable reactor for illumination electricity-saving |
| 06/24/2009 | CN100505973C Running device and running method for high-tension discharge lamp |
| 06/24/2009 | CN100505144C Light source device, lighting device and liquid crystal display device |
| 06/24/2009 | CN100505019C Cold cathode fluorescent tube type illumination device and its driving method and LCD having the same |
| 06/24/2009 | CN100504674C Control system and illumination control system |
| 06/24/2009 | CN100504528C Inverter of LCD display |
| 06/23/2009 | US7551101 Light emitting device drive controller, and a light emitting device driving apparatus |
| 06/23/2009 | US7550929 Power system and method for driving plural lamps |
| 06/23/2009 | US7550928 Driving circuit for multiple cold cathode fluorescent lamps backlight applications |
| 06/20/2009 | CA2645787A1 Anti-striation circuit for current-fed ballast |
| 06/18/2009 | WO2009075940A1 High frequency high intensity discharge ballast |
| 06/18/2009 | US20090153806 Light source device, projector, and driving method of discharge lamp |
| 06/18/2009 | US20090153076 Driving circuit and method for reducing operating temperature of led package |
| 06/18/2009 | US20090153075 Color control method for led lighting systems |
| 06/18/2009 | US20090153074 Lamp and driving device for backlight assembly having the same |
| 06/18/2009 | US20090153073 Light source device, projector, and driving method of discharge lamp |
| 06/18/2009 | US20090153072 Inverter Circuit |
| 06/18/2009 | US20090153071 Ignition circuit for igniting a discharge lamp and method for igniting the discharge Lamp |
| 06/18/2009 | US20090153070 High-Pressure Discharge Lamp with an Improved Starting Capability, as Well as a high-voltage pulse generator |
| 06/18/2009 | US20090153069 Module for parallel lighting and balancer coil for discharge lamp |
| 06/18/2009 | US20090153068 Backlight assembly, display apparatus having the backlight assembly, and method thereof |
| 06/18/2009 | DE102007060775A1 Schaltungsanordnung für das Betreiben einer Gasentladungslampe, Vorschaltgerät, sowie entsprechenes Verfahren Circuit arrangement for operating a gas discharge lamp, ballast, and entsprechenes method |
| 06/18/2009 | DE102007059471A1 Headlamp i.e. H4 retrofit lamp, for use as e.g. gas-discharge lamp, in motor vehicle, has lamp base and light emission predefined by international standards with respect to distance and position in relation to reference plane of base |
| 06/17/2009 | EP2071905A1 Light source device, projector and driving method of discharge lamp |
| 06/17/2009 | EP2071904A1 Light source device, projector and driving method of discharge lamp |
| 06/17/2009 | EP2071903A1 Backlight inverter and method of driving same |
| 06/17/2009 | EP2070396A2 Power controller having current limited rms voltage regulated output |
| 06/17/2009 | EP2000009B1 Device for removing and fitting starters for fluorescent lamps |
| 06/17/2009 | EP1920644B1 Electronic ballast for discharge lamps comprising an end-of-life monitoring circuit |
| 06/17/2009 | EP1872630B1 Intelligent flyback-heating |
| 06/17/2009 | CN201260265Y Electronic ballast circuit for light modulation type fluorescent lamp |
| 06/17/2009 | CN201260264Y Electronic ballast for straight pipe fluorescent lamp |
| 06/17/2009 | CN201260263Y Multi-lamp tube driver |
| 06/17/2009 | CN201260262Y Timing power tunable sodium lamp inductor ballast |
| 06/17/2009 | CN201260261Y Energy saving lamp having inductor ballast |
| 06/17/2009 | CN101461290A Method and system for operating a gas discharge lamp |
| 06/17/2009 | CN101461289A Method and system for operating a gas discharge lamp |
| 06/17/2009 | CN101461288A Lamp driving circuit |
| 06/17/2009 | CN101459999A Light source device, projector and driving method of discharge lamp |
| 06/17/2009 | CN101459998A Backlight unit having protection circuit using center-tap |
| 06/17/2009 | CN100502612C Electronic transformer for low-pressure lamp |
| 06/17/2009 | CN100502219C Multiplexed high voltage DC-AC driver, transformer and voltage conversion method |
| 06/16/2009 | US7548271 Flash device, camera device and method and program thereof for the elimination of wasteful power consumption therein |
| 06/16/2009 | US7548031 Lighting apparatus for discharge lamp |
| 06/16/2009 | US7548028 Current-mode resonant inverter circuit |
| 06/11/2009 | WO2009072051A1 Method of driving a gas-discharge lamp |
| 06/11/2009 | WO2002074014A3 Fluorescent lamp ballast with integrated circuit |
| 06/11/2009 | US20090146942 Backlight apparatus, method of controlling the same and liquid crystal display apparatus having the same |
| 06/11/2009 | US20090146586 Power supply for external electrode fluorescent lamps |
| 06/11/2009 | US20090146583 Portable handheld illumination system |
| 06/11/2009 | US20090146582 Colour rendering in compact fluorescent lamps |
| 06/11/2009 | US20090146580 High intensity discharge lamp driver with voltage feedback controller |
| 06/11/2009 | US20090146579 Discharge-lamp lighting device and luminaire |
| 06/11/2009 | US20090146578 Lamp-Lighting Apparatus |
| 06/11/2009 | US20090146577 Transformer, illuminating apparatus using the same, and display apparatus using the same |
| 06/11/2009 | US20090146576 Metal halide lamp including a source of available oxygen |
| 06/11/2009 | US20090146575 Light Emitting Diode (LED) Driving Device |