| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 09/03/2008 | EP1965610A1 Transformer apparatus, inverter transformer, and drive circuit |
| 09/03/2008 | EP1964453A1 Dimming ballast and method |
| 09/03/2008 | EP1964452A2 System and method for synchronizing lights powered by wild frequency ac |
| 09/03/2008 | EP1776848B1 Method and circuit arrangement for operating a discharge lamp |
| 09/03/2008 | EP1728413B1 Lamp driver using solar cells |
| 09/03/2008 | EP1671522A4 Dimming control techniques using self-excited gate circuits |
| 09/03/2008 | EP1500310A4 Dimmer circuit with improved inductive load imbalance protection |
| 09/03/2008 | CN201111341Y Lamp cap integrated electric ballast for PL lamp tube |
| 09/03/2008 | CN101258782A Discharge lamp drive control circuit |
| 09/03/2008 | CN101257765A Stepless light modulation fluorescent lamp and ballast thereof |
| 09/03/2008 | CN101257764A Method for enhancing fluorescent illumination efficiency and energy conservation effect |
| 09/03/2008 | CN101257763A Control circuit for starting and closing vehicle lamp |
| 09/03/2008 | CN101257762A Digital intelligent electric ballast of high power ultraviolet lamp tube |
| 09/03/2008 | CN101257761A Ballast control with power factor correction |
| 09/03/2008 | CN101257760A Multi-discharge tube lighting apparatus |
| 09/03/2008 | CN101257759A High-frequency electronic ballast triggering circuit and testing circuit |
| 09/03/2008 | CN101257758A High-pressure gas discharge lamp electronic ballast |
| 09/03/2008 | CN101255958A Intelligentizing polyphyly energy-saving lighting lamp |
| 09/03/2008 | CN101254964A Ultraviolet irradiation system and water quality monitoring instrument |
| 09/03/2008 | CN100416440C Ballast control with power factor correction |
| 09/02/2008 | US7420338 Ballast control IC with minimal internal and external components |
| 09/02/2008 | CA2623767A1 Stepless dimming fluorescent lamp and ballast thereof |
| 09/02/2008 | CA2276913C Electronic ballast with inrush current limiting |
| 08/28/2008 | WO2008102703A1 Discharge lamp operation device, illumination device, and liquid crystal display device |
| 08/28/2008 | WO2008101836A1 Universal electronic ballast for operating hg-free and hg-containing discharge lamps |
| 08/28/2008 | WO2008101764A1 Charge pump electronic ballast for use with low input voltage |
| 08/28/2008 | WO2008070519A3 Systems and methods for thermal management of lamps and luminaires using led sources |
| 08/28/2008 | WO2008040454A3 Operating device and method for operating luminous means |
| 08/28/2008 | US20080205104 Digital power controller |
| 08/28/2008 | US20080204398 Method for driving lamps, driving circuit for performing the same and liquid crystal display device having the same |
| 08/28/2008 | US20080203945 Describing Two Led Colors as a Single, Lumped Led Color |
| 08/28/2008 | US20080203943 Lighting Device |
| 08/28/2008 | US20080203942 Current Driver Circuit and Method of Operation Therefor |
| 08/28/2008 | US20080203939 Method and Arrangement for Monitoring a Gas Discharge Lamp |
| 08/28/2008 | US20080203938 Block Dimming for Hid Lamps |
| 08/28/2008 | US20080203937 Method and a Circuit Arrangement for Operating a High Intensity Discharge Lamp |
| 08/28/2008 | US20080203936 Led drive circuit and led light-emitting device |
| 08/28/2008 | US20080203934 Method and Circuit for Enabling Dimming Using Triac Dimmer |
| 08/28/2008 | US20080203929 Light generating device, display apparatus having the same and method of driving the same |
| 08/28/2008 | US20080203926 Load driving circuit, driver IC having a load driving circuit, and plasma display panel having a driver IC |
| 08/28/2008 | DE102007009520A1 Interface for sending of digital signals of operating device for light medium connected by bus line, has input-connection for selectively receiving of mains alternating voltage or digital low-voltage signal |
| 08/28/2008 | DE102007008395A1 Vorschaltgerät mit Leistungsumschaltung Ballast with power switch |
| 08/27/2008 | EP1962565A1 Ballast with power commutation |
| 08/27/2008 | EP1961278A1 A universal dimmer |
| 08/27/2008 | EP1961277A1 Circuit arrangement and method for the operation of at least one first and a second lamp |
| 08/27/2008 | EP1961276A1 Circuit arrangement and method for the operation of high-pressure gas discharge lamps |
| 08/27/2008 | EP1961275A1 Circuit arrangement and method for the operation of high-pressure gas discharge lamps |
| 08/27/2008 | EP1961274A1 Circuit arrangement and method for the operation of a high-pressure gas discharge lamp |
| 08/27/2008 | EP1961273A1 Apparatus and method for controlling the filament voltage in an electronic dimming ballast |
| 08/27/2008 | EP1961271A1 Current zero crossing detector in a dimmer circuit |
| 08/27/2008 | EP1763975B1 High-frequency and high-voltage supply unit with retroactive control |
| 08/27/2008 | EP1665905B1 Circuit arrangement and method of operating a gas discharge lamp |
| 08/27/2008 | EP1652411B1 Electric power supply for at least two electrodes |
| 08/27/2008 | CN201107870Y Halogen tungsten sending light voltage generator controlled silicon control device |
| 08/27/2008 | CN201107869Y Machine tool working lamp |
| 08/27/2008 | CN201106785Y Environment protection type computer intelligent controlled high-power energy-saving road lamp |
| 08/27/2008 | CN201106784Y Machine tool energy-saving lamp |
| 08/27/2008 | CN201106783Y Machine tool energy-saving lamp |
| 08/27/2008 | CN101253819A Electronic ballast for discharge lamps comprising an end-of-life monitoring circuit |
| 08/27/2008 | CN101253818A Ballast for a discharge lamp with adaptive preheating |
| 08/27/2008 | CN101253817A Ballast for a discharge lamp with adaptive preheating |
| 08/27/2008 | CN101253816A Method for operation of high-pressure lamps without hot-starting and lights with two high pressure discharge lamps |
| 08/27/2008 | CN101253815A Starter circuit with hf damping element |
| 08/27/2008 | CN101252803A Display and backlight module thereof |
| 08/27/2008 | CN101252802A Charge pump electric ballast for low input voltage |
| 08/27/2008 | CN100414943C Method and system for assigning and binding network address of ballast |
| 08/26/2008 | US7417616 Inverter for liquid crystal display |
| 08/26/2008 | US7417383 Apparatus and method of driving lamp of liquid crystal display device |
| 08/26/2008 | US7417382 High-efficiency adaptive DC/AC converter |
| 08/26/2008 | US7417377 Blended light lamp |
| 08/26/2008 | US7416314 Discharge lamp lighting device and illuminator |
| 08/21/2008 | WO2008099329A1 Apparatus for driving a gas discharge lamp |
| 08/21/2008 | WO2008098881A1 Ignition transformer for a discharge lamp |
| 08/21/2008 | WO2008078253A3 Device for controlling light sources |
| 08/21/2008 | US20080198337 Discharge lamp control device and projector |
| 08/21/2008 | US20080198183 Inverter for liquid crystal display |
| 08/21/2008 | US20080197787 Sinusoidal discharge for EL lamp |
| 08/21/2008 | DE102007008148A1 Universal-EVG zum Betrieb Hg-freier und Hg-haltiger D-Lampen Universal ECG for operation Hg-free and mercury-containing lamps D |
| 08/20/2008 | EP1958488A1 Method for the detection of a fault during the operation of high-pressure discharge lamps on ballasts |
| 08/20/2008 | EP1958487A1 System and method for operating a gas discharge lamp and method of use thereof |
| 08/20/2008 | CN201104369Y Sun shape natural light health-care desk lamp |
| 08/20/2008 | CN201103816Y Light intensity-adjustable intelligent energy-saving desk lamp |
| 08/20/2008 | CN101247695A Filament open-circuit protector for constant-current light modulation system of air station navigation light |
| 08/20/2008 | CN101247694A High pressure discharge lamp lighting apparatus and luminaire |
| 08/20/2008 | CN101247693A Electric ballast for multi-tube fluorescent lamp |
| 08/20/2008 | CN101247692A HID electric ballast data processing method for cars |
| 08/20/2008 | CN101247691A Air discharge lamp driving mechanism and method thereof |
| 08/20/2008 | CN101247690A Vehicle xenon headlight fixer |
| 08/20/2008 | CN101246806A Integrated spiral non-polar fluorescent lamp |
| 08/20/2008 | CN100412645C Lighting device using series connecting mode to drive multiple light emitting units |
| 08/19/2008 | US7414822 Current control circuit |
| 08/19/2008 | US7414609 Method of driving lamp and driving circuit therefor |
| 08/14/2008 | WO2008096306A1 Method and device for driving a gas discharge lamp |
| 08/14/2008 | WO2008095343A1 A sleeve-shaped daylight lamp |
| 08/14/2008 | WO2008072158A3 Method for operating a gas discharge lamp and a gas discharge lamp driver system |
| 08/14/2008 | WO2008072146A3 Lamp driver for operating a gas discharge lamp |
| 08/14/2008 | WO2008068673A3 Flashlight with adjustable light output |
| 08/14/2008 | US20080192508 Method of Lighting a Cabinet or Display Case and Lighting Assembly Therefore |
| 08/14/2008 | US20080192211 Discharge lamp control device and projector |
| 08/14/2008 | US20080192210 Light source device and projector |