| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 08/04/2005 | US20050168172 Backlight inverter system and control method for starting the same |
| 08/04/2005 | US20050168171 Method for controlling striations in a lamp powered by an electronic ballast |
| 08/04/2005 | US20050168170 Circuit arrangement |
| 08/04/2005 | US20050168167 Lossless circuit for sampling of lamp voltage |
| 08/04/2005 | US20050168166 Electronic ballast with lossless snubber capacitor circuit |
| 08/04/2005 | US20050168165 Electronic ballast with open circuit voltage control and cable compensation |
| 08/04/2005 | US20050168164 High efficiency 4-lamp instant start ballast |
| 08/04/2005 | US20050168161 Control circuit of electronic ballast for fluorescent lamp |
| 08/04/2005 | US20050168160 Protection device for a chopping supply and a vehicle lighting device |
| 08/04/2005 | US20050168158 Flash lamp drive circuit |
| 08/04/2005 | US20050168157 Half-bridge inverter for asymmetrical loads |
| 08/04/2005 | US20050168154 Method and apparatus for dimming control of electronic ballasts |
| 08/04/2005 | US20050168149 Flash lamp with high irradiance |
| 08/04/2005 | DE19757295B4 Elektronisches Vorschaltgerät Electronic ballast |
| 08/04/2005 | DE10357537A1 Circuit for generating an auxiliary voltage such as for use in a pre-switch for high pressure discharge lamps with a regulator connecting a control input with a bootstrap capacitor |
| 08/04/2005 | DE102004002027A1 Zentraler PFC mit DC-Ausgangskreisregelung Central PFC DC output circuit control |
| 08/04/2005 | DE102004002026A1 Ansteuerung von Leuchtmittel-Betriebsgeräten über einen modulierten DC-Bus Control of Lamp operating devices via a modulated DC bus |
| 08/04/2005 | DE102004002018A1 DC-versorgte Betriebsmittel-Module für Leuchtmittel DC-powered equipment modules for bulbs |
| 08/04/2005 | DE102004002017A1 Steuerung von Betriebsgeräten für Leuchtmittel mittels Schaltmodulation eines DC-Busses Control of operating devices for lamps by switching modulation of a DC bus |
| 08/04/2005 | DE102004002016A1 Zentrale Versorgung über mehrere DC-Ausgangskreise Central supply across multiple DC output circuits |
| 08/04/2005 | CA2549027A1 Supply device for ultraviolet lamps used in the treatment of water |
| 08/03/2005 | EP1560474A2 Protection circuit for a switched mode power suplly and lighting device for a vehicle |
| 08/03/2005 | EP1560473A2 Method and apparatus for operating high pressure lamps in the longitudinal resonant mode |
| 08/03/2005 | EP1560472A2 Method for operating high pressure lamps in the longitudinal resonance mode, associated system and electronic ballast |
| 08/03/2005 | EP1560471A2 High-pressure discharge lamp operation with reversed DC current |
| 08/03/2005 | EP1559300A2 Control system for light tubes |
| 08/03/2005 | CN2715465Y High light emergency light |
| 08/03/2005 | CN2715310Y Transformer and multi-tube driving system using the same |
| 08/03/2005 | CN2714955Y Lighting device with color-adjustable light source |
| 08/03/2005 | CN1650675A Dimmer circuit with improved inductive load imbalance protection |
| 08/03/2005 | CN1650674A Improved dimmer circuit arrangement |
| 08/03/2005 | CN1650242A Dimmer circuit with improved ripple control |
| 08/03/2005 | CN1649466A Display device and device for driving light source |
| 08/03/2005 | CN1649465A Simplified topology for hid lamps |
| 08/03/2005 | CN1649464A State detection device |
| 08/03/2005 | CN1649462A Lighting mode indicator and indicating method |
| 08/02/2005 | US6924606 Low-visual noise, jitterized pulse width modulation brightness control circuit |
| 08/02/2005 | US6924604 Method of operating a discharge lamp system and a discharge lamp system using a combination radial and longitudinal acoustic mode to reduce vertical segregation |
| 08/02/2005 | CA2220571C Discharge lamp and device for operating it |
| 07/30/2005 | CA2493842A1 Operating method, electronic ballast and system for resonant operation of high-pressure lamps in the longitudinal mode |
| 07/30/2005 | CA2493494A1 Operating method for the resonant operation of high-pressure lamps in longitudinal mode, and an associated system and electronic ballast |
| 07/29/2005 | CA2489663A1 Method for controlling striations in a lamp powered by an electronic ballast |
| 07/28/2005 | WO2004091259A3 Multi-phase gas discharge lamps |
| 07/28/2005 | US20050162858 Lighting device for vehicle |
| 07/28/2005 | US20050162103 Method and device for driving a gas discharge lamp |
| 07/28/2005 | US20050162098 Current-mode direct-drive inverter |
| 07/28/2005 | US20050162081 Organic electroluminescent display device |
| 07/28/2005 | DE10361908A1 Pulse electric current generating apparatus used in microchip manufacture, has capacitor bank comprised of two capacitors, for producing high voltage for discharge |
| 07/28/2005 | DE102004062529A1 Liquid crystal display device driving method for e.g. cellular phone, involves retrieving brightness histograms for two frames to generate average histogram, and generating modulated brightness components based on histogram |
| 07/27/2005 | EP1558064A1 High-pressure discharge lamp operation device and illumination appliance having the same |
| 07/27/2005 | CN2713775Y Inductance ballast with double tubes in series connection |
| 07/27/2005 | CN2713774Y Novel searchlight |
| 07/27/2005 | CN2713773Y Double frequency electronic synchronizer trigger |
| 07/27/2005 | CN2712352Y 185 nano wave disinfector |
| 07/27/2005 | CN1646852A Condition responsive lighting fixture for construction junction box |
| 07/27/2005 | CN1645984A DC inverting electronic ballast (below 25W) |
| 07/27/2005 | CN1645983A DC inverting electronic ballast |
| 07/27/2005 | CN1645982A Safety effective light on machine tool |
| 07/27/2005 | CN1645981A Energy-saving switch for flexible start |
| 07/27/2005 | CN1645980A Method and apparatus for a voltage controlled start-up circuit for an electronic ballast |
| 07/27/2005 | CN1645555A Metal halide lamp and lighting apparatus using the same |
| 07/26/2005 | US6922528 Light emission control system for a flash device |
| 07/26/2005 | US6922114 Operating method and system for the resonant operation of high-pressure lamps in longitudinal mode |
| 07/26/2005 | US6922023 Multiple-lamp backlight inverter |
| 07/26/2005 | US6922021 Microwave energized plasma lamp with solid dielectric waveguide |
| 07/26/2005 | US6922016 Lamp assembly for liquid crystal display device |
| 07/26/2005 | CA2315107C Microprocessor controlled electronic ballast |
| 07/21/2005 | WO2005067353A1 Dielectric barrier discharge tube drive circuit |
| 07/21/2005 | WO2005067002A1 Electrodeless fluorescent lamp and its operating device |
| 07/21/2005 | US20050156542 Lighting apparatus formed by serially-Driven lighting units |
| 07/21/2005 | US20050156541 Multiple discharge load electronic ballast system |
| 07/21/2005 | US20050156540 Inverter with two switching stages for driving lamp |
| 07/21/2005 | US20050156539 Lamp current control using profile synthesizer |
| 07/21/2005 | US20050156537 Flicker detecting system for detecting lamp life differing from lamp to lamp |
| 07/21/2005 | US20050156536 Method and apparatus to drive LED arrays using time sharing technique |
| 07/21/2005 | US20050156535 Lighting control system with variable arc control including start-up circuit for providing a bias voltage supply |
| 07/21/2005 | US20050156534 Full digital dimming ballast for a fluorescent lamp |
| 07/21/2005 | US20050156532 Planar light source device, method of driving the same and display apparatus having the same |
| 07/21/2005 | US20050156528 Metal halide lamp and lighting apparatus using the same |
| 07/21/2005 | DE202005005791U1 Schaltung zum Betreiben von Miniatur Kurzbogenlampen mit Wechselstrom Circuit for operating miniature arc lamps with AC |
| 07/21/2005 | DE19859253B4 Schaltungsanordnung zum Betreiben einer Gasentladungslampe Circuit arrangement for operating a gas discharge lamp |
| 07/21/2005 | DE102004030556A1 Verfahren und Vorrichtung zum Treiben einer Flüssigkristallanzeige Method and device for driving a liquid crystal display |
| 07/21/2005 | DE10147679B4 Verfahren zur Herstellung eines Kondensators A method for manufacturing a capacitor |
| 07/20/2005 | EP1555861A1 Control of lighting apparatusses through switching modulation on a DC-bus |
| 07/20/2005 | EP1555860A1 DC-fed driving modules for light sources |
| 07/20/2005 | EP1555859A1 Control of lighting devices over a modulated DC bus |
| 07/20/2005 | EP1555858A2 Central power supply for lamp operation devices containing a central PFC/rectification device |
| 07/20/2005 | EP1555857A1 Central power supply having several DC output circuits |
| 07/20/2005 | EP1554891A1 Image projector with intensity-controlled light source |
| 07/20/2005 | CN2712044Y Electronic ballast for fluorescent |
| 07/20/2005 | CN2712043Y Electric arc switching circuit and spark free high voltage resisting relay |
| 07/20/2005 | CN2712042Y Ignition electric system structure for compact energy saving type high strength gas charge lamp |
| 07/20/2005 | CN2712041Y Intelligent electronic ballast |
| 07/20/2005 | CN1643996A Circuit and method of igniting a high-pressure lamp |
| 07/20/2005 | CN1643990A Driver circuit for an electroluminescent lamp |
| 07/20/2005 | CN1642381A Anormal-state protection apparatus of self-recovering electronic ballast |
| 07/20/2005 | CN1642380A Electronic ballast and method for selecting its working frequency |
| 07/20/2005 | CN1642379A Circuit device for poleless discharge lamp |
| 07/19/2005 | US6919697 Power supply device and liquid crystal display device using the same |
| 07/19/2005 | US6919696 Device for operating a high-pressure discharge lamp |