| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 11/12/2008 | CN100433946C Intellective economizer for street lamp |
| 11/12/2008 | CN100432882C Lamp driving topology |
| 11/11/2008 | US7449845 Backlight assembly and display apparatus having the same |
| 11/11/2008 | US7449844 Digital power controller for gas discharge devices and the like |
| 11/11/2008 | US7449843 Transformer for driving multi-lamp and backlight module thereof |
| 11/11/2008 | US7449842 Discharge tube drive circuit |
| 11/11/2008 | US7449841 Charge limited high voltage switch circuits |
| 11/11/2008 | US7449838 Backlight device and display unit provided with it |
| 11/11/2008 | US7449777 Circuit arrangement comprising a power component and a drive circuit integrated in two semiconductor bodies |
| 11/11/2008 | CA2622855A1 Program start ballast |
| 11/11/2008 | CA2621753A1 Ballast with filament heating and ignition control |
| 11/11/2008 | CA2620605A1 Ballast with ignition voltage control |
| 11/06/2008 | WO2008133792A2 Solid state lighting apparatus |
| 11/06/2008 | WO2008133409A1 Feedback driving system and driving method for maintaining glow discharge of a flat backlight |
| 11/06/2008 | WO2008133143A1 Illumination lamp ignition device and lighting device |
| 11/06/2008 | WO2008133024A1 Discharge tube driving device |
| 11/06/2008 | WO2008132915A1 Backlight device and liquid crystal display device |
| 11/06/2008 | WO2008132646A2 Driver apparatus for a gas discharge lamp |
| 11/06/2008 | WO2008131795A1 Illumination device having inrush current limiting circuit |
| 11/06/2008 | WO2008096133A3 An electrical supply system |
| 11/06/2008 | WO2008021516A3 Ballast housing for electronic hid luminaire |
| 11/06/2008 | US20080276154 Lighting control protocol |
| 11/06/2008 | US20080273331 Led Lighting Fixtures |
| 11/06/2008 | US20080272713 Driving Circuit of Organic Light Emitting Diode Display Panel and Discharging Method Using the Same |
| 11/06/2008 | US20080272712 Variable Color Light Emitting Device and Method for Controlling the Same |
| 11/06/2008 | US20080272711 Apparatus and Method for Eliminating Electric Arc |
| 11/06/2008 | US20080272709 Three-way dimming ballast circuit |
| 11/06/2008 | US20080272707 Lamp ballast circuit |
| 11/06/2008 | US20080272705 Light emitting diode lamp assembly having a voltage-regulating capability |
| 11/06/2008 | US20080272701 Method for driving a light source and backlight assembly employing the same |
| 11/06/2008 | US20080272690 Organic El Display And Full Color Device |
| 11/06/2008 | DE102007021205A1 Ansteuerung für die Schalter einer H-Brückenschaltung zum Betreiben einer Hochdruck-Gasentladungslampe in Kraftfahrzeugen Control for the switch of an H-bridge circuit for operating a high-pressure gas discharge lamp in motor vehicles |
| 11/06/2008 | CA2684882A1 A lamp ballast and an illumination apparatus |
| 11/06/2008 | CA2683645A1 Solid state lighting apparatus |
| 11/05/2008 | EP1988756A2 Ballast with socket-to-fixture voltage limiting |
| 11/05/2008 | EP1988755A2 Separately-excited inverter circuit and liquid crystal television |
| 11/05/2008 | EP1988754A2 Separately excited inverter circuit and liquid crystal display television |
| 11/05/2008 | EP1988753A2 Liquid crystal display apparatus and liquid crystal television |
| 11/05/2008 | EP1987705A1 Voltage fed inverter for fluorescent lamps |
| 11/05/2008 | EP1987704A1 Step-up driver with minimal switching frequency |
| 11/05/2008 | EP1987703A1 Light source module |
| 11/05/2008 | EP1987701A1 Lighting device with controllable light intensity |
| 11/05/2008 | EP1590992B1 Circuit and method for driving a load, in particular a high-intensity discharge lamp, and a control unit for said circuit |
| 11/05/2008 | CN201146628Y Energy-saving high light-effect oscillatory circuit |
| 11/05/2008 | CN201146627Y Electric ballast without electrochemical capacitor |
| 11/05/2008 | CN201146470Y Current changer regulating voltage in preceding stage |
| 11/05/2008 | CN201146173Y Nanometer ceramic electrode fluorescent lamp |
| 11/05/2008 | CN201146172Y Civil integration low power short-arc xenon-gas lighting lamp |
| 11/05/2008 | CN201145250Y Generator of high-frequency electrode free lamp |
| 11/05/2008 | CN101300907A Configurable ballast |
| 11/05/2008 | CN101300906A Drive circuit for a switchable heating transformer of an electronic ballast and corresponding method |
| 11/05/2008 | CN101300905A Apparatus for operating at least one discharge lamp |
| 11/05/2008 | CN101300904A Method and device for illuminating high pressure fluorescent mercury lamp, lamp system and projection type display device |
| 11/05/2008 | CN101300903A Light sources device and projector having the same |
| 11/05/2008 | CN101299897A Backlight unit driving apparatus and method thereof |
| 11/05/2008 | CN101298902A Portable near infrared light source apparatus |
| 11/05/2008 | CN100431393C Method and apparatus for determining power frequencies that cause arc instabilites in discharge lamps |
| 11/05/2008 | CN100431392C Discharge lamp lighting device |
| 11/04/2008 | US7446750 Inverter and liquid crystal display including inverter |
| 11/04/2008 | US7446489 Apparatus and method of driving light source for display device |
| 11/04/2008 | US7446485 Multi-lamp driving system |
| 11/04/2008 | US7446484 Middle output electrodeless lighting system |
| 11/04/2008 | US7446483 Backlight light source drive device |
| 11/04/2008 | US7445353 Distributed lighting system |
| 11/04/2008 | CA2345684C Discharge lamp for dielectrically impeded discharges, having an improved electrode configuration |
| 10/30/2008 | WO2008130138A1 Inverter circuit and lamp control apparatus having the same |
| 10/30/2008 | WO2008129714A1 High-frequency boosting transformer for fluorescent tube |
| 10/30/2008 | WO2008129325A1 Drive circuit for a discharge tube and a method of driving a discharge tube |
| 10/30/2008 | WO2008129314A1 Control apparatus |
| 10/30/2008 | WO2008128577A1 Circuit arrangement for igniting and operating a discharge lamp |
| 10/30/2008 | WO2008128575A1 Circuit configuration for operating at least one discharge lamp and method for generating an auxiliary voltage |
| 10/30/2008 | WO2008128574A1 Circuit configuration for starting and operating at least one discharge lamp |
| 10/30/2008 | WO2008128573A1 Circuit arrangement for operating a vacuum gas discharge lamp |
| 10/30/2008 | WO2008128565A1 Circuit for controlling a fluorescent lamp, method for operating the circuit, and system comprising the circuit |
| 10/30/2008 | US20080265801 Solid state lighting apparatus |
| 10/30/2008 | US20080265800 Led Lighting Device |
| 10/30/2008 | US20080265799 Illumination control network |
| 10/30/2008 | US20080265798 Method and System of Controlling a Color Lighting Device |
| 10/30/2008 | US20080265796 Light management system device and method |
| 10/30/2008 | US20080265795 Circuit-Arrangement for Modulating an Led and Method for Operating Same |
| 10/30/2008 | US20080265794 current-driven toroidal-magnetic-core-free feedback type ballast |
| 10/30/2008 | US20080265790 Coupled lamp driving device |
| 10/29/2008 | EP1986475A1 Igniter circuit for an HID lamp |
| 10/29/2008 | EP1985161A1 Electronic ballast having adaptive frequency shifting |
| 10/29/2008 | EP1985160A1 Circuit arrangement and method of driving a high-pressure gas discharge lamp |
| 10/29/2008 | EP1985159A2 Circuit arrangement for providing an operating dc voltage |
| 10/29/2008 | EP1985158A1 An apparatus for radiating an object with uv radiation |
| 10/29/2008 | EP1712112B1 High frequency driver for gas discharge lamp |
| 10/29/2008 | CN201142777Y Classroom illumination electricity saving controller |
| 10/29/2008 | CN201142776Y Intelligent illumination electricity economizer |
| 10/29/2008 | CN201142775Y Zero frequency ignition device of fluorescent lamp |
| 10/29/2008 | CN201142774Y Driving circuit of HF lamp without electrodes |
| 10/29/2008 | CN201142773Y Automatically starting and igniting electric power of low-voltage optical spectrum mercury lamp |
| 10/29/2008 | CN101297608A Method and device for operating ultra-high voltage short-arc discharge lamp |
| 10/29/2008 | CN101297607A Method and circuit for driving gas discharge lamps using a single inverter |
| 10/29/2008 | CN101296547A Method for driving lamps, driving circuit for performing the same and liquid crystal display device having the same |
| 10/29/2008 | CN101296546A Light source driving mechanism with fault detection function |
| 10/29/2008 | CN101296545A Backlight module and current providing circuit thereof |
| 10/29/2008 | CN101296544A Parallel appended ignition circuit of high-pressure discharge lamp electronic ballast |
| 10/28/2008 | US7443141 Capacitor charging circuit, flash unit, and camera |