| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 09/24/2009 | DE102008014694A1 Gas discharge lamp e.g. low-pressure gas discharge lamp, controlling method, involves utilizing actual value that is measured representative for middle value of lamp current as feedback variable for controlling gas discharge lamp |
| 09/24/2009 | DE102008013024A1 Supply unit for supplying current to high pressure discharge lamp, has printed circuit board having bushing contacts, which are suspended on plug connections in joining direction and inserted into housing part in joining direction |
| 09/23/2009 | EP2104404A1 Discharge lamp lighting apparatus, method for controlling the same, and projector |
| 09/23/2009 | EP2104403A1 Electronic ballast, lighting device and method for operating same |
| 09/23/2009 | EP2104402A1 Electronic ballast for fluorescent lamps |
| 09/23/2009 | EP2104212A1 Method and device for driving a HID lamp |
| 09/23/2009 | EP2104131A1 Electrodeless discharge lamp and illumination device equipped with same |
| 09/23/2009 | EP2103196A2 Automatic dimming range recognition method |
| 09/23/2009 | EP2103195A2 Method for operating a gas discharge lamp and a gas discharge lamp driver system |
| 09/23/2009 | EP2103194A2 Lamp driver for operating a gas discharge lamp |
| 09/23/2009 | EP2103193A1 Circuit arrangement and method for operating a high-pressure discharge lamp |
| 09/23/2009 | EP2103192A1 Circuit arrangement and method for starting and operating one or more discharge lamps |
| 09/23/2009 | EP2103191A2 Systems and methods for thermal management of lamps and luminaires using led sources |
| 09/23/2009 | CN201315698Y Series sound-light controlled switch for energy-saving lamp |
| 09/23/2009 | CN201315697Y Agricultural high-power light-filling lamp ballast |
| 09/23/2009 | CN201315696Y Direct current eye-protection lamp |
| 09/23/2009 | CN201315695Y Ballast |
| 09/23/2009 | CN201315694Y Encapsulation structure for electronic ballast |
| 09/23/2009 | CN201315693Y Novel encapsulation structure for electronic ballast |
| 09/23/2009 | CN201315692Y Internal automobile-used high-pressure gas discharge lamp ballast with automatic leveling function |
| 09/23/2009 | CN101543138A Driver for operating a gas discharge lamp |
| 09/23/2009 | CN101541139A Apparatus and method for managing the power of an electronic device |
| 09/23/2009 | CN101541138A Lamps and control module |
| 09/23/2009 | CN101541137A Realization method of lighting on demand of HID lamp and corresponding HID lamp |
| 09/23/2009 | CN101541136A Lighting intelligent control system |
| 09/23/2009 | CN101541135A Dimming coupled circuit matched with filaments of aerial discharge fluorescent lamp |
| 09/23/2009 | CN101541134A Drive circuit of low-voltage alternating-current fluorescent lamp |
| 09/23/2009 | CN101541133A Split type multi-energy-saving lamp illumination system |
| 09/23/2009 | CN101541132A Integral LED fluorescent lamp circuit |
| 09/23/2009 | CN101541131A Inverter circuit of driving a lamp and backlight module using the same |
| 09/23/2009 | CN101541130A End of Lamp life protective circuit for high-strength discharge lamp |
| 09/23/2009 | CN101541129A Discharge lamp lighting apparatus, method for controlling the same, and projector |
| 09/23/2009 | CN101541128A Electronic ballasting method of gas discharge lamp and ballast thereof |
| 09/23/2009 | CN101541127A Neon-light electronic transformer |
| 09/23/2009 | CN101541126A Method for leading HID lamp to operate under high frequency and resonate in silence and corresponding HID lamp |
| 09/23/2009 | CN100544540C Device and method for prolonging lamp tube life |
| 09/23/2009 | CN100544539C Protective circuit when lamp tube air leaking in electronic ballast |
| 09/23/2009 | CN100544538C Circuit system for running discharge lamp |
| 09/23/2009 | CN100544537C Discharge lamp lighting device and illuminating equipment |
| 09/23/2009 | CN100542974C Light assembly |
| 09/22/2009 | US7593241 Hybrid power supply system |
| 09/22/2009 | US7592753 Inductively-powered gas discharge lamp circuit |
| 09/17/2009 | WO2009114528A2 Electronic ballast for high intensity discharge lamps |
| 09/17/2009 | WO2009113384A1 Discharge tube lighting device |
| 09/17/2009 | WO2009113201A1 Illuminating device, display device and television receiving device |
| 09/17/2009 | WO2009111944A1 Hid ballast with integrated voltage multiplier and lamp temperature compensation |
| 09/17/2009 | US20090231554 Discharge lamp lighting apparatus, method for controlling the same, and projector |
| 09/17/2009 | US20090231553 Discharge lamp lighting device, control method thereof, and projector |
| 09/17/2009 | US20090231552 Lighting System and Method for Operating a Lighting System |
| 09/17/2009 | US20090230896 Fluorescent Lamp Holder Combination Device |
| 09/17/2009 | US20090230892 Safety loop for a light fixture |
| 09/17/2009 | US20090230890 Organic electroluminescent display device and method of producing the same |
| 09/17/2009 | US20090230889 Voltage sensing apparatus for power regulation and over-voltage protection of discharge lamp and method thereof |
| 09/17/2009 | US20090230888 Discharge lamp operation device |
| 09/17/2009 | US20090230887 Electronic ballast for a gas discharge lamp with controlled filament heating during dimming |
| 09/17/2009 | US20090230881 Led driver and circuit for controlling a power switch to provide a driving voltage to at least one led |
| 09/17/2009 | US20090230879 Driver circuit, method for operating and use of a current mirror of a driver circuit |
| 09/17/2009 | US20090230878 GaN-BASED SEMICONDUCTOR LIGHT-EMITTING ELEMENT, LIGHT-EMITTING ELEMENT ASSEMBLY, LIGHT-EMITTING APPARATUS, METHOD OF MANUFACTURING GaN-BASED SEMICONDUCTOR LIGHT-EMITTING ELEMENT, METHOD OF DRIVING GaN-BASED SEMICONDUCTOR LIGHT-EMITTING ELEMENT, AND IMAGE DISPLAY APPARATUS |
| 09/17/2009 | US20090230877 Discharge lamp lighting apparatus |
| 09/17/2009 | US20090230876 Metal halide discharge lamp and metal halide discharge lamp system |
| 09/17/2009 | US20090230875 Method and a driver circuit for led operation |
| 09/17/2009 | US20090230871 Organic light emitting display device and method of driving the same |
| 09/17/2009 | US20090230870 Electronic ballast for high intensity discharge lamps |
| 09/17/2009 | DE112007002621T5 Treiberschaltung für einen piezoelektrischen Transformator A drive circuit for a piezoelectric transformer |
| 09/17/2009 | DE102009011210A1 Vorschaltgerät mit vorprogrammiertem Start für Gasentladungslampen Ballast with pre-programmed start for gas discharge lamps |
| 09/17/2009 | DE102008013852A1 Control circuit e.g. application-specific integrated circuit, for series connection unit for gas discharge lamp, has error detection block for detecting two different types at illuminant errors based on feedback signals adjacent to inputs |
| 09/17/2009 | DE102007035889B4 Schichtaufbau für einen Impulskondensator zum Erzeugen eines Hochspannungspulses, Impulskondensator, Schaltungsanordnung damit und dessen Verwendung Layer structure for a pulse capacitor for generating a high voltage pulse, pulse capacitor, the circuit arrangement and its use thus |
| 09/17/2009 | CA2718423A1 Electronic ballast for high intensity discharge lamps |
| 09/16/2009 | EP2100484A1 Starting apparatus for a high-pressure discharge lamp, and a high-pressure discharge lamp with a starting apparatus |
| 09/16/2009 | EP2100483A2 Electromagnetic interference suppressing apparatus for high-frequency signal generation device |
| 09/16/2009 | EP2100481A1 Lighting controller |
| 09/16/2009 | EP1883491B1 Component with a weld projection having a projection |
| 09/16/2009 | CN201312406Y High frequency generator |
| 09/16/2009 | CN201312405Y Electronic ballast with lamp cap |
| 09/16/2009 | CN101536613A Circuit arrangement for operation of discharge lamps, and method for operation of discharge lamps |
| 09/16/2009 | CN101536612A Starting apparatus for a high-pressure discharge lamp, and a high-pressure discharge lamp with a starting apparatus |
| 09/16/2009 | CN101534598A Electronic light modulator for energy-saving lamp |
| 09/16/2009 | CN101534597A Electron ballast abnormality protective circuit |
| 09/16/2009 | CN101534596A Filter circuit, electrodeless lamp ballast and electrodeless lamp provided with filter circuit |
| 09/16/2009 | CN101534595A High frequency generator of electrodeless lamp and delayed start circuit thereof |
| 09/16/2009 | CN101533613A Drive control circuit, backlight module and drive method thereof |
| 09/16/2009 | CN100542372C Inverter controller with auto brightness regulation circuit |
| 09/16/2009 | CN100542371C Electronic ballast applicable to 400V/600W high voltage sodium lamps for agricultural use |
| 09/16/2009 | CN100542370C Backlight inverter for U-shaped lamp |
| 09/16/2009 | CN100542369C Lighting apparatus for discharge lamp |
| 09/16/2009 | CN100542368C Discharge lamp lighting device |
| 09/16/2009 | CN100542367C Radio frequency driven ultra-violet lamp |
| 09/15/2009 | US7589981 DC-AC converter and method of supplying AC power |
| 09/15/2009 | US7589478 Inverter circuit for discharge lamps for multi-lamp lighting and surface light source system |
| 09/15/2009 | US7589472 Electronic ballast with lamp type determination |
| 09/11/2009 | WO2009111601A2 Dual opto-coupler optical isolation circuit |
| 09/11/2009 | WO2009111110A1 Complimentary application specific integrated circuit for compact fluorescent lamps |
| 09/11/2009 | WO2009110750A2 Led lighting device |
| 09/11/2009 | WO2009109326A1 Circuit for heating and monitoring the hot coils of at least one gas discharge lamp operated by an evg and lighting system |
| 09/11/2009 | WO2009109325A1 Type recognition of a gas discharge lamp to be operated with an electronic ballast |
| 09/11/2009 | WO2009109224A1 Circuit arrangement for starting and operating a gas discharge lamp |
| 09/11/2009 | WO2009109223A1 Lamp operating time monitoring system |
| 09/11/2009 | CA2716943A1 Complimentary application specific integrated circuit for compact fluorescent lamps |
| 09/10/2009 | US20090227855 Controller device for an infusion pump |
| 09/10/2009 | US20090225391 Apparatus and methods relating to wavelength conditioning of illumination |