| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 01/11/2006 | CN1719962A Device and method for prolonging lamp tube life |
| 01/11/2006 | CN1719961A Magnetic ballast for discharge lamp |
| 01/11/2006 | CN1719960A Discharge lamp lighting apparatus for lighting multiple discharge lamps |
| 01/11/2006 | CN1719711A Resonant inverter including feed back circuit with source of variable bias current |
| 01/11/2006 | CN1236654C Circuit for exciting cold cathode fluorescent lamp |
| 01/10/2006 | US6984943 Method and apparatus for lighting high pressure discharge lamp, high pressure discharge lamp apparatus, and projection-type image display apparatus |
| 01/10/2006 | US6984320 Removable closure assembly for a water treatment system |
| 01/10/2006 | CA2267366C Process for generating voltage pulse sequences and circuit assembly therefor |
| 01/10/2006 | CA2263696C Pump support choke |
| 01/10/2006 | CA2261316C Ignition device for a discharge lamp and method for igniting a discharge lamp |
| 01/09/2006 | CA2511706A1 Circuit arrangement having a full bridge with switching load relief for operating lamps |
| 01/07/2006 | CA2506406A1 Resonant inverter including feed back circuit with source of variable bias current |
| 01/07/2006 | CA2506403A1 Resonant inverter including feed back circuit having phase compensator and controller |
| 01/07/2006 | CA2506402A1 Control system for a resonant inverter with self-oscillating driver |
| 01/05/2006 | WO2006000932A1 Method and driving circuit for operating a hid lamp |
| 01/05/2006 | WO2006000931A1 Gas discharge lamp driving method |
| 01/05/2006 | WO2004084585A3 High intensity discharge lamp ballast circuit |
| 01/05/2006 | US20060001642 Liquid crystal display device |
| 01/05/2006 | US20060001385 Apparatus for driving lamp of liquid crystal display device |
| 01/05/2006 | US20060001384 LED lamp |
| 01/05/2006 | DE202005016826U1 Ballast arrangement for operating gas discharge lamps, has electronic ballast modules exhibiting respective generator drivers, controllable by perfluorocarbon-component, and control units for controlling component and respective drivers |
| 01/05/2006 | DE102005006665A1 Vorschaltgerät für eine Entladungslampe Ballast for a discharge lamp |
| 01/05/2006 | DE102004028799A1 Schaltung zum Betrieb von Lichtquellen Circuitry for operating light sources |
| 01/05/2006 | DE102004028798A1 Schaltung mit Abschalteinrichtung zum Betrieb von Lichtquellen Circuit with switch-off device for operating light sources |
| 01/05/2006 | DE102004027602A1 Scheinwerfer für Fahrzeuge Headlights for vehicles |
| 01/04/2006 | CN2750616Y An electronic ballast startup damping device |
| 01/04/2006 | CN2750615Y LC advanced annular ballast |
| 01/04/2006 | CN1717960A Symmetric cancelling anti-striation circuit |
| 01/04/2006 | CN1717144A Digital driving system for cold cathode fluorescent lamp |
| 01/04/2006 | CN1717143A Fluorescent lamp lighting device |
| 01/04/2006 | CN1717142A High pressure discharge lamp lighting apparatus |
| 01/04/2006 | CN1716469A Multiple lamp tube driving device |
| 01/04/2006 | CN1716051A Device and method for driving lamp of liquid crystal display device |
| 01/04/2006 | CN1235448C Pump support choke |
| 01/04/2006 | CN1235183C Automatic light intensity control equipment and method in liquid crystal display equipment |
| 01/03/2006 | US6982889 DC/AC converter and its controller IC |
| 01/03/2006 | US6982886 Dc-ac converter parallel operation system and controller ic therefor |
| 01/03/2006 | US6982858 Electronic power-saving power control circuit |
| 01/03/2006 | US6982528 Thermal protection for lamp ballasts |
| 01/03/2006 | US6982526 Dielectric barrier discharge lamp and method and circuit for igniting and operating said lamp |
| 12/29/2005 | WO2005124496A2 Method and system for enhanced dimming resolution in a light ballast through use of multiple control frequencies |
| 12/29/2005 | WO2005122686A2 Vehicle interface |
| 12/29/2005 | WO2005059964B1 Current-mode driver |
| 12/29/2005 | US20050285549 Inverter apparatus and liquid crystal display including inverter apparatus |
| 12/29/2005 | US20050285548 Method and apparatus for driving an external electrode fluorescent lamp |
| 12/29/2005 | US20050285546 Information handling system with dual mode inverter |
| 12/29/2005 | US20050285545 Circuit arrangement and operating device for operating lamps |
| 12/29/2005 | US20050285544 Circuit arrangement for operating at least one high-pressure discharge lamp |
| 12/29/2005 | US20050285535 High pressure discharge lamp lighting apparatus |
| 12/29/2005 | US20050285478 Driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panel |
| 12/29/2005 | US20050285476 Piezoelectric power supply |
| 12/29/2005 | DE112004000145T5 Steuer-IC für Dimm-Vorschaltgerät mit Flackerunterdrückungsschaltung Control IC for dimming ballast with Flackerunterdrückungsschaltung |
| 12/29/2005 | DE102005025902A1 Stromversorgungsvorrichtung und Fahrzeugleuchte Power supply device and vehicle lamp |
| 12/29/2005 | DE102005024121A1 Vorrichtung und Verfahren zur Helligkeitssteuerung einer Flüssigkristalldisplay-Einrichtung Apparatus and method for controlling the brightness of a liquid crystal display device |
| 12/29/2005 | DE102004021243B3 Vorrichtung zur Erzeugung von elektrischen Spannungsimpulsfolgen, insbesondere zum Betrieb von kapazitiven Entladungslampen und ihre Verwendung Device for generating electrical voltage pulse sequences, particularly for the operation of the capacitive discharge lamps and their use |
| 12/29/2005 | CA2510350A1 Circuit arrangement and operating device for operating lamps |
| 12/28/2005 | EP1610595A1 High-intensity discharge lamp lighting apparatus and lighting driving method therefor |
| 12/28/2005 | EP1610351A2 Transformer and power source utilizing transformer |
| 12/28/2005 | EP1610296A2 Assembly of flourescent tubes in back light and liquid crystal display |
| 12/28/2005 | EP1610295A2 Flourescent tube of back light and liquid crystal display |
| 12/28/2005 | EP1610294A2 Back light with flourescent tubes and liquid crystal display |
| 12/28/2005 | EP1609337A1 Lighting apparatus for high intensity discharge lamp |
| 12/28/2005 | EP1387765A4 A dual lamp system for manufacturing dvd |
| 12/28/2005 | CN2749219Y Electronic ballast of fluorescent lamp |
| 12/28/2005 | CN2749218Y Energy-saving electronic ballast |
| 12/28/2005 | CN2749217Y Constant power electronic ballast for high-efficiency sodium lamp and metal halide lamp |
| 12/28/2005 | CN2749216Y Practical novel energy-saving daylight lamp |
| 12/28/2005 | CN2749215Y Constant power, single/double electrode multitube low harmonic shared electronic ballast |
| 12/28/2005 | CN1714607A Circuit arrangement for operating discharge lamps |
| 12/28/2005 | CN1714308A Power supply apparatus and liquid crystal display using the same |
| 12/28/2005 | CN1713796A Dimmer controller of headlamp from temperature compensation |
| 12/28/2005 | CN1713795A High-intensity discharge lamp lighting apparatus and lighting driving method therefor |
| 12/28/2005 | CN1713794A Special controlling IC and thick-membrane circuit for electronic ballast resistor of HID light |
| 12/28/2005 | CN1234146C Series resonance neon light transformer |
| 12/27/2005 | US6979960 Circuit for driving light source, projector, method for controlling lighting of light source, and computer readable program for executing the same |
| 12/27/2005 | US6979959 Apparatus and method for striking a fluorescent lamp |
| 12/27/2005 | US6979958 High efficacy metal halide lamp with praseodymium and sodium halides in a configured chamber |
| 12/27/2005 | US6979957 Apparatus for driving lamp of liquid crystal display device |
| 12/27/2005 | US6979955 Deriving power for a wireless network component from the power source of a fluorescent light |
| 12/27/2005 | US6979952 Electrodeless lamp system with orthogonally disposed resonance units |
| 12/27/2005 | US6979085 Image projector and method of operating same |
| 12/27/2005 | CA2304911C Luminaire starting aid device |
| 12/27/2005 | CA2217823C Hot relight system for electrodeless high intensity discharge lamps |
| 12/22/2005 | WO2005122652A1 Discharge lamp lighting device and projector |
| 12/22/2005 | WO2005121877A1 Liquid crystal display and control method thereof |
| 12/22/2005 | WO2005089309A3 Power control methods and apparatus |
| 12/22/2005 | WO2005052973A3 Method and system for driving a plasma-based light source |
| 12/22/2005 | WO2005003878A3 Ballast control ic with multi-function feedback sense |
| 12/22/2005 | US20050280964 Parallel power supply system for low voltage devices |
| 12/22/2005 | US20050280625 Liquid crystal display device having an improved backlight |
| 12/22/2005 | US20050280492 Wound-rotor type transformer and power source utilizing wound-rotor type transformer |
| 12/22/2005 | US20050280377 Thermal protection for lamp ballasts |
| 12/22/2005 | US20050280374 Apparatus and method for driving lamp of liquid crystal display device |
| 12/22/2005 | US20050280371 Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps |
| 12/22/2005 | DE102005023171A1 Lichtvorrichtung für Entladungslampen Light device for discharge lamps |
| 12/22/2005 | DE102005014857A1 Cold cathode fluorescent tube lamp for piece of furniture or display cabinet has tube of sinusoidal shape on circular backplate with switch and starter circuit and has circular transparent cover |
| 12/22/2005 | DE102004025774A1 Vorschaltgerät für Entladungslampe mit Dauerbetriebs-Regelschaltung Ballast for discharge lamp with continuous-operation control circuit |
| 12/21/2005 | EP1608208A2 Circuit with shut-down device for operating light sources |
| 12/21/2005 | EP1608207A2 Circuit for operating light sources |
| 12/21/2005 | EP1607997A1 Method for producing high-pressure discharge lamp, high-pressure discharge lamp and lamp unit using such high-pressure discharge lamp, and image display |