Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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11/09/2005 | EP1371211B1 Method and system for assigning and binding a network address of a ballast |
11/09/2005 | EP1281295B1 Lamp ballast with non-linear resonant inductor |
11/09/2005 | EP1277374B1 Ballast with peak detector |
11/09/2005 | CN2739920Y 金属卤素灯电子镇流器 Metal Halide Electronic Ballast |
11/09/2005 | CN2739919Y Daylight lamp delay electronic starting device |
11/09/2005 | CN1695404A High-pressure discharge lamp operation device and illumination appliance having the same |
11/09/2005 | CN1694597A Step light regulated fluorescent lamp ballast |
11/09/2005 | CN1693952A Liquid crystal display device, and light source driving circuit and method to be used in same |
11/09/2005 | CN1693950A Liquid crystal display device having an improved lighting device |
11/08/2005 | US6963329 Portable computer system and controlling method thereof |
11/08/2005 | US6963179 Frequency synchronization device for LCD lamps |
11/08/2005 | US6963178 Apparatus for controlling operation of gas discharge devices |
11/08/2005 | US6963176 Discharge lamp operation apparatus |
11/07/2005 | CA2506368A1 Electronic ballast for a lamp field |
11/03/2005 | WO2005104632A1 Circuit arrangement for operating high pressure discharge lamps and operating method for a high pressure discharge lamp |
11/03/2005 | WO2005104631A1 Lighting system |
11/03/2005 | WO2005104630A1 Discharge lamp operation device, lighting device, and lighting system |
11/03/2005 | WO2005104629A1 An electronic ballast with lifetime end protection |
11/03/2005 | WO2005103854A1 High intensity discharge strobe lamp assembly and method for producing attenuated-emi strobe illumination |
11/03/2005 | US20050243580 Apparatus and method of employing combined switching and PWM dimming signals to control brightness of cold cathode fluorescent lamps used to backlight liquid crystal displays |
11/03/2005 | US20050243052 Apparatus and method for driving lamp of liquid crystal display device |
11/03/2005 | US20050242789 Apparatus for supplying power, backlight assembly and liquid crystal display apparatus having the same |
11/03/2005 | US20050242756 Liquid crystal display device, and light source driving circuit and method to be used in same |
11/03/2005 | US20050242752 Staggering switching signals for multiple cold cathode fluorescent lamp backlighting system to reduce electromagnetic interference |
11/03/2005 | US20050242751 Inverter circuit with a power factor corrector |
11/03/2005 | US20050242750 Inverter circuit with a power factor corrector |
11/03/2005 | US20050242741 Image display |
11/03/2005 | US20050242739 Flat rare gas discharge lamp with variable output light color, illumination instrument comprising it, and its operating method |
11/03/2005 | US20050242738 Controller and driver architecture for double-ended circuitry for powering cold cathode fluorescent lamps |
11/03/2005 | DE102004047358B3 In zwei Halbleiterkörpern integrierte Schaltungsanordnung mit einem Leistungsbauelement und einer Ansteuerschaltung Integrated in two semiconductor bodies circuit arrangement having a power component and a drive circuit |
11/03/2005 | DE102004018371A1 Elektronisches Vorschaltgerät mit digitaler Steuerung von Dimmvorgängen Electronic ballast with digital control of dimming procedures |
11/03/2005 | DE102004018345A1 Schaltungsanordnung und Verfahren zum Zünden einer Gasentladungslampe mit zeitbegrenzter Startphase Circuit arrangement and method for igniting a gas discharge lamp with time-limited start-up phase |
11/02/2005 | EP1592120A2 Apparatus for controlling the power used in required operating conditions that vary over time, particularly for supplying power to lighting systems |
11/02/2005 | EP1592115A2 A new architecture of power supply system for LCD apparatus |
11/02/2005 | EP1590993A1 Electronic connection device |
11/02/2005 | EP1590992A1 Circuit and method for driving a load, in particular a high-intensity discharge lamp, and a control unit for said circuit |
11/02/2005 | EP1590877A1 Adaptive inductive power supply |
11/02/2005 | EP1590867A2 Adaptive inductive power supply with communication |
11/02/2005 | EP1590716A2 Digital control system for lcd backlights |
11/02/2005 | CN2738523Y Constant-power control apparatus for compact electronic fluorescent lamp |
11/02/2005 | CN2738522Y Cold cathode decorative lamp |
11/02/2005 | CN2738521Y Low-voltage AC/DC two-purpose fluorescent lamp ballast controller |
11/02/2005 | CN2738520Y Simple fluorescent lamp starting switch |
11/02/2005 | CN1692681A Flash device, camera device and method and program thereof for the elimination of wasteful power consumption therein |
11/02/2005 | CN1691870A Dimmer for cold cathode fluorescent tube |
11/02/2005 | CN1691869A Controller and driver architecture for double-ended circuitry for powering cold cathode fluorescent lamps |
11/02/2005 | CN1691868A Method for driving high voltage discharge lamp |
11/02/2005 | CN1691867A An electronic ballast with end-of-life (EOL) protection |
11/02/2005 | CN1691865A Method of driving lamp and driving circuit therefor |
11/02/2005 | CN1691486A Piezoelectric transformer drive circuit and cold cathode tube lighting apparatus |
11/02/2005 | CN1690777A Novel architecture of power supply system for liquid crystal display equipment |
11/02/2005 | CN1225946C Method and ballast for starting discharge lamp |
11/01/2005 | US6961518 Strobe light emitting apparatus and camera |
11/01/2005 | US6960891 Direct-type back light device |
11/01/2005 | US6960886 High-pressure metal-vapor discharge lamp lighting apparatus and headlight device for automobile |
11/01/2005 | US6960885 Electrodeless discharge lamp excited using microwave energy coupled through a coaxial waveguide |
11/01/2005 | US6960884 Device for operating a short arc discharge mercury lamp |
11/01/2005 | US6960312 Methods for the production of plastic lenses |
10/27/2005 | WO2005101922A1 Electronic lamp ballast comprising a digital control system for controlling dimming processes |
10/27/2005 | WO2005101921A2 Pfc and ballast control ic |
10/27/2005 | WO2005101920A2 A primary side current balancing scheme for multiple ccf lamp operation |
10/27/2005 | WO2005101116A1 Flash circuit |
10/27/2005 | WO2005074342A3 Box for a ballast |
10/27/2005 | US20050237010 Architecture of power supply system for LCD apparatus |
10/27/2005 | US20050237009 Driving unit of fluorescent lamp and method for driving the same |
10/27/2005 | US20050237008 Circuit having EMI and current leakage to ground control circuit |
10/27/2005 | US20050237007 Electronic alternating-current regulator |
10/27/2005 | US20050237004 Method for operating a high-pressure discharge lamp |
10/27/2005 | US20050237003 Circuit having clamped global feedback for linear load current |
10/27/2005 | US20050236999 Vehicular lamp |
10/27/2005 | DE20321023U1 Integrated current supply device for data equipment, has a current supply feeder unit, a rectifier unit and a unit for increasing voltage |
10/27/2005 | DE202005013554U1 Electronic ignition circuit for UV low pressure lamps provides time controlled heating and ignition |
10/27/2005 | DE19859241B4 Schaltungsanordnung zum Betreiben einer Gasentladungslampe Circuit arrangement for operating a gas discharge lamp |
10/27/2005 | DE102005014855A1 Lamp for lighting e.g. showcase, has controller for controlling power switching stage at constant operating voltage of cold cathode tubes when actual input voltage measured by voltage divider varies |
10/27/2005 | DE102005012737A1 Mikrowellenlampennetzanschluss, der einer Störung in einem Hochspannungskreis widerstehen kann Plasma lamp power supply that can withstand a fault in a high-voltage circuit |
10/27/2005 | DE102004042596A1 Distal adapter for new type of fluorescent lamp has contacts closer together than for old lamp and uses different secondary coil on transistor for new lamp |
10/27/2005 | DE102004017479A1 EVG mit Resonanzanregung zur Übernahmespannungserzeugung ECG with resonant excitation to the transfer voltage generation |
10/27/2005 | DE102004016945A1 EVG mit Regelschaltung und Störgrößenaufschaltung ECG with control circuit and feedforward |
10/27/2005 | DE102004016944A1 Wandlerschaltung mit gekoppelten Induktivitäten Converter circuit with coupled inductors |
10/26/2005 | EP1589791A2 Bypass device for bypassing an electric load |
10/26/2005 | EP1589790A2 Method for operating a high pressure discharge lamp |
10/26/2005 | EP1589645A2 Circuit for converting an AC voltage into a DC voltage |
10/26/2005 | EP1588590A1 Circuit arrangment |
10/26/2005 | EP1588589A1 Three-level dc-ac converter |
10/26/2005 | EP1588588A1 Circuit and method for providing power to a load, especially a high-intensity discharge lamp |
10/26/2005 | EP1588394A2 Microwave energized plasma lamp with dielectric waveguide |
10/26/2005 | CN2737114Y 电子镇流器 Electronic Ballast |
10/26/2005 | CN1689380A Radio frequency driven ultra-violet lamp |
10/25/2005 | US6958584 Lamp driving apparatus and method for driving lamp |
10/25/2005 | US6958583 AC voltage control circuit |
10/25/2005 | US6958582 Lamp current control circuit |
10/25/2005 | US6958580 Electronic ballast for a high intensity discharge lamp |
10/25/2005 | US6958579 Thermally-protected ballast for high-intensity-discharge lamps |
10/23/2005 | CA2503187A1 Method for operating a high-pressure discharge lamp |
10/20/2005 | WO2005099317A1 Discharge lamp operating device |
10/20/2005 | WO2005099316A2 Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system |
10/20/2005 | WO2005098901A1 High-pressure discharge lamp |
10/20/2005 | WO2005039239A3 Ballast protecting device |
10/20/2005 | US20050231133 LED power control methods and apparatus |
10/20/2005 | US20050231132 High intensity discharge strobe lamp assembly and method for producing attenuated-EMI strobe illumination |