Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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07/19/2005 | US6919695 Overvoltage protection for hid lamp ballast |
07/19/2005 | US6919694 Fixed operating frequency inverter for cold cathode fluorescent lamp having strike frequency adjusted by voltage to current phase relationship |
07/19/2005 | US6919693 High-voltage transformer and discharge lamp driving apparatus |
07/19/2005 | US6919692 Control device of gas-discharge light source |
07/19/2005 | US6919687 High-voltage discharge lamp lighting apparatus, high-voltage discharge lamp apparatus, and floodlight projector apparatus |
07/14/2005 | WO2005064997A1 Discharge lamp lighting apparatus and lamp system using the lighting apparatus |
07/14/2005 | WO2005064228A2 Lighting device of discharge lamp, illumination apparatus and illumination system |
07/14/2005 | US20050152163 Circuit arrangement for operating light sources |
07/14/2005 | US20050151483 Projection type video display |
07/14/2005 | US20050151482 Method and circuit arrangement for operating a high-pressure gas discharge lamp |
07/14/2005 | US20050151481 Circuit arrangment for operating light sources |
07/14/2005 | US20050151426 Evg units which may be wired in parallel due to lamp type |
07/14/2005 | US20050151424 Device and method for driving a plurality of loads |
07/14/2005 | DE4412510B4 Schaltungsanordnung zum Betreiben einer Hochdruck-Entladungslampe Circuit arrangement for operating a high pressure discharge lamp |
07/14/2005 | DE4330615B4 Verfahren zum Betreiben einer Hochdruck-Entladungslampe A method for operating a high pressure discharge lamp |
07/14/2005 | DE19821921B4 Schaltungsanordnung zum Betrieb einer Entladungslampe Circuit arrangement for operating a discharge lamp |
07/14/2005 | DE19707986B4 Schaltungsanordnung zum Betreiben einer Entladungslampe A circuit arrangement for operating a discharge lamp |
07/14/2005 | DE10359882A1 Schaltungsanordnung zum Betreiben von elektrischen Lampen Circuit arrangement for operating electric lamps |
07/14/2005 | DE10357538A1 Ballast device for gas discharge lamp, esp. for fluorescent lamps, has switch off device joined to voltage generating device |
07/13/2005 | EP1553811A2 Circuit arrangement for operating light sources with power factor correction |
07/13/2005 | EP1553810A2 Circuit arrangement for operating light sources with power factor correction |
07/13/2005 | EP1040399A4 Microprocessor controlled electronic ballast |
07/13/2005 | CN2710307Y Infrared controllable turn-off lamp device |
07/13/2005 | CN2710306Y 电子镇流器 Electronic Ballast |
07/13/2005 | CN2710305Y Voltage stabilization electric-saving device for high-voltage sodium lamp |
07/13/2005 | CN2710304Y Stroboscopic eliminating lamp |
07/13/2005 | CN2710157Y Electromagnetic induction lamp |
07/13/2005 | CN1640208A Circuit arrangement |
07/13/2005 | CN1640207A Electronic circuit and method of supplying energy to a high-pressure gas-discharge lamp |
07/13/2005 | CN1640206A Electric circuit for igniting a discharge lamp, and electric component module and discharge lamp incorporating such an electric circuit |
07/13/2005 | CN1638597A Single-stage backlight inverter and method for driving the same |
07/13/2005 | CN1638596A Circuit device for driving light source |
07/13/2005 | CN1638595A Circuit device for driving light source |
07/13/2005 | CN1638594A Drive circuit for lighting unit |
07/13/2005 | CN1638593A Method for operating a low pressure discharge lamp |
07/13/2005 | CN1638592A High pressure discharge lighting device and projector device |
07/13/2005 | CN1638591A Electric circuit with integrated feed |
07/13/2005 | CN1638590A Continuous mode ballast with pulsed operation |
07/13/2005 | CN1638589A Charge pump circuit to operate control circuit |
07/13/2005 | CN1638588A Discharge lamp lighting device and illuminating equipment |
07/13/2005 | CN1638584A 有机电致发光显示装置 Organic electroluminescent display device |
07/13/2005 | CN1638264A 电流控制电路 Current control circuit |
07/13/2005 | CN1637966A High-voltage triggering transformer for flash lamp circuit of camera or cellphone |
07/13/2005 | CN1637945A Power-up circuit semiconductor memory device |
07/13/2005 | CN1637824A Method and apparatus for driving liquid crystal display |
07/13/2005 | CN1637822A Device and method for driving a plurality of loads |
07/13/2005 | CN1637496A Method and apparatus for driving liquid crystal display device |
07/13/2005 | CN1210997C Apparatus for supplying power for fluorescent lamp |
07/12/2005 | US6917354 Fluorescent lamp, fluorescent lamp unit, liquid crystal display device, and method of emitting light |
07/12/2005 | US6917231 Pulse width modulation circuit and illuminating device incorporating same |
07/12/2005 | US6917163 Inductively powered lamp assembly |
07/12/2005 | CA2076813C End cap applicators for high frequency electrodeless lamps |
07/09/2005 | CA2491773A1 Circuit arrangement for operating light sources |
07/09/2005 | CA2491559A1 Circuit arrangement for operating light sources |
07/07/2005 | WO2005062684A1 Method and circuit arrangement for operating a discharge lamp |
07/07/2005 | WO2005062683A2 Apparatus and method for controlling discharge lights |
07/07/2005 | WO2005062681A1 System and method for applying power to high intensity discharge lamps |
07/07/2005 | WO2005062680A1 Illumination control system |
07/07/2005 | WO2005062674A1 Apparatus and method for producing variable intensity of light |
07/07/2005 | WO2005062139A1 Control system and illumination control system |
07/07/2005 | US20050146907 Single-stage backlight inverter and method for driving the same |
07/07/2005 | US20050146906 Power feedback power factor correction high frequency inverter |
07/07/2005 | US20050146653 Liquid crystal display |
07/07/2005 | US20050146291 Liquid crystal display and device of driving light source therefor |
07/07/2005 | US20050146290 System and method for powering cold cathode fluorescent lighting |
07/07/2005 | US20050146287 Continuous mode ballast with pulsed operation |
07/07/2005 | US20050146286 Multi-lamp drive device |
07/07/2005 | US20050146285 Circuit and method of igniting a high-pressure lamp |
07/07/2005 | US20050146284 Device and method for controlling a gas discharge lamp, and lighting system with gas discharge lamp and control device |
07/07/2005 | US20050146283 Charge pump circuit to operate control circuit |
07/07/2005 | US20050146245 Ceramic transformer level driving circuit |
07/07/2005 | US20050145880 Strobe light control circuit and IGBT device |
07/07/2005 | DE202005006585U1 Lamp, comprises a base, an arm connected to the base, and a barrier discharge lamp which is connected to the arm via a holder |
07/07/2005 | DE202005006549U1 Flashlight for lighting signals on towers and high buildings has a storage capacitor, a flash tube, a control device and a synchronizing device |
07/07/2005 | DE19801132B4 Stromversorgungsschaltung für eine Entladungslampe mit Leuchtzustandsdetektor Power supply circuit for a discharge lamp with light-emitting state detector |
07/07/2005 | DE19622803B4 Schaltungsanordnung für Hochdruck-Entladungslampe Circuitry for high-pressure discharge lamp |
07/06/2005 | EP1551208A2 Continuous mode ballast with pulsed opration |
07/06/2005 | EP1551207A2 Charge pump circuit to operate control circuit |
07/06/2005 | EP1550357A1 Device and method for determining the current flowing through a gas discharge lamp |
07/06/2005 | EP1504316A4 Pvm controller with automatic low battery power reduction circuit and lighting device incorporating the controller |
07/06/2005 | CN2708605Y Multifunctional sound control rectifier |
07/06/2005 | CN1636424A Starter assembly for a gas discharge lamp |
07/06/2005 | CN1635823A Micro-control electronic ballast system for high-intensity discharge lamp |
07/06/2005 | CN1635606A Multi-power luminous tube |
07/06/2005 | CN1209946C Method and apparatus for operating discharge lamp |
07/05/2005 | US6914395 Electronic ballast for a high-pressure discharge lamp |
07/05/2005 | US6914394 Supply circuit, in particular for a discharge lamp |
07/05/2005 | US6914393 Method and device for lighting high pressure discharge lamps |
07/05/2005 | US6914392 Switching apparatus for operating discharge lamps |
07/05/2005 | US6914391 Illuminating device |
07/05/2005 | US6914365 Piezoelectric transformation driving apparatus |
07/05/2005 | US6914261 Light emitting diode module |
07/05/2005 | CA2253468C Universal high intensity discharge (hid) electronic starter |
06/30/2005 | WO2005060320A1 Electronic ballast with lamp type determination |
06/30/2005 | WO2005060319A1 Electronic ballast with open circuit voltage regulation |
06/30/2005 | WO2005060083A1 Discharge lamp operation device and lighting fixture |
06/30/2005 | WO2005059964A2 Current-mode driver |
06/30/2005 | WO2004091258A3 High frequency electronic ballast with sine wave oscillator |
06/30/2005 | US20050141151 Integrated multi-capacitor network |
06/30/2005 | US20050140639 Method and apparatus for driving liquid crystal display |