| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
|---|
| 03/14/2007 | CN1929277A Resonant mode semi-bridge type D.C./A.C. conversion circuit |
| 03/14/2007 | CN1305352C Charging IC circuit of camera flash lapm |
| 03/13/2007 | US7190596 Resonant converter with phase controlled switching |
| 03/13/2007 | US7190151 High intensity discharge lamp ballast circuit |
| 03/13/2007 | US7190128 Multi-phase multi-lamp driving system |
| 03/13/2007 | US7190123 Circuit structure for driving a plurality of cold cathode fluorescent lamps |
| 03/08/2007 | WO2007025983A1 Ballast for a discharge lamp with adaptive preheating |
| 03/08/2007 | WO2007025976A1 Ballast for a discharge lamp with adaptive preheating |
| 03/08/2007 | WO2007025974A1 Method for operation of high-pressure lamps without hot-starting and lights with two high pressure discharge lamps |
| 03/08/2007 | WO2007025953A1 Electronic ballast for discharge lamps comprising an end-of-life monitoring circuit |
| 03/08/2007 | WO2007025849A1 Circuit arrangement and method for operating at least one electric lamp |
| 03/08/2007 | WO2007003042B1 Compensation for photo sensor |
| 03/08/2007 | WO2006120629A3 Method and circuit for enabling dimming using triac dimmer |
| 03/08/2007 | US20070052664 Liquid crystal display device having an improved lighting device |
| 03/08/2007 | US20070052373 Novel circuit designs and control techniques for high frequency electronic ballasts for high intensity discharge lamps |
| 03/08/2007 | US20070052372 Display apparatus |
| 03/08/2007 | US20070052371 Discharge lamp ballast with detection of abnormal discharge outside the arc tube |
| 03/08/2007 | US20070052370 Multi-lamp driving system |
| 03/08/2007 | US20070052369 Output voltage circuit of power supply |
| 03/08/2007 | US20070052368 Lighting fixture and method for operating same |
| 03/08/2007 | US20070052367 Blended light lamp |
| 03/08/2007 | US20070052365 Manufacturing method of high-pressure discharge lamp, high-pressure discharge lamp, lamp unit using high-pressure discharge lamp, and image display apparatus using high-pressure discharge lamp |
| 03/08/2007 | DE112005000783T5 IC mit PFC und Vorschaltsteuerung IC with PFC and Vorschaltsteuerung |
| 03/08/2007 | DE102005042527A1 Schaltungsanordnung und Verfahren zum Betreiben einer Entladungslampe Circuit arrangement and method for operating a discharge lamp |
| 03/08/2007 | DE10039236B4 Elektrische Schaltung, insbesondere zur Ansteuerung von Kaltkathodenröhren in integrierten Systemen Electrical circuit, in particular for the control of cold-cathode tubes in integrated systems |
| 03/08/2007 | CA2620245A1 Method for operating high-pressure lamps without hotstarting and luminaire having two high-pressure discharge lamps |
| 03/08/2007 | CA2620053A1 Electronic ballast for discharge lamps having an eol monitoring circuit |
| 03/07/2007 | EP1761112A2 Voltage level shifter for a sepic-converter |
| 03/07/2007 | EP1759565A1 Light source driving method and projector |
| 03/07/2007 | EP1759564A1 Light-source driving method and projector |
| 03/07/2007 | EP1514456B1 Electronic ballast with a charge pump for active power factor correction |
| 03/07/2007 | EP1448028B1 Discharge lamp operating apparatus |
| 03/07/2007 | EP1293109B1 Electronic ballast circuit for operating a high intensity discharge lamp |
| 03/07/2007 | CN2877187Y Brightness regulating circuit for energy saving lamp |
| 03/07/2007 | CN2877186Y Induction fluorescent lamp electricity saver |
| 03/07/2007 | CN2877006Y Ballast |
| 03/07/2007 | CN2876828Y Lamp feed back liquid crystal display system |
| 03/07/2007 | CN1926927A Plasma generation power supply apparatus |
| 03/07/2007 | CN1926754A Current overload and voltage detection in a central point |
| 03/07/2007 | CN1926379A Lamp-operating unit and low-pressure mercury discharge lamp |
| 03/07/2007 | CN1925715A Bulb type fluorescent lamp apparatus |
| 03/07/2007 | CN1925714A Multistage light modulation control device for gas-discharge lamp and light modulation control method thereof |
| 03/07/2007 | CN1925713A Discharge lamp lighting device |
| 03/07/2007 | CN1925712A Fluorescent light control circuit and system |
| 03/07/2007 | CN1925711A Driving circuit for discharge lamp and driving method thereof |
| 03/07/2007 | CN1925710A Voltage isolation for a SEPIC type converter |
| 03/07/2007 | CN1925709A Discharge lamp lighting device |
| 03/07/2007 | CN1925708A Production illumination control system for tyre hoisting operation tracing cargotainer yard |
| 03/07/2007 | CN1925252A Circuit for limiting the input voltage on a pin of an integrated circuit |
| 03/07/2007 | CN1303747C Converter controller |
| 03/07/2007 | CN1303002C Fluid treatment system |
| 03/06/2007 | US7187244 Digital light ballast oscillator |
| 03/06/2007 | US7187140 Lamp current control using profile synthesizer |
| 03/06/2007 | US7187139 Split phase inverters for CCFL backlight system |
| 03/06/2007 | US7187138 Excimer lamp apparatus |
| 03/06/2007 | US7187137 Ballast with output ground-fault protection |
| 03/06/2007 | US7187135 High intensity discharge lamp electronics controller |
| 03/06/2007 | US7187134 Method of triggering at least one illuminating means and triggering circuit for practicing such method |
| 03/06/2007 | US7187132 Ballast with filament heating control circuit |
| 03/06/2007 | US7186953 Mercury-heating device and method of manufacturing the same |
| 03/06/2007 | CA2558980A1 Ballast reset switch |
| 03/01/2007 | WO2007023945A1 Discharge plasma generation auxiliary device |
| 03/01/2007 | WO2007023603A1 Dc/dc converter device and discharge lamp lighting device |
| 03/01/2007 | WO2007023418A1 Easy in-easy out starter |
| 03/01/2007 | WO2007003037B1 Method and system for controling a luminaire |
| 03/01/2007 | WO2007003036B1 Method and system for luminance characterization |
| 03/01/2007 | US20070046218 Apparatus and method for driving plural lamps |
| 03/01/2007 | US20070046217 Open lamp detection in an EEFL backlight system |
| 03/01/2007 | US20070046216 Cold cathode tube lighting device, tube current detecting circuit used in cold cathode tube lighting device, tube current controlling method and integrated circuit |
| 03/01/2007 | DE102005041076A1 Switching arrangement for operating electric lamp has supply circuit whose internal resistance during fixed current supply is larger than during starting current supply |
| 03/01/2007 | DE102005041075A1 High pressure discharge lamp operating method for use in light, involves shifting lamp into stand-by-condition so that lamp takes operating condition with maximum light output and is switched off during non-resetting of light |
| 03/01/2007 | DE102005041073A1 Circuit arrangement for limiting input voltage at connection pin of integrated circuit (IC) includes gradual limiter and filter circuit comprised of two separate circuits |
| 03/01/2007 | CA2558757A1 A reversible dimmer device of gas discharge lamps and the control method for light adjusting thereof |
| 02/28/2007 | EP1757172A1 Method and circuit arrangement for operating a high-pressure gas discharge lamp |
| 02/28/2007 | EP1658758A4 Energy saving lamp with sensor |
| 02/28/2007 | CN2874980Y Power saving device for light and road lamp |
| 02/28/2007 | CN1922936A Driver device for a gas discharge lamp and igniter |
| 02/28/2007 | CN1922935A Control circuit for converters |
| 02/28/2007 | CN1922934A Discharge lamp lighting device and projector |
| 02/28/2007 | CN1922932A Illumination control system |
| 02/28/2007 | CN1922700A Inductive coil assembly |
| 02/28/2007 | CN1921727A Current transducing unit and current transducer |
| 02/28/2007 | CN1921726A Touch sensor and location indicator circuits |
| 02/28/2007 | CN1921725A Energy conserving lamp |
| 02/28/2007 | CN1921724A Power supply circuit and electronic appliance therewith |
| 02/28/2007 | CN1921723A Cold cathode tube lighting device, tube current detecting circuit used in cold cathode tube lighting device, and tube current controlling method |
| 02/28/2007 | CN1921722A Glow starter module for full wave multiple voltage fluorescent lamp |
| 02/28/2007 | CN1921721A LED light-emitting device with light control |
| 02/28/2007 | CN1921719A Energy-saving device for road lamp |
| 02/28/2007 | CN1921540A Image scanning instrument with light source used for starting of cold cathode fluorescent tube |
| 02/27/2007 | US7183727 Optical and temperature feedbacks to control display brightness |
| 02/27/2007 | US7183726 Cold cathode fluorescent lamp drive apparatus and method |
| 02/27/2007 | US7183725 Backlight inverter system and control method for starting the same |
| 02/27/2007 | US7183724 Inverter with two switching stages for driving lamp |
| 02/27/2007 | US7183723 PWM illumination control circuit with low visual noise for driving LED |
| 02/27/2007 | US7183722 Apparatus and method of driving lamp of liquid crystal display device |
| 02/27/2007 | US7183721 Ballast with circuit for detecting and eliminating an arc condition |
| 02/27/2007 | CA2178851C Discharge light source with reduced magnetic interference |
| 02/22/2007 | WO2007020776A1 High-pressure discharge lamp operating device |
| 02/22/2007 | WO2006131890A3 A control device for controlling the output of one or more full-bridges |