| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
|---|
| 04/13/2011 | CN101175360B High-voltage triggering circuit for ballast of vehicle xenon front lamp |
| 04/13/2011 | CN101116379B Hid ballast |
| 04/13/2011 | CN101111115B Filament control device for hot-cathode electric ballast |
| 04/12/2011 | US7923941 Low cost compact size single stage high power factor circuit for discharge lamps |
| 04/12/2011 | US7923934 Battery-powered fluorescent lamp |
| 04/12/2011 | US7922337 Method for establishing a light beam with substantially constant luminous intensity |
| 04/07/2011 | WO2011040512A1 Fluorescent lamp drive device and protection circuit for fluorescent lamp drive device |
| 04/07/2011 | WO2011039801A1 Ignitor transformer, and discharge lamp igniting device that does not use mercury |
| 04/07/2011 | WO2011038974A1 Electronic ballast and method for operating at least one discharge lamp |
| 04/07/2011 | US20110080119 Circuits and methods for driving light sources |
| 04/07/2011 | US20110080118 Dc-dc converter |
| 04/07/2011 | US20110080117 Distributed architecture voltage controlled backlight driver |
| 04/07/2011 | US20110080115 Constant current control circuit with multiple outputs for led driver |
| 04/07/2011 | US20110080106 Turning off muliple fluorescent lamps simultaneously using RF-enabled lamp starter units |
| 04/07/2011 | US20110080105 Variable light control system and method using momentary circuit interrupt |
| 04/07/2011 | US20110080104 Line synchronized Electrical Device And Controlling Method Thereof |
| 04/07/2011 | US20110080103 Method and apparatus for power driving |
| 04/07/2011 | DE102010041983A1 Method for controlling high pressure discharge lamp, involves feeding resonant circuit with high frequency voltage, where high frequency voltage exhibits frequency such that spectrum at output of circuit spreads on multiple harmonics |
| 04/07/2011 | DE102009043611A1 Elektronisches Vorschaltgerät und Verfahren zum Betreiben mindestens einer Entladungslampe An electronic ballast and method for operating at least a discharge lamp |
| 04/07/2011 | DE102009041724A1 Electronic switching arrangement for limitation of start-up current for electronic ballast of electrical lamp load, has MOSFETs switched such that current flowing over outlet line is limited to one point of switch-on time in preset manner |
| 04/06/2011 | EP2306791A2 Dimming a multi-lamp fluorescent light fixture by turning off an individual lamp using a wireless fluorescent lamp starter |
| 04/06/2011 | EP2306790A1 Dimmable and static ballast on a universal PCB |
| 04/06/2011 | EP2306493A1 Light emitting device |
| 04/06/2011 | EP2153700B1 Method for igniting and starting high-pressure discharge lamps |
| 04/06/2011 | EP2127495B1 Circuit arrangement and method for adapting the output of high-pressure discharge lamps |
| 04/06/2011 | EP2123133B1 Universal electronic ballast for operating hg-free and hg-containing discharge lamps |
| 04/06/2011 | EP1938669B1 Method for operating a gas discharge lamp |
| 04/06/2011 | EP1262090B1 Lighting system |
| 04/06/2011 | CN201789674U Remote-control type intelligent electronic ballast |
| 04/06/2011 | CN201789673U Public fluorescent lamp |
| 04/06/2011 | CN201789672U 电子镇流器 Electronic Ballast |
| 04/06/2011 | CN201789671U 一种无极灯 One kind of lamp |
| 04/06/2011 | CN201789670U Regulated ultraviolet lamp ballast |
| 04/06/2011 | CN201789669U Improved structure for lighting ballast of cold-cathode tube |
| 04/06/2011 | CN201789668U Novel electronic ballast device for fluorescent lamp |
| 04/06/2011 | CN201787469U Automatic switch energy-saving street lamp |
| 04/06/2011 | CN201787424U Efficient energy-saving street lamp |
| 04/06/2011 | CN1893759B Smoothing circuit for improving EMC |
| 04/06/2011 | CN1891016B System and method for applying power to high intensity discharge lamps |
| 04/06/2011 | CN102006711A Single lamp control power-saving system |
| 04/06/2011 | CN102006710A Power supply changeover drive circuit and fluorescent lamp drive circuit |
| 04/06/2011 | CN102006709A Electronic ballast with novel positive-negative voltage-multiplying serial firing circuit structure |
| 04/06/2011 | CN102006708A Electronic ballast with novel auxiliary winding parallel firing circuit structure |
| 04/06/2011 | CN102006707A Electronic ballast with novel auxiliary winding serial ignition circuit structure |
| 04/06/2011 | CN102006706A Electronic ballast |
| 04/06/2011 | CN102006705A Lamp tube driving circuit |
| 04/05/2011 | US7920390 DC-AC converter, controller IC therefor, and electronic apparatus utilizing such DC-AC converter |
| 04/05/2011 | US7920053 Notification system and method thereof |
| 04/05/2011 | US7919930 Coil component and display device using same |
| 04/05/2011 | US7919929 Lamp driving device having impedance component detecting abnormal discharge |
| 04/05/2011 | US7919927 Circuit having EMI and current leakage to ground control circuit |
| 04/05/2011 | US7919926 Aggregate ignition method in high frequency metal halide lamps |
| 04/05/2011 | US7919923 Plasma lamp with dielectric waveguide |
| 03/31/2011 | WO2011037774A1 Solid state lighting apparatus with compensation bypass circuits and methods of operation thereof |
| 03/31/2011 | US20110074311 High-voltage discharge lamp lighting device and lighting fixture |
| 03/31/2011 | US20110074309 Field emission device and method of operating the same |
| 03/31/2011 | US20110074308 Controller for controlling dimming of a light source |
| 03/31/2011 | US20110074307 Electronic ballast and method for providing a dc voltage component during lamp startup |
| 03/31/2011 | US20110074305 Alternative current light-emitting systems |
| 03/31/2011 | US20110074304 Wirelessly supplied illumination means |
| 03/31/2011 | US20110074303 Illumination apparatus implementing non-lethal weapon |
| 03/31/2011 | US20110074302 Phase Control Dimming Compatible Lighting Systems |
| 03/31/2011 | US20110074298 Light emitting device with variable volume |
| 03/31/2011 | US20110074295 Discharge lamp lighting device, vehicle-mounted high-intensity discharge lamp lighting device, and vehicle |
| 03/30/2011 | EP2302984A1 Lighting device and backlight device |
| 03/30/2011 | EP2302761A1 Powerline control system |
| 03/30/2011 | CN201781674U Xenon light source rectifier and xenon lamp |
| 03/30/2011 | CN201781673U Multi-way output circuit of electrodeless lamp electronic ballast |
| 03/30/2011 | CN201781672U Electronic ballast |
| 03/30/2011 | CN201781671U Electronic ballast |
| 03/30/2011 | CN201781670U Electronic ballast |
| 03/30/2011 | CN201781669U Electronic ballast |
| 03/30/2011 | CN201781668U Power supply of metal halogen lamp |
| 03/30/2011 | CN201781667U Electrodeless lamp electronic ballast controlled by power line carrier |
| 03/30/2011 | CN201779473U Xenon light source cold-reflection cup and xenon lamp |
| 03/30/2011 | CN1794894B Driving device of cold-cathode fluorescent lamp |
| 03/30/2011 | CN1784106B Methods and systems for diagnosing projection device failure |
| 03/30/2011 | CN1735308B Lamp operation controller and controlling method of lamp operation |
| 03/30/2011 | CN1610474B Inverter circuit for discharge tube |
| 03/30/2011 | CN101999255A Arrangement relating power backup and method for power backup |
| 03/30/2011 | CN101999254A Switchable current supply for auxiliary current circuits in a current converter |
| 03/30/2011 | CN101998745A PWM/PFM synchronous control dimming circuit |
| 03/30/2011 | CN101998744A Manual dimmer |
| 03/30/2011 | CN101998743A Topological T-type network driver principle and control method |
| 03/30/2011 | CN101998742A Special electronic ballast for fluorescent lamp |
| 03/30/2011 | CN101998741A Electromagnetic induction lamp |
| 03/30/2011 | CN101998740A Controller for high-power electronic product |
| 03/30/2011 | CN101998739A Energy-saving fluorescent lamp |
| 03/30/2011 | CN101998738A High pressure discharge lamp lighting device and projector |
| 03/30/2011 | CN101998737A Filament-free energy-saving lamp |
| 03/30/2011 | CN101998736A Driving device |
| 03/30/2011 | CN101998714A Lighting apparatus and lighting fixture |
| 03/30/2011 | CN101645442B Light-emitting diode devices |
| 03/30/2011 | CN101494154B Gas charging lamp |
| 03/30/2011 | CN101160010B Self-adaptive controller for brightness of fluorescent lamp |
| 03/30/2011 | CN101098579B Limited current circuit of digital inverter for LCD backlight |
| 03/29/2011 | US7916132 Systems for displaying images and related methods |
| 03/29/2011 | US7916116 Liquid crystal display |
| 03/24/2011 | WO2011033412A2 Electronic ballast with dimming circuit |
| 03/24/2011 | WO2011032785A1 Device for reducing electromagnetic interference of a fluorescent illumination device, arrangement, fluorescent illumination element, fluorescent tube element and method of reducing electromagnetic interference of a fluorescent illumination device |