| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 06/30/2005 | US20050140631 Method and apparatus for driving liquid crystal display device |
| 06/30/2005 | US20050140404 Power-up circuit in semiconductor memory device |
| 06/30/2005 | US20050140340 Capacitor charger with a modulated current varying with an input voltage and method thereof |
| 06/30/2005 | US20050140314 Current control circuit |
| 06/30/2005 | US20050140313 Fixed operating frequency inverter for cold cathode fluorescent lamp having strike frequency adjusted by voltage to current phase relationship |
| 06/30/2005 | US20050140312 Backlight apparatus for liquid crystal display |
| 06/30/2005 | US20050140311 Device for operation of a high pressure discharge lamp and a projector device |
| 06/30/2005 | US20050140301 Arrangement in connection with a coupling device of a fluorescent lamp |
| 06/30/2005 | DE10353425A1 Betriebsschaltung für eine Gasentladungslampe Operating circuit for a gas discharge lamp |
| 06/29/2005 | EP1549114A1 Device for operation of a high pressure discharge lamp for a projector device |
| 06/29/2005 | EP1549113A1 A starter for fluorescent lamp and a fluorescent lamp using the starter |
| 06/29/2005 | EP1547395A1 Projection system |
| 06/29/2005 | CN2706992Y Circuit structure for driving multi-cold cathode fluorescent tubes |
| 06/29/2005 | CN1633830A Lamp sensor for a choke for operating a gas discharge lamp |
| 06/29/2005 | CN1633226A Preheating start-up type electronic ballast circuit |
| 06/29/2005 | CN1633225A Shell of electronic controller for lighting use |
| 06/29/2005 | CN1208996C Power supply unit for lamp |
| 06/28/2005 | US6911790 Multiplexed high voltage DC-AC driver |
| 06/28/2005 | US6911788 Electronic ballast of high power factor for compact fluorescent lamp |
| 06/28/2005 | US6911787 Driving method and driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panel |
| 06/28/2005 | US6911786 CCFL circuit with independent adjustment of frequency and duty cycle |
| 06/28/2005 | US6911778 Ignition control circuit for gas discharge lamps |
| 06/23/2005 | WO2005057990A1 Device for operating high-pressure discharge lamp and illumination instrument using the device |
| 06/23/2005 | WO2005039252A3 Battery saving flash charger control |
| 06/23/2005 | US20050136854 Transmitter |
| 06/23/2005 | US20050135797 Strobe light emitting apparatus and camera |
| 06/23/2005 | US20050135101 Solar powered light assembly to produce light of varying colours |
| 06/23/2005 | US20050135078 Flash device |
| 06/23/2005 | US20050134724 Lighting control apparatus |
| 06/23/2005 | US20050134235 Apparatus and method for constant delta current control in a capacitor charger |
| 06/23/2005 | US20050134201 Circuit arrangement for operating electric lamps |
| 06/23/2005 | US20050134200 Load control circuit |
| 06/23/2005 | US20050134199 Discharge lamp driving circuit provided with discharge detecting pattern |
| 06/23/2005 | US20050134198 Method and system for driving a plasma-based light source |
| 06/23/2005 | US20050134196 Fluorescent dimming system |
| 06/23/2005 | US20050134195 Lighting control apparatus |
| 06/23/2005 | US20050134192 Ignition system for a high-frequency high-intensity discharge lamp system |
| 06/23/2005 | US20050134188 Apparatus and method for producing variable intensity of light |
| 06/23/2005 | US20050134184 Illuminator |
| 06/23/2005 | US20050134183 Back light device for liquid crystal displays |
| 06/23/2005 | DE202005003386U1 Switch device for street lighting with an all-night circuit has safety fuses and a three-way switch relay to ensure power supply always connects to the same contact during alternate operation |
| 06/23/2005 | DE102004047399A1 Vereinfachte Topologie für HID-Lampen Simplified topology for HID lamps |
| 06/22/2005 | EP1545167A1 Arrangement in connection with a coupling device of a fluorescent lamp |
| 06/22/2005 | EP1545166A1 Electronic ballast system with a micro-controller for use with high intensity discharge lamps |
| 06/22/2005 | EP1545165A2 Discharge lamp driving circuit provided with discharge detecting pattern |
| 06/22/2005 | EP1545164A1 Circuit arrangement for operating electric lamps |
| 06/22/2005 | EP1275276B1 Energy converter comprising a control circuit |
| 06/22/2005 | CN2705990Y Full color luminous diode color and temperature change controller |
| 06/22/2005 | CN1631060A Inductively powered lamp assembly |
| 06/22/2005 | CN1630463A Operating circuit for a lamp with a heat sink |
| 06/22/2005 | CN1630453A Emergency light control circuit |
| 06/22/2005 | CN1630452A A fluorescent lamp filament preheating startup apparatus based on frequency conversion technique and design method thereof |
| 06/22/2005 | CN1630451A Lamp life detection and protection apparatus |
| 06/22/2005 | CN1630450A Circuit arrangement for operating electric lamps |
| 06/22/2005 | CN1630449A Apparatus and method for driving lamp of liquid crystal display device |
| 06/22/2005 | CN1630448A High-frequency electronic stabilizer |
| 06/22/2005 | CN1630447A Driving apparatus for multiple lamp tubes and transformer therefor |
| 06/22/2005 | CN1630446A Discharge lamp igniting apparatus and lighting apparatus equipped with same |
| 06/22/2005 | CN1207755C Lamp bulk with reflector and electrodeless discharge lamp using this lamp bulb |
| 06/22/2005 | CN1207753C High brightness discharge lamp and igniting device of high brightness discharge lamp |
| 06/21/2005 | US6909250 Apparatus and method for operating a portable xenon arc searchlight |
| 06/21/2005 | US6909246 Electronic ballast and electronic transformer |
| 06/21/2005 | US6909245 Ballast circuit for control of lamp power |
| 06/21/2005 | CA2274635C Apparatus for providing a nonlinear response |
| 06/19/2005 | CA2490485A1 Circuit arrangement for operating electric lamps |
| 06/16/2005 | WO2005055674A1 High voltage discharge lamp lighting method, lighting apparatus, and image device using that lighting apparatus |
| 06/16/2005 | WO2005055673A1 Fluorescent tube, life detecting method therefor, life detecting device therefor, fluorescent tube lighting device, display device, and information processing device |
| 06/16/2005 | WO2005021323A3 Led lighting system |
| 06/16/2005 | US20050128775 Dc-ac converter parallel operation system and controller ic therefor |
| 06/16/2005 | US20050128666 Electronic lighting ballast |
| 06/16/2005 | US20050128376 Liquid crystal display and the backlight module thereof |
| 06/16/2005 | US20050127851 Apparatus and method for driving lamp of liquid crystal display device |
| 06/16/2005 | US20050127850 Inductively powered apparatus |
| 06/16/2005 | US20050127849 Inductively powered apparatus |
| 06/16/2005 | US20050127848 Direct-type back light device |
| 06/16/2005 | US20050127847 Digital-dimming control method and module for dimming operation of a cold cathode fluorescent lamp |
| 06/16/2005 | US20050127842 Emergency lighting function illumination appliance |
| 06/16/2005 | DE19511242B4 Stromversorgungseinrichtung A power supply device |
| 06/15/2005 | EP1542513A1 High-voltage discharge lamp operating device |
| 06/15/2005 | EP1542347A1 Inverter circuit, fluorescent bulb operating device, backlight device, and liquid crystal display device |
| 06/15/2005 | EP1540998A2 A deuterium arc lamp assembly with an elapsed time indicator system and a method thereof |
| 06/15/2005 | EP1340413B1 Apparatus for providing overload protection for a circuit |
| 06/15/2005 | EP1330943A4 Ballast self oscillating inverter with phase controlled voltage feedback |
| 06/15/2005 | EP1314338B1 Circuit device |
| 06/15/2005 | CN2704990Y Inserted voltage stabilizing and fault-inspecting device for lamp |
| 06/15/2005 | CN1627878A Control circuit used in circuit of high strength gas discharge lamp |
| 06/15/2005 | CN1206884C Method for operating a direct current metal halogen arc lamp and circuit pertaining thereto |
| 06/15/2005 | CN1206883C Lighting device for illuminating apparatus and illuminating device |
| 06/15/2005 | CN1206882C Ballast for discharge lamp |
| 06/14/2005 | US6906477 Linear control device for controlling a resistive and/or an inductive and/or a capacitive load |
| 06/14/2005 | US6906476 Power control system for reducing power to lighting systems |
| 06/14/2005 | US6906474 Three-phase electronic ballast |
| 06/14/2005 | US6906473 Feedback circuit and method of operating ballast resonant inverter |
| 06/14/2005 | US6906468 Ballast device for uv radiator and also method and device for disinfecting water |
| 06/14/2005 | US6906460 Device and method for retaining mercury source in low-pressure discharge lamps |
| 06/14/2005 | US6906337 Method and device for operating a uv-radiation source |
| 06/09/2005 | WO2005053364A1 Electrodeless discharge lamp lighting apparatus and illuminating apparatus |
| 06/09/2005 | WO2005052973A2 Method and system for driving a plasma-based light source |
| 06/09/2005 | WO2005052907A1 Method and apparatus for image optimization in backlight displays |
| 06/09/2005 | WO2005052751A2 Light system manager |