| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 06/04/2008 | CN101193488A Brightness adjusting method and device |
| 06/04/2008 | CN101193487A Backlight unit having protection circuit using induced voltage detection |
| 06/04/2008 | CN101193486A Lamp tube status judgement circuit and its controller |
| 06/04/2008 | CN100393181C Programmable PWM module for controlling a ballast |
| 06/04/2008 | CN100393180C Circuit arrangement |
| 06/04/2008 | CN100393179C Ballast and method for providing asymmetrical alternating current to gas discharging lamp |
| 06/04/2008 | CN100393178C Operation method of discharging lamp, electronic ballast and illumination system |
| 06/04/2008 | CN100392546C Single chip ballast control with power factor correction |
| 06/04/2008 | CN100392545C Electronic dimmable ballast for high intensity discharge lamp |
| 06/03/2008 | US7382208 Operating method for the resonant operation of high-pressure lamps in longitudinal mode, and an associated system and electronic ballast |
| 06/03/2008 | US7382101 Lighting system |
| 06/03/2008 | US7382093 Device for operation of a discharge lamp of the short arc type |
| 05/29/2008 | WO2008063003A1 Pwm controlling circuit, apparatus of controlling backlight comprising the same, and apparatus of driving backlight comprising the apparatus of controlling backlight |
| 05/29/2008 | WO2008061562A1 Electronic ballast, luminaire and method for determining a characteristic variable relating to the life of an electronic ballast |
| 05/29/2008 | WO2008061559A1 Circuit arrangement and method for operating a discharge lamp with preheatable electrodes |
| 05/29/2008 | WO2008006024A3 Striking and open lamp regulation for ccfl controller |
| 05/29/2008 | US20080124059 Constant voltage power supply circuit, constant voltage supplying method, and portable constant voltage power supply device, electric reel, fishing rod supporting tool, and fishing rod holding device that use the same constant voltage power supply circuit |
| 05/29/2008 | US20080122762 Dynamic led matrix lighting control using scanning architecture |
| 05/29/2008 | US20080122588 Address-Free Driving Device and Lighting Fixture System |
| 05/29/2008 | US20080122388 Illumination device and method of controlling the lamp unit thereof |
| 05/29/2008 | US20080122387 Lamp state determining circuit and controller thereof |
| 05/29/2008 | US20080122386 Control Unit for a Lamp Driver Providing Smooth Transition Between Operation Modes |
| 05/29/2008 | US20080122384 Lighting Network Control System And Control Method |
| 05/29/2008 | US20080122383 Led driver |
| 05/29/2008 | US20080122380 Discharge Lamp Lighting Circuit |
| 05/29/2008 | US20080122379 Striking and open lamp regulation for ccfl controller |
| 05/29/2008 | US20080122364 Light device having LED illumination and an electronic circuit board |
| 05/29/2008 | US20080121761 Control of the luminous intensity of power LEDs by using the photoelectric effect characteristics of said power LEDs |
| 05/29/2008 | DE102007054273A1 Elektronische Schaltung zum Betrieb mehrerer Gasentladungslampen an einer gemeinsamen Spannungsquelle An electronic circuit for operating a plurality of gas discharge lamps to a common voltage source |
| 05/29/2008 | DE102006054785A1 System zum Betreiben einer elektrischen Beleuchtungsvorrichtung A system for operating an electric lighting device |
| 05/29/2008 | DE102004037389B4 Verfahren zur Ansteuerung einer eine Leuchtstofflampe aufweisenden Last zur Optimierung des Zündvorganges A method for driving a fluorescent lamp having a load to optimize the ignition |
| 05/29/2008 | DE102004037388B4 Verfahren zur Detektion eines Nicht-Nullspannungsschaltbetriebs eines Vorschaltgeräts für Leuchtstofflampen und Vorschaltgerät A method for detecting a non-zero voltage switching operation of a ballast for fluorescent lamps and control gear |
| 05/28/2008 | EP1926351A1 Driving circuit of surface light source and method of driving the same |
| 05/28/2008 | EP1925189A1 Method and apparatus for operating very high pressure short arc discharge lamps |
| 05/28/2008 | EP1707034B1 High-efficiency single-ended forward-flyback electronic driver for barrier discharge lamps |
| 05/28/2008 | CN201066952Y A luminescent source brightness control system |
| 05/28/2008 | CN201066951Y LCD screen backlight lamp control system |
| 05/28/2008 | CN201066943Y Intelligent controller for intercrossed signal lamp without phase restraint |
| 05/28/2008 | CN201066056Y Lighting apparatus |
| 05/28/2008 | CN101189919A Circuit arrangement for operating a discharge lamp having temperature compensation |
| 05/28/2008 | CN101189704A Fluorescent lamp, backlight unit, and liquid crystal television |
| 05/28/2008 | CN101189692A Coil component and display device using same |
| 05/28/2008 | CN101188898A Driving circuit and method for multi-lamps |
| 05/28/2008 | CN101188897A A device for lighting electric light source via multi-channel output |
| 05/28/2008 | CN101188896A Inverter circuit and backlight assembly having the same |
| 05/28/2008 | CN101188895A Multi-tube current equalization device |
| 05/28/2008 | CN101187459A Quasimolecule light irradiator |
| 05/28/2008 | CN100391315C Power supply unit and used current converter |
| 05/28/2008 | CN100391314C Multiple lamp tube driving system |
| 05/28/2008 | CN100390923C 金属卤化物灯 Metal halide lamp |
| 05/28/2008 | CN100390619C Liquid crystal display device |
| 05/27/2008 | US7378804 Ballast for a discharge lamp with integrated control circuit for controlling switching element of dc power supply and inverter circuit |
| 05/27/2008 | US7378803 Igniting pulse booster circuit |
| 05/27/2008 | US7378801 Driving circuit for inverter |
| 05/27/2008 | US7377658 System and method for automated projector lamp management |
| 05/22/2008 | WO2008059769A1 Electric discharge lamp operating device |
| 05/22/2008 | WO2008059764A1 Discharge lamp lighting apparatus |
| 05/22/2008 | WO2008059677A1 Discharge lamp lighting apparatus |
| 05/22/2008 | WO2008059639A1 Electrode part, light source, illuminating device, and liquid crystal display |
| 05/22/2008 | WO2008059308A1 Electronic circuit means for increasing the ability of fluorescent lamps to be dimmed using standard dimmers |
| 05/22/2008 | WO2008058994A1 Low-pressure discharge lamp and method for operating a low-pressure discharge lamp |
| 05/22/2008 | WO2008058978A1 Illumination system and projection device |
| 05/22/2008 | WO2008058916A1 Lamp with an operating monitor and operating monitor for a lamp |
| 05/22/2008 | WO2007138553A3 Lamp driving circuit |
| 05/22/2008 | WO2007030610A8 Motion picture projector with electrodeless light source |
| 05/22/2008 | US20080116824 Two-End Driven Lamp Controlling Device |
| 05/22/2008 | US20080116823 Current-balancing apparatus for lamps |
| 05/22/2008 | US20080116821 Electronic circuit for operating a plurality of gas discharge lamps at a common voltage source |
| 05/22/2008 | US20080116820 High-Pressure Discharge Lamp Lighting Device |
| 05/22/2008 | US20080116819 Liquid crystal display device |
| 05/22/2008 | US20080116817 Controlling apparatus for controlling a plurality of led strings and related light modules |
| 05/21/2008 | EP1924129A2 Lamp driving circuit and display apparatus having the same |
| 05/21/2008 | EP1924128A2 High frequency electronic ballast for high intensity discharge lamps and improved drive method therefor |
| 05/21/2008 | EP1922906A1 Easy in-easy out starter |
| 05/21/2008 | DE102006054512A1 Light source operating method for lamp, involves detecting operating time of light source by lamp operating device, and determining reference power output based on detected time and preset curve and/or function in independent manner |
| 05/21/2008 | DE102006054332A1 Lampe mit einem Betriebsmonitor und Betriebsmonitor für eine Lampe Lamp with a monitor mode and monitor mode for a lamp |
| 05/21/2008 | DE10051334B4 Struktur einer mikrowellengespeisten elektrodenlosen Lampe Structure of a microwave powered electrodeless lamp |
| 05/21/2008 | CN201063943Y Dual-power automatic switchover type high-strength air discharge lamp (HID) ballast |
| 05/21/2008 | CN201063942Y Complete digital stepless light modulation low-voltage lighting controller |
| 05/21/2008 | CN201063941Y Energy-saving light modulation circuit structure for fluorescent lamp |
| 05/21/2008 | CN201063940Y Light adjustable bulb with self-carried vernier knob |
| 05/21/2008 | CN201063939Y Electricity-limiting control circuit |
| 05/21/2008 | CN201063938Y Brightness control circuit and display device provided with the circuit |
| 05/21/2008 | CN201063937Y Liquid crystal screen brightness control circuit and liquid crystal device provided with the circuit |
| 05/21/2008 | CN201063936Y Single fire body-sensing switch for energy-saving lamp |
| 05/21/2008 | CN201063935Y Electronic energy-saving lamp |
| 05/21/2008 | CN201063934Y Power line communication based road lamp electricity-saving control system |
| 05/21/2008 | CN201063933Y Audio modulation color lamp controller |
| 05/21/2008 | CN201063932Y Fluorescent lamp ballast and glow starter |
| 05/21/2008 | CN201063931Y Active filter arrangement for light adjustable fluorescent lamp electronic ballast |
| 05/21/2008 | CN201063930Y Non-magnet ring electronic ballast and fluorescent lamp using the same |
| 05/21/2008 | CN201063929Y Gas discharge lamp controller |
| 05/21/2008 | CN201063928Y Manufacturing equipment abnormality automatic detection real-time reporting device |
| 05/21/2008 | CN201063927Y Lighting protection power-saving device |
| 05/21/2008 | CN201063926Y Back light source driving circuit and LCD device |
| 05/21/2008 | CN201063925Y T5 fluorescent lamp for replacing T8 fluorescent lamp |
| 05/21/2008 | CN201063924Y Ignition starting equipment of ballast |
| 05/21/2008 | CN201063923Y Electronic ballast with connection terminal on housing |
| 05/21/2008 | CN201063922Y Energy-saving lamp with inserting-connecting type electronic ballast |
| 05/21/2008 | CN201063921Y Externally positioned type fast connection replacing device |