Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
---|
12/21/2005 | EP1606978A1 System for controlling and regulating continuously the luminous flow of every single lamp derived on a parallel line |
12/21/2005 | EP1606679A2 High voltage offset detection circuit and method |
12/21/2005 | CN2747818Y Adjustable highting ballast circuit having strip lamp resistance feedback net |
12/21/2005 | CN1711807A Power supply apparatus, backlight assembly and liquid crystal display apparatus having the same |
12/21/2005 | CN1711806A Circuit arrangement for operating a high pressure discharge lamp |
12/21/2005 | CN1711805A Circuit arrangement for operating a high pressure discharge lamp |
12/21/2005 | CN1711006A DC type fluorescent lamp light-regulator |
12/20/2005 | US6977642 Back light and liquid crystal display |
12/20/2005 | US6977472 Electrodeless self-ballasted fluorescent lamp and discharge lamp operating device |
12/18/2005 | CA2508128A1 Parallel power supply system for low voltage devices |
12/15/2005 | WO2005120138A1 Method and circuit arrangement for operating a high-pressure gas discharge lamp |
12/15/2005 | WO2005120137A1 Flashlamp drive circuit |
12/15/2005 | US20050276033 Regulating a light source using a light-to-frequency converter |
12/15/2005 | US20050275523 Flashing device for vehicle |
12/15/2005 | US20050275384 Capacitor charging circuit, flash unit, and camera |
12/15/2005 | US20050275357 Liquid crystal display and control method thereof |
12/15/2005 | US20050275356 Circuit with switch-off device for the operation of light sources |
12/15/2005 | US20050275355 Method and system for enhanced dimming resolution in a light ballast through use of multiple control frequencies |
12/15/2005 | US20050275353 Circuit for the operation of light sources |
12/15/2005 | DE202005013675U1 Electronic fluorescent lamp ballast for discharge lamps, has end-of-life monitoring circuit and differential amplifier, where reference current along with current at which asymmetrical performance is detected is applied to amplifier |
12/15/2005 | DE19916016B4 Leuchte und deren Verwendung für tiefe Temperaturen und Verfahren zum Umrüsten der Leuchte Light and their use at low temperatures and methods for converting the light |
12/15/2005 | CA2509876A1 Circuit with switch-off device for the operation of light sources |
12/15/2005 | CA2509874A1 Circuit for the operation of light sources |
12/14/2005 | EP1605734A1 Electronic ballast |
12/14/2005 | EP1605731A2 LED with load connected in parallel |
12/14/2005 | EP1605495A2 Lamp for mounting in or at a piece of storage forniture |
12/14/2005 | EP1604546A2 High intensity discharge lamp ballast circuit |
12/14/2005 | CN2746710Y Computer controller |
12/14/2005 | CN2746709Y Electric saver for lighting device |
12/14/2005 | CN2746708Y Large power fluorescent lamp electronic ballast |
12/14/2005 | CN1709014A Igniting pulse booster circuit |
12/14/2005 | CN1708203A Fluorescent/sodium lamp illumination power-saving device |
12/14/2005 | CN1707381A Power supply device and vehicle lamp |
12/14/2005 | CN1232158C Electronic system for generating and controlling light effects on projectors |
12/14/2005 | CN1231823C 电路布置 Circuit layout |
12/14/2005 | CN1231807C Electronic flash device for photograph film unit provided with camera lens |
12/13/2005 | US6975198 Inductive coil assembly |
12/13/2005 | US6975077 High intensity discharge lamp ballast apparatus |
12/13/2005 | US6975076 Charge pump circuit to operate control circuit |
12/13/2005 | US6975071 Voltage booster of headlight |
12/13/2005 | US6975069 Multi-phase gas discharge lamps |
12/13/2005 | CA2288874C Gas discharge lamp drive circuitry |
12/08/2005 | WO2005117505A1 Discharge lamp lighting apparatus |
12/08/2005 | WO2005117502A2 Simplified electronic ballast circuit and method of operation |
12/08/2005 | WO2005038828A3 A current sharing scheme and device for multiple ccf lamp operation |
12/08/2005 | US20050273237 Control method and control structure for lighting system |
12/08/2005 | US20050271376 Strobe light emitting apparatus and camera |
12/08/2005 | US20050269998 DC-AC converter and controller IC therefor |
12/08/2005 | US20050269976 LCD back light panel lamp connecting structure |
12/08/2005 | US20050269975 LCD back light panel lamp connecting structure |
12/08/2005 | US20050269974 Multi-phase input dimming ballast with flyback converter and method therefor |
12/08/2005 | US20050269973 Driving device of light source for display device |
12/08/2005 | US20050269972 Ballast with end-of-lamp-life protection circuit |
12/08/2005 | US20050269970 Display device and driving device of light source for display device |
12/08/2005 | US20050269969 Driver for a gas discharge lamp |
12/08/2005 | US20050269968 Power supply device and vehicle lamp |
12/08/2005 | US20050269966 High pressure discharge lamp |
12/08/2005 | US20050269964 Multi-phase input ballast with dimming and method therefor |
12/08/2005 | US20050269963 Lighting apparatus for high intensity discharge lamp |
12/08/2005 | US20050269480 Multifunction multi-spectrum signalling device |
12/08/2005 | DE102004022571A1 Elektronisches Vorschaltgerät für eine Lampe Electronic ballast for a lamp |
12/07/2005 | EP1602879A2 Headlamp for vehicles with a shielding housing for the ballast unit of the discharge lamp |
12/07/2005 | EP1602168A1 A dc-dc converter with reduced surge voltage and an electronic ballast including the converter for a discharge lamp |
12/07/2005 | EP1268173B1 Apparatus and system for the production of plastic lenses |
12/07/2005 | CN1706200A Image projector with intensity-controlled light source |
12/07/2005 | CN1705421A Digital remote controlled dimmer switch capable of controlling energy-saving lamp |
12/06/2005 | US6972531 Method for operating at least one low-pressure discharge lamp |
12/06/2005 | US6972529 Switch mode power supply for a gas discharge lamp |
12/06/2005 | US6972523 Metal halide lamp control device with linear control power transducer |
12/06/2005 | US6972415 Fluid treatment system with UV sensor and intelligent driver |
12/06/2005 | CA2242028C Universal power supply for discharge lamps |
12/06/2005 | CA2211467C Inverter for the power supply of discharge lamps with means for improving the power factor |
12/01/2005 | WO2005072454A3 Method and apparatus for dimming control of electronic ballasts |
12/01/2005 | WO2004103026A3 Digital electronic ballast control apparatus and method |
12/01/2005 | US20050264516 Apparatus and method for driving lamp of liquid crystal display device |
12/01/2005 | US20050264243 Ballast for a discharge lamp having a continuous-operation control circuit |
12/01/2005 | US20050264241 Apparatus for controlling CCFL and method for operating the same |
12/01/2005 | US20050264240 Simplified electronic ballast circuit and method of operation |
12/01/2005 | US20050264239 Cold cathode fluorescent lamp drive apparatus and method |
12/01/2005 | US20050264237 Lighting device for discharge lamp |
12/01/2005 | US20050264236 Apparatus and method for use in triggering a flash lamp |
12/01/2005 | US20050264225 Deriving power for an external device from a fluorescent light power source |
12/01/2005 | US20050264224 Fluorescent light power source for supplying power to an external device |
12/01/2005 | US20050264220 Power source mounted to a fluorescent light |
12/01/2005 | US20050264217 Controller for power protection |
12/01/2005 | DE102005011189A1 Transformer drive circuit for display backlight drive, has two phased signals operating two N-MOSFETS to give floating level voltage |
12/01/2005 | DE102004022555A1 Vorrichtung und Verfahren zum Synchronisieren einer Blinkerfrequenz mit einer Zentralblinkfrequenz Apparatus and method for synchronizing a flasher frequency with a central flashing frequency |
12/01/2005 | CA2507130A1 Controller for power protection |
11/30/2005 | EP1601237A2 Ballast with control circuit for the permanent operation of a discharge lamp |
11/30/2005 | EP1599775A2 Digital lighting ballast oscillator |
11/30/2005 | CN2744122Y Intelligent controller for lamplight of motor vehicle |
11/30/2005 | CN2744121Y Charge pump type electronic ballast |
11/30/2005 | CN2744120Y Resonant inverter circuit for reference electronic ballast |
11/30/2005 | CN1703135A Ballast for discharge lamp with continuous operation regulating circuit |
11/30/2005 | CN1703134A Cold cathode fluorescent lamp drive circuit |
11/30/2005 | CN1703133A Lighting device for high pressure discharge lamp |
11/30/2005 | CN1703132A Driving voltage controller for light-emitting source |
11/30/2005 | CN1702539A Illuminating device for photographing and camera |
11/30/2005 | CN1702519A Brightness control device of LCD and method thereof |
11/30/2005 | CN1702500A Apparatus and method for driving lamp of liquid crystal display device |