Patents
Sitemap › H05 - Electric techniques not otherwise provided for › H05B - Electric heating; Electric lighting not otherwise provided for › H05B 37 - Circuit arrangements for electric light sources in general
Patents for H05B 37 - Circuit arrangements for electric light sources in general (57,776)
10/2005
10/25/2005US6958897 Electrical load drive control apparatus and electrical load drive control method
10/25/2005US6958584 Lamp driving apparatus and method for driving lamp
10/25/2005US6958583 AC voltage control circuit
10/25/2005US6958582 Lamp current control circuit
10/25/2005US6958581 High-intensity discharge lamp operating device and method for controlling the high-intensity discharge lamp
10/22/2005CA2751077A1 Ultraviolet device
10/20/2005WO2005098311A2 Light panel illuminated by light emitting diodes
10/20/2005WO2005039239A3 Ballast protecting device
10/20/2005US20050234694 Hardware modeling of LED relative brightness
10/20/2005US20050232289 System bridge and timeclock for RF controlled lighting systems
10/20/2005US20050231693 Projector and optical device
10/20/2005US20050231134 Remote controlled intelligent lighting system
10/20/2005US20050231133 LED power control methods and apparatus
10/20/2005US20050231132 High intensity discharge strobe lamp assembly and method for producing attenuated-EMI strobe illumination
10/20/2005US20050231128 Method and apparatus for the zonal transmission of data using building lighting fixtures
10/20/2005US20050231127 Boost controller capable of step-up ratio control
10/20/2005US20050231126 Image forming apparatus
10/20/2005US20050231125 Lighting installation with regulation of light emission devices
10/20/2005US20050231121 Device and method for sign illumination
10/20/2005DE202005012666U1 Electrical room lighting unit has a number of coloured light emitting diodes around a centre bulb
10/19/2005EP1587347A2 Device for controlling a plurality of lighting units
10/19/2005CN2735708Y A mobile station and equipment for controlling illuminator of mobile station
10/19/2005CN2735707Y Improved diode array lamp
10/19/2005CN2735660Y Power conversion switch
10/19/2005CN2735609Y Remote control coded two-way dimmer switch
10/19/2005CN2735494Y Inverter controller with automatic brightness adjusting circuit
10/19/2005CN2735157Y 太阳能灯 Solar Lights
10/19/2005CN1684567A Semiconductor lighting control system
10/19/2005CN1683971A Driving unit of fluorescent lamp and its driving method
10/19/2005CN1683820A AC LED lighting lamp
10/19/2005CN1683818A Portable self-aid type lighting device
10/18/2005US6956494 Signal lamps and apparatus
10/18/2005US6956490 Projector with consumable component having memory device
10/18/2005US6956408 Drive device for a light-emitting component
10/18/2005US6956337 Temperature-to-color converter and conversion method
10/18/2005US6955435 Image projection lighting device
10/13/2005WO2005096678A1 Illumination control circuit
10/13/2005WO2005096677A1 Device for lighting a room
10/13/2005WO2005096676A1 Ceremonial installation
10/13/2005WO2005096242A2 Apparatus and method of power control
10/13/2005WO2005094167A2 Illumination system and method for a mobile computing device
10/13/2005US20050225983 Illumination system and method for a mobile computing device
10/13/2005US20050225959 Versatile lighting apparatus and associated kit
10/13/2005US20050225757 Method for controlling the luminous flux spectrum of a lighting fixture
10/13/2005US20050225265 PFC and ballast control IC
10/13/2005US20050225261 Primary side current balancing scheme for multiple CCF lamp operation
10/13/2005US20050225259 LED buck regulator control IC
10/13/2005US20050225258 Microwave lamp power supply that can withstand failure in high voltage circuit
10/13/2005US20050225257 Applications of halogen convertor control IC
10/13/2005US20050225256 Method and apparatus for lamp heat control
10/13/2005DE202005011950U1 Electronic lamp ballast device e.g. for building lighting management system, uses heating circuit as voltage supply for external terminal
10/13/2005DE202005008904U1 Electronic candle comprises a body, a shade, primary and secondary elements, and a circuit board
10/13/2005DE202005008080U1 Device for sporadic advertisement message display on mirror surface, has electronic control for operating a number of light sources
10/13/2005DE102004014192A1 Electrical power controller to supply LED lighting elements uses active measurement of supply current used by a controller
10/13/2005DE102004010942B3 Control device and control process for the control of luminaries features an electrical circuit that reduces the perception of the brightness change
10/13/2005DE102004007451A1 An emergency electrical supply for fluorescent lighting from a DC source has a switching arrangement including detection means for the supply waveform
10/13/2005CA2561439A1 Ceremonial installation
10/12/2005EP1585077A2 Device and method for monitoring movement within a home
10/12/2005CN2733819Y Pulse xenon lamp with driving power supply
10/12/2005CN2733814Y Energy-saving electronic light fitting
10/12/2005CN2733813Y Charging type night lamp
10/12/2005CN2733812Y Energy saving LED lighting circuit
10/12/2005CN2732454Y Laser aiming head for electric cutting tool
10/12/2005CN1681367A Microwave lamp power supply that can withstand failure in high voltage circuit
10/12/2005CN1681366A Bus controller of light external transparent illuminating node in building
10/12/2005CN1681139A Light-emitting element driving circuit
10/11/2005US6953251 Projector and optical device
10/06/2005WO2005094136A1 Half-level light signaling device
10/06/2005WO2005094135A1 Half-level light signaling device
10/06/2005WO2005093916A1 Laser element driving apparatus
10/06/2005US20050219872 Power factor correction control methods and apparatus
10/06/2005US20050219860 Light panel illuminated by light emitting diodes
10/06/2005US20050219838 Image projection lighting devices with visible and infrared imaging
10/06/2005US20050218970 Driver circuit
10/06/2005US20050218870 Power control methods and apparatus
10/06/2005US20050218839 Dimmable fluorescent lamp package
10/06/2005US20050218838 LED-based lighting network power control methods and apparatus
10/06/2005US20050218836 Current supply for luminescent diodes
10/06/2005US20050218835 Light-emitting element driving circuit
10/06/2005US20050218831 Ballast with circuit for detecting and eliminating an arc condition
10/06/2005US20050218830 Ballast with output ground-fault protection
10/06/2005US20050218829 Method for protecting a ballast from an output ground-fault condition
10/06/2005US20050218828 Converter circuit with coupled inductances
10/06/2005US20050218817 Display device
10/06/2005US20050217892 Electronic device provided with a power supply cord securement structure
10/06/2005DE202005008781U1 Television or PC screen back lighting unit, comprises a light reflecting screen, film or board
10/06/2005DE102005012637A1 Elektrische Energieversorgungsvorrichtung mit Eingangsschalterkreis Electrical power supply device with input switching circuit
10/06/2005DE102005004828A1 Treiberschaltung für Leuchtdiode und optischer Sender zur Verwendung in einer Glasfaserverbindung A drive circuit for light emitting diode and an optical transmitter for use in a fiber optic link
10/06/2005CA2503981A1 Converter circuit with coupled inductances
10/05/2005EP1583402A1 Control of lighting devices with a central AC/DC cascaded converter
10/05/2005EP1583401A1 Ceremonial device
10/05/2005EP1583067A1 Display device and control method thereof
10/05/2005CN2731903Y Illumination management system
10/05/2005CN2731628Y Intelligent emergency escape marking light able to change indication direction
10/05/2005CN1679376A Master-slave oriented two-way RF wireless lighting control system
10/05/2005CN1678158A Highly efficient energy-saving semiconductor plane integrated light-source module
10/05/2005CN1678157A Method for regulating and controlling LED lamp lightness
10/05/2005CN1677905A Light emitting diode driving circuit and optical transmitter for use in optical fiber link
10/05/2005CN1677861A Driver circuit
10/05/2005CN1677816A Boost controller capable of step-up ratio control
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