Patents
Sitemap › H05 - Electric techniques not otherwise provided for › H05B - Electric heating; Electric lighting not otherwise provided for › H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps
Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100)
09/2003
09/25/2003US20030178952 Cold cathode-ray tube driving method
09/25/2003US20030178951 Low noise backlight system for use in display device and method for driving the same
09/25/2003US20030178943 Microwave energized plasma lamp with solid dielectric waveguide
09/25/2003US20030178356 Removable closure assembly for a water treatment system
09/24/2003EP1346612A2 Improved control circuit for power factor corrected electronic ballasts and power supplies
09/24/2003EP1346611A1 Ballast circuit arrangement
09/24/2003EP0997059B1 Discharge lamp
09/24/2003EP0960433B1 High-pressure discharge lamp
09/24/2003CN2575931Y Direct-acting gas combustion pressure regulator
09/24/2003CN2575930Y Electric supercharged environment protection single and double cylinder diesel engine
09/24/2003CN1444772A Plasma lamp with dielectric waveguide
09/24/2003CN1444430A Firing circuit for discharge lamp
09/24/2003CN1444429A Switch equipment for high-pressure discharge lamp ignition
09/24/2003CN1444353A Method for makidng communication with lamp drive device
09/24/2003CN1444332A Single-stage converter of inverter for LCD backlight
09/23/2003US6624600 Lamp power measurement circuit
09/23/2003US6624599 Compact single-stage electronic ballast circuit for emergency lighting applications
09/23/2003US6624598 Ballast and method of feeding a fluorescent lamp
09/23/2003US6624596 Device for lighting discharge lamp
09/23/2003US6624594 Discharge lamp lighting circuit
09/23/2003US6624593 Dimmable ballast for electrodeless fluorescent lamps
09/23/2003US6624585 Ultra-compact igniter circuit for arc discharge lamp
09/23/2003US6624581 Circuit for driving an alternating current high pressure gas discharge lamp for a motor vehicle
09/23/2003US6624554 Light fittings for retrofitting large-diameter inductive fluorescent lamps to smaller-diameter electronic T5-lamps
09/18/2003WO2003077616A1 Hybrid device for the step regulation of the brightness of a lamp
09/18/2003WO2003077615A1 Ignition circuit for a high pressure discharge lamp
09/18/2003WO2003077614A1 Ballast for a discharge lamp
09/18/2003WO2003077613A1 Electric circuit for igniting a discharge lamp, and electric component module and discharge lamp incorporating such an electric circuit
09/18/2003WO2003077612A1 Circuit and method of igniting a high-pressure lamp
09/18/2003WO2003077611A1 Ballast comprising switched inductance
09/18/2003US20030174139 Method for communicating with an operating device for lamps
09/18/2003US20030173912 Circuit arrangement for igniting high pressure discharge lamps
09/18/2003US20030173911 Discharge lamp lighting device
09/18/2003US20030173910 Discharge lamp lighting apparatus, light source apparatus and projection type display apparatus
09/18/2003US20030173909 Power supply apparatus for light source
09/18/2003US20030173908 Lamp power measurement circuit
09/18/2003US20030173907 Compact single-stage electronic ballast circuit for emergency lighting applications
09/18/2003US20030173906 Energy-saving dimming apparatus
09/18/2003DE20310123U1 Device - module is for installation in lights with luminous material lamps 58W or 36W, comprises current choke with tapping arrangement for lowering lamp current
09/17/2003EP1345479A2 Electric discharge lamp device
09/17/2003EP1345478A2 Circuit arrangement for igniting high-pressure discharge lamps
09/17/2003EP1345427A1 Method for communication with a electric lamp operating device
09/17/2003EP1345311A2 High power-factor electronic reactor for discharge lamps
09/17/2003EP1344430A1 Ballast and method of feeding a fluorescent lamp
09/17/2003EP1050198B1 A method and device for operating electronic ballasts for high intensity discharge (hid) lamps
09/17/2003CN2574331Y Automatic ceramic transformer step-up ratio/frequency curve tracking circuit
09/17/2003CN2574330Y Fluorescent lamp preheating starting device
09/17/2003CN1443032A Power supply equipment of illuminating system using microwave
09/17/2003CN1443031A Working circuit for discharging lamp having life fermination early stage identification
09/17/2003CN1443030A Life termination identification using integrated helical path inquiry
09/17/2003CN1442947A D.C. Voltage conversion electric appliance
09/17/2003CN1442879A Microwave energy illuminating device
09/17/2003CN1121707C Illumination unit and liquid crystal display device
09/16/2003US6621670 Ground fault protection circuit for discharge tube lighting circuit
09/16/2003US6621239 Method and apparatus for controlling the temperature of a multi-parameter light
09/16/2003US6621238 Power factor correction circuit with faster bus charging rate during startup
09/16/2003US6621237 Gas-discharge lamp lighting apparatus with optimized circuit configuration
09/16/2003US6621236 Discharge lamp lighting device and illumination device
09/16/2003CA2307419C Electrodeless discharge lamp
09/16/2003CA2109785C Dimmer and ground fault interruption for solid state neon supply
09/12/2003WO2003075619A1 Circuit arrangement
09/12/2003WO2003075618A1 Electronic circuit and method of supplying energy to a high-pressure gas-discharge lamp
09/12/2003CA2421599A1 Circuit arrangement for igniting high-pressure discharge lamps
09/12/2003CA2421547A1 Method for communicating with an operating device for lamps
09/11/2003US20030169604 Single stage converter in LCD backlight inverter
09/11/2003US20030169000 Discharge lamp lighting circuit
09/11/2003US20030168999 Electric discharge lamp device
09/11/2003US20030168997 Ballast circuit for operating a discharge lamp
09/11/2003US20030168995 Eol detection with integrated filament interrogation
09/11/2003US20030168994 Operating circuit for a discharge lamp with early EOL detection
09/11/2003US20030168988 Phase-controlled, multi-electrode type of ac discharge light source
09/10/2003EP1343360A2 Circuit for operating a discharge lamp with early EOL recognition
09/10/2003EP1343359A2 EOL-detection with integrated electrode interrogation
09/10/2003EP1343358A1 Constant frequency converter
09/10/2003EP1343135A2 Brightness control device and display device with duty ratio control of a lighting device
09/10/2003EP1342393A1 Digital ballast
09/10/2003EP1300055A4 Integrated circuit for lamp heating and dimming control
09/10/2003EP0925710B1 Electronic ballast
09/10/2003EP0919112B1 Centralized power reducing device, particularly for lighting installations
09/10/2003CN2572715Y Electronic inverter for dc fluorescent lamp
09/10/2003CN2572714Y Electronic driving circuit for electrodeless fluorescent lamp
09/10/2003CN2572713Y Electronic ballast for high-pressure sodium lamp
09/10/2003CN2572712Y Combined electronic ballast structure for aquarium lamp set
09/10/2003CN1441456A Metal halogen lamp and lighting system
09/10/2003CN1121132C Electronic ballast for high-pressure discharge lamp
09/09/2003US6618231 Neon sign transformer module and receptacle
09/09/2003US6617809 Discharge lamp lighting circuit
09/09/2003US6617808 Discharge-lamp lighting circuit
09/09/2003US6617807 Discharge lamp lighting circuit for a plurality of discharge lamps
09/09/2003US6617805 Ballast control IC with power factor correction
09/09/2003US6617793 Resonator for microwave lighting apparatus and manufacturing method thereof
09/09/2003US6617560 Lighting control circuit including LED for detecting exposure to radiation
09/05/2003CA2420841A1 Operating circuit for a discharge lamp with early eol detection
09/05/2003CA2420816A1 Eol detection with integrated filament interrogation
09/04/2003WO2003073799A1 Microwave powered uv lamp with improved rf gasket arrangement
09/04/2003WO2003073244A2 Frequency divider
09/04/2003US20030165335 Slave flash controlling device and slave flash device
09/04/2003US20030164815 Back light and liquid crystal display
09/04/2003US20030164688 Power supply apparatus of lighting system using microwave
09/04/2003DE20309253U1 Power supply system for a low voltage fluorescent electrical lighting system has reduced power consumption
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