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)
10/2008
10/28/2008US7443113 Software controlled electronic dimming ballast
10/28/2008US7443108 Apparatus for driving a plurality of lamps
10/28/2008US7443107 Method and apparatus for controlling a discharge lamp in a backlighted display
10/28/2008US7443106 Circuit with switch-off device for the operation of light sources
10/28/2008US7443103 High pressure lamp with lamp flicker suppression and lamp voltage control
10/28/2008US7443102 Energy-conserving devices of illumination systems
10/23/2008WO2008126341A1 Dielectric barrier discharge lamp lighting device
10/23/2008WO2007096263A8 Step-up driver with minimal switching frequency
10/23/2008US20080259603 LED-element
10/23/2008US20080258651 Method and system for open lamp protection
10/23/2008US20080258647 Dimming Circuit for Led Lighting Device With Means for Holding Triac in Conduction
10/23/2008US20080258645 Backlight inverter and liquid crystal display using the same
10/23/2008US20080258644 Load Control Device Having A Modular Assembly
10/23/2008US20080258643 Method for driving alternate current of light emitting diode and operating voltage thereof
10/23/2008US20080258642 Lamp base with electrical device recharging receptacle and method
10/23/2008US20080258641 Power Supply For Semiconductor Light Emitting Device And Illuminating Device
10/23/2008US20080258639 Phase shift circuit and backlight unit having the same
10/23/2008US20080258638 Method and Circuit Arrangement for Operating a High-Pressure Gas Discharge Lamp
10/23/2008US20080258631 Light-adjusting and current-limiting control circuit
10/23/2008US20080258622 High-pressure discharge lamp, lighting method and lighting device for high-pressure discharge lamp, high-pressure discharge lamp device, and lamp unit, image display device and headlight device
10/23/2008DE102007018974A1 Electronic control unit operating method for motor vehicle light or motor vehicle headlamp, involves connecting load to electronic control unit, and obtaining power required for operation of control unit and load from signal
10/23/2008DE102004037390B4 Ansteuerschaltung für eine Leuchtstofflampe mit einer Diagnoseschaltung und Verfahren zur Diagnose einer Leuchtstofflampe A drive circuit for a fluorescent lamp with a diagnostic circuit and method for the diagnosis of a fluorescent lamp
10/22/2008EP1983806A1 Multiple-light discharge-lamp lighting apparatus
10/22/2008EP1982564A1 Method for modulating electric power to a lamp and device implementing this method
10/22/2008EP1360438B1 Apparatus and methods relating to wavelength conditioning of illumination
10/22/2008CN201138889Y Novel driving device for flat light source
10/22/2008CN201138888Y Electric power of high-power lamp
10/22/2008CN201138887Y Driving apparatus of multiple strip lamp
10/22/2008CN201138886Y Energy saving light source igniting circuit
10/22/2008CN201138885Y Internally starting high-pressure sodium vapor lamp
10/22/2008CN201138655Y High-power integrated self-ballasting cold cathode fluorescent lamp
10/22/2008CN201138404Y Wide temperature zone metal reinforced high brightness specialized LCD
10/22/2008CN101291560A Light modulation control circuit applied to lighting control circuit of single wire
10/22/2008CN101291559A Trigger of compact high-intensity discharge lamp and circuit board thereof
10/22/2008CN101291558A Light emitting element driver and control method therefor
10/22/2008CN101291117A Inverter, back light assembly and display device possessing same
10/22/2008CN101290863A Electrodeless lamp
10/22/2008CN101290860A High-intensity discharge lamp of compact type with bulb holder
10/22/2008CN100428868C Lighting device of high-temsion discharge amp and lighting device
10/22/2008CN100428050C Light shading structure of projector lamp
10/22/2008CN100428015C Planar light source device and liquid crystal display apparatus having the same
10/21/2008US7441160 File system for a stage lighting array system
10/21/2008US7439945 Light emitting diode driver circuit with high-speed pulse width modulated current control
10/21/2008US7439688 Discharge lamp lighting circuit with power control
10/21/2008US7439686 Discharge-lamp lighting apparatus
10/21/2008US7439685 Current balancing technique with magnetic integration for fluorescent lamps
10/21/2008US7439684 Inductive lamp assembly
10/21/2008US7439683 Backlighting system for display screen
10/21/2008US7439682 Current driving circuit for inductive loads
10/16/2008WO2008123932A2 El lamp driver with plural outputs
10/16/2008WO2008123274A1 Apparatus for lighting high-intensity discharge lamp
10/16/2008WO2008122324A1 Circuit for coil heating
10/16/2008US20080252796 Liquid crystal television and backlight unit
10/16/2008US20080252236 Method and Device Capable of Controlling Soft-start Dynamically
10/16/2008US20080252235 Electronic Control Gear and Method of its Use
10/16/2008US20080252233 Universal Line Voltage Dimming Method and System
10/16/2008US20080252231 Light source driving device
10/16/2008US20080252230 Imaging apparatus, strobe device, and charging-control method
10/16/2008US20080252228 Hid Ballast
10/16/2008US20080252227 Method and Circuit for Driving Gas Discharge Lamps Using a Single Inverter
10/16/2008US20080252225 Dielectric Barrier Discharge Lamp Lighting Device
10/16/2008US20080252224 Ballast with Socket-To-Fixture Voltage Limiting
10/16/2008US20080252222 Systems and methods for driving light-emitting diodes
10/16/2008US20080252221 Protection device for discharge lamp inverter
10/16/2008DE102007017497A1 Mischlichtlampe Blended lamp
10/16/2008CA2682936A1 System and method for providing adjustable ballast factor
10/15/2008EP1981313A1 Diagnostic system for external lighting devices of a vehicle
10/15/2008EP1981062A1 Dielectric barrier discharge lamp, backlight, and liquid crystal display
10/15/2008EP1979734A1 Portable device for the quality control of products
10/15/2008EP1458223B1 Electronic ballast for high-pressure discharge lamp
10/15/2008CN201134970Y Bi-frequency pulsewidth adjustable light regulating electronic ballast
10/15/2008CN201134969Y Composite constant-voltage bi-powered energy saving electrical induction ballast
10/15/2008CN201134968Y Automatic control electronic ballast for florescent lamp
10/15/2008CN201134967Y General type electronic ballast
10/15/2008CN201134966Y DC fluorescent lamp without radiation and stroboscopic effect
10/15/2008CN201134965Y Energy-saving lamp for machine tool
10/15/2008CN201134964Y Electroluminescence energy saving circuit for daylight lamp tube
10/15/2008CN201134963Y Jump bulb for energy-saving lamp starter
10/15/2008CN201134962Y Jump bulb for florescent lamp starter
10/15/2008CN201134961Y Starter of frequency vibration type insect killing lamp
10/15/2008CN201134760Y Single-phase intelligent power-saving device
10/15/2008CN201133991Y LCD device backlight module possessing multiple phase fall lamp tube group
10/15/2008CN201133629Y Compact and easily radiating large power energy conserving lamp electric ballast
10/15/2008CN101288346A Electronic ballast device and method for operating an electric lamp
10/15/2008CN101288345A Electronic ballast for discharge lamp, lighting fixture employing that electronic ballast, and lighting system equipped with that lighting fixture
10/15/2008CN101288344A Method for operating a gas discharge lamp
10/15/2008CN101288263A Wireless building automation and control network, digital ballast and wireless control device
10/15/2008CN101287324A Distant measurement, communication, control method supporting illumination of ZigBee road lamp and electronic ballast
10/15/2008CN101287323A Auto-excitation type electronic ballast with over-temperature protection function
10/15/2008CN101287322A Preheating and starting circuit of florescent lamp based on auto-excitation type electric ballast
10/15/2008CN101287321A Ballast with socket-to-fixture voltage limiting
10/15/2008CN101287320A Light source driving device
10/15/2008CN101287319A Energy-saving florescent lamp
10/15/2008CN101287318A Light source driving device with abnormity detecting function
10/15/2008CN101287317A Starter for high-frequency florescent lamp and florescent lamp preheating circuit adopting the starter
10/15/2008CN100426647C DC/AC converter and its controller IC
10/15/2008CN100426124C Camea flash
10/14/2008US7436133 LCD back light panel lamp connecting structure
10/14/2008US7436131 Thermal protection for lamp ballasts
10/14/2008US7436130 Cold-cathode tube lighting device for use in a plurality of cold-cathode tubes lit by two low-impedance power sources
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