Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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11/21/2012 | CN102048516B Light source device and failure detection method for endoscope |
11/21/2012 | CN101755488B Electric-discharge lamp lighting device and lighting apparatus |
11/21/2012 | CN101690409B Discharge lamp operating device, illumination device, and liquid crystal display device |
11/21/2012 | CN101548586B Inverter control circuit, light emitting device employing the same and display |
11/21/2012 | CN101529991B Circuit arrangement and method for starting a discharge lamp |
11/21/2012 | CN101527996B Discharge lamp lighting circuit |
11/21/2012 | CN101466193B Method for monitoring lighting lamp power factor compensation capacitance fault |
11/21/2012 | CN101457875B Light source device, projector and driving method of discharge lamp |
11/20/2012 | USRE43808 Phase shift modulation-based control of amplitude of AC voltage output produced by double-ended DC-AC converter circuitry for powering high voltage load such as cold cathode fluorescent lamp |
11/20/2012 | US8315561 Adaptive inductive power supply with communication |
11/20/2012 | US8314880 Photographic illumination device, image-capturing system, camera system and camera |
11/20/2012 | US8313211 Portable lamp bank and lens assembly for use therewith |
11/15/2012 | WO2012154671A1 Dimmable screw-in compact fluorescent lamp having integral electronic ballast circuit |
11/15/2012 | WO2012154639A1 Method and apparatus for determining a target light intensity from a phase-control signal |
11/15/2012 | WO2012151712A1 Improved programmed start circuit for ballast |
11/15/2012 | WO2012110961A3 Emergency lighting ballast device with a plurality of ballastoutputs for flexible lamp connection configurations |
11/15/2012 | US20120286695 Electric supply device |
11/15/2012 | US20120286693 Circuit Assembly and Method for Operating a Discharge Lamp |
11/15/2012 | US20120286692 Electron source |
11/15/2012 | US20120286689 Dimmable screw-in compact fluorescent lamp having integral electronic ballast circuit |
11/14/2012 | EP2523536A2 Bi-level lamp ballast |
11/14/2012 | EP2522205A2 Lamp end of life detection circuit |
11/14/2012 | EP2522204A2 Method for the optimized operation of a high-pressure discharge lamp |
11/14/2012 | CN202535623U Xenon long-arc lamp light source having automatic trigger function and multistage dimming function |
11/14/2012 | CN202535622U Electrodeless lamp high-frequency generating circuit with impedance matching circuit |
11/14/2012 | CN202535621U Reflection-type infrared timing corridor metal halide lamp |
11/14/2012 | CN202535620U Electronic ballast for high-pressure sodium lamp |
11/14/2012 | CN202535619U Universal xenon lamp trigger |
11/14/2012 | CN202535618U Modular radio remote control four-way lamp |
11/14/2012 | CN102781149A Emergency lighting circuit and emergency electronic ballast |
11/14/2012 | CN102781148A Bi-level lamp ballast |
11/14/2012 | CN101742795B Electronic ballast |
11/14/2012 | CN101561084B Integrated gas discharge lamp |
11/14/2012 | CN101437345B Low-voltage DC supply high-power short arc xenon lamp trigger |
11/14/2012 | CN101395972B Method of driving a discharge lamp, and driving unit |
11/14/2012 | CN101352105B Ripple reduction method for electronic ballasts |
11/14/2012 | CN101208999B Method and system for controling a luminaire |
11/13/2012 | US8310174 Lighting method and lighting apparatus for a high pressure discharge lamp, a high pressure discharge lamp apparatus, and a projection-type image display apparatus |
11/13/2012 | US8310171 Line voltage dimmable constant current LED driver |
11/13/2012 | US8310170 Circuit arrangement for controlling light emitting diodes |
11/13/2012 | US8310169 Power conversion driving circuit and fluorescent lamp driving circuit |
11/13/2012 | US8310168 Light source device and projector |
11/13/2012 | US8310160 Anti-arcing circuit for current-fed parallel resonant inverter |
11/13/2012 | US8308317 Surface light source structure of backlight module in a flat panel display |
11/13/2012 | US8308308 Device and method for driving discharge lamp, light source device, and projector that records an operation history of applied start-up pulses |
11/08/2012 | WO2012120435A3 A method of driving a gas-discharge lamp |
11/08/2012 | US20120280633 Two-wire dimmer circuit for a screw-in compact fluorescent lamp |
11/08/2012 | DE19626101B4 Schaltungsanordnung zum Starten und Betreiben einer Hochdruckentladungslampe Circuit arrangement for starting and operating a high pressure discharge lamp |
11/08/2012 | DE112009004860T5 Dimmersystem und Dimmverfahren Dimming system and dimming method |
11/08/2012 | DE102011050306B3 Inverter circuit of electronic ballast for gas discharge lamp, has three electronic switches that are connected in series, where branch node is provided between every two adjacent switches and are connected to lamp circuits |
11/07/2012 | EP2520138A2 Apparatus for driving a gas discharge lamp |
11/07/2012 | CN202524629U Electrodeless lamp with adjustable luminous intensity |
11/07/2012 | CN202524628U High-voltage light-on device |
11/07/2012 | CN202524627U Electronic energy-saving lamp ballast circuit |
11/07/2012 | CN202524626U Energy-efficient lead peak type ballast |
11/07/2012 | CN202524625U Electronic ballast |
11/07/2012 | CN202524624U Electronic energy-saving lamp ballast possessing heat protection and heat protection device |
11/07/2012 | CN202524595U LED lamp and energy-saving lamp combined lamp |
11/07/2012 | CN1846464B System and method for reducing flicker of compact gas discharge lamps at low lamp light output level |
11/07/2012 | CN102771191A Lamp assembly |
11/07/2012 | CN102769988A Brightening device for car-speed signal control HID (high intensity discharge) xenon lamp |
11/07/2012 | CN102769987A Electrodeless lamp system with solar maximum power tracking control |
11/07/2012 | CN102769986A Electronic ballast |
11/07/2012 | CN102769985A Drive unit of fluorescent tube and drive method of fluorescent tube |
11/07/2012 | CN102769984A Magnetic integrated transformer for high-frequency high-pressure sodium lamp electronic ballast and ballast |
11/07/2012 | CN102769983A High-pressure plasma light source module |
11/07/2012 | CN101951140B EMI (Electro-Magnetic Interference) filter of electrodeless fluorescent lamp with ultracrystalline filter coil CL+CL structure |
11/07/2012 | CN101707847B Surge overcurrent quick suppression circuit |
11/07/2012 | CN101702863B Frequency-modulation electronic ballast for dimmable fluorescent lamp |
11/07/2012 | CN101605422B Fluorescent lighting tube driving circuit |
11/07/2012 | CN101605421B Lamp lighting system |
11/07/2012 | CN101601331B 照明控制器 Lighting Controller |
11/07/2012 | CN101442868B Energy-saving electronic ballast |
11/07/2012 | CN101442867B Passive high power element circuit |
11/07/2012 | CN101437348B Method, system, control end and lamp holder end for regulating lamplight lightness |
11/07/2012 | CN101431850B Simple Buck circuit used for ceramic metallic halogen lamp electric ballast |
11/07/2012 | CN101253815B Starter circuit with hf damping element |
11/06/2012 | US8305014 Lighting control using scan and step change |
11/06/2012 | US8305010 Light-emitting diode lighting device with step-down chopper |
11/06/2012 | US8305009 Inverter driver and lamp driver using the same |
11/06/2012 | US8305008 Constant-current controller for LED light string |
11/06/2012 | US8305005 Integrated circuit for driving high-voltage LED lamp |
11/06/2012 | US8305004 Apparatus and method for constant power offline LED driver |
11/06/2012 | US8304998 Dimmable light generating device |
11/06/2012 | US8304994 Light collection system for an electrodeless RF plasma lamp |
11/06/2012 | CA2656151C Discharge lamp lighting device and light fixture |
11/01/2012 | WO2012149561A2 Multiple strike ballast for electrodeless lamp |
11/01/2012 | WO2012146877A1 Public lighting device |
11/01/2012 | WO2012146029A1 Preheating circuit applied to fluorescent lamp electronic ballast |
11/01/2012 | WO2012145972A1 High intensity discharge electronic ballast circuit, electronic ballast and high intensity discharge lamp |
11/01/2012 | WO2012145927A1 Power compensation method for ceramic metal halide lamp ballast |
11/01/2012 | WO2012145900A1 Ballast level control method and system for ceramic metal halide lamp |
11/01/2012 | US20120274229 Multiple strike ballast for electrodeless lamp |
11/01/2012 | US20120274226 Method and device for driving light-emitting diode |
11/01/2012 | US20120274215 Light soaking system for photovoltaic modules |
11/01/2012 | US20120274213 Driving apparatus for fluorescent tubes and method thereof |
11/01/2012 | CA2831424A1 Multiple strike ballast for electrodeless lamp |
10/31/2012 | DE102011100003A1 Elektronisches Vorschaltgerät für ein Beleuchtungsgerät Electronic ballast for a lighting device |
10/31/2012 | DE102011017582A1 Anordnung zur Erfassung des Tageslichts und System und Verfahren zur tageslichtabhängigen Steuerung The device for detection of daylight and system and method for daylight-dependent control |
10/31/2012 | DE102008034989B4 Schaltungsanordnung und Verfahren zur Steuerung der Leistungsaufnahme von Beleuchtungsanlagen mit Wechselspannungsspeisung Circuit arrangement and method for controlling the power consumption of lighting systems with alternating current supply |