| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 12/31/2008 | CN100447617C Apparatus and method for driving lamp of liquid crystal display device |
| 12/30/2008 | US7471528 Parallel operating system of DC-AC converters and controller IC therefor |
| 12/25/2008 | US20080317974 Method and Arrangement for Generating and Controlling a Discharge Plasma |
| 12/25/2008 | US20080315797 Method and firmware for controlling an inverter voltage by drive signal frequency |
| 12/25/2008 | US20080315795 Amplification circuit and heat sink used with a light emitting apparatus having varying voltages |
| 12/25/2008 | US20080315794 Method and firmware for generting a digital dimming waveform for an inverter |
| 12/25/2008 | US20080315793 Method and firmware for controlling voltage and current in a fluorescent lamp array |
| 12/25/2008 | US20080315792 Method and circuit for correcting a difference in light output at opposite ends of a fluorescent lamp array |
| 12/25/2008 | US20080315790 Discharge lamp lighting control method, computer program, discharge lamp lighting control apparatus, and power supply circuit |
| 12/25/2008 | US20080315787 Dimming algorithms based upon light bulb type |
| 12/25/2008 | US20080315786 Method and Circuit Arrangement For the Operation of a Discharge Lamp |
| 12/25/2008 | US20080315785 Systems and methods for backlighting image displays |
| 12/25/2008 | US20080315784 Led lamp structure |
| 12/25/2008 | US20080315780 Light emitting diode driving device |
| 12/25/2008 | US20080315779 Electronic Ballast Having A Flyback Cat-Ear Power Supply |
| 12/25/2008 | US20080315778 Light-emitting-diode drive circuit |
| 12/25/2008 | US20080315777 Variable-Effect Lighting System |
| 12/25/2008 | US20080315772 Method and Apparatus for Lighting Control |
| 12/24/2008 | WO2008156991A1 Dimming algorithms based upon light bulb type |
| 12/24/2008 | WO2008156015A1 Discharge lamp operating device, illumination device, and liquid crystal display device |
| 12/24/2008 | WO2008155913A1 Fluorescent lamp drive device, drive method, light emission device, and liquid crystal television |
| 12/24/2008 | WO2008155714A1 Lamp driver, lighting system and method |
| 12/24/2008 | WO2008154797A1 Magnetic energy lamp with built-in magnetic energy generator |
| 12/24/2008 | WO2008132646A3 Driver apparatus for a gas discharge lamp |
| 12/24/2008 | EP2005805A1 Method and device for driving a lamp |
| 12/24/2008 | EP2005804A1 Circuit arrangement and method for operating a discharge lamp |
| 12/24/2008 | EP2005803A1 Reduced power loss in electronic ballasts |
| 12/24/2008 | EP1118150B1 A resonant mode power supply having over-power and over-current protection |
| 12/24/2008 | DE202008013914U1 Lichtsteuerschaltung-Anordnung Light control circuit assembly |
| 12/24/2008 | DE202008006136U1 Leuchtdioden-Baugruppe Light-emitting diode module |
| 12/24/2008 | DE102007028785A1 Leistungsfaktor-Korrekturfilter, insbesondere für den Einsatz in einem elektronischen Vorschaltgerät für ein Leuchtmittel Power factor correction filters, in particular for use in an electronic ballast for a lighting means |
| 12/24/2008 | CN201171245Y Intelligent radiating control device for electrodeless lamp ballast |
| 12/24/2008 | CN201171244Y 背光装置 Backlight device |
| 12/24/2008 | CN201171243Y Current changer with variable resonance gain |
| 12/24/2008 | CN201171242Y Energy-saving apparatus for gas discharging lamp |
| 12/24/2008 | CN201171241Y Electronic ballast casing and electric ballast |
| 12/24/2008 | CN201171038Y High-efficiency energy-saving two-tube daylight lamp with super strength lighteness |
| 12/24/2008 | CN201171037Y Energy-saving lamp with built-in ballast |
| 12/24/2008 | CN201170825Y Backlight component |
| 12/24/2008 | CN101331810A Illumination control apparatus using a pulsating wave |
| 12/24/2008 | CN101331809A Pulse width modulation apparatus and apparatus for driving light source having the same |
| 12/24/2008 | CN101331808A Circuit arrangement and method for the operation of at least one first and a second lamp |
| 12/24/2008 | CN101331807A Circuit arrangement and method for the operation of high-pressure gas discharge lamps |
| 12/24/2008 | CN101331806A Circuit arrangement and method for the operation of a high-pressure gas discharge lamp |
| 12/24/2008 | CN101331805A Dielectric barrier discharge lamp device and backlight for liquid crystal display |
| 12/24/2008 | CN101331804A Dielectric barrier discharge lamp ignition device, method of detecting number of igniting discharge lamps |
| 12/24/2008 | CN101331803A Dimming ballast and method |
| 12/24/2008 | CN101331800A Light emitting device |
| 12/24/2008 | CN101330792A Circuit and method for regulating light |
| 12/24/2008 | CN101330791A Intelligent induction fluorescent lamp |
| 12/24/2008 | CN101330790A Discharge lamp lighting apparatus and projector |
| 12/24/2008 | CN101330789A Light source device |
| 12/24/2008 | CN101330249A Active filter and use thereof |
| 12/24/2008 | CN101329844A Current balance module |
| 12/24/2008 | CA2686507A1 Dimming algorithms based upon light bulb type |
| 12/23/2008 | US7468878 Low voltage output for an electronic ballast |
| 12/23/2008 | US7468585 Metal halide lamp |
| 12/23/2008 | CA2345747C Dimmable discharge lamp for dielectrically impeded discharges |
| 12/19/2008 | CA2635287A1 Fully reflective, adjustable field size illuminator for solar simulation |
| 12/18/2008 | WO2008151963A1 Circuit configuration having a plurality of reverse converter modules and method for providing a number of 2*n control pulses for the n electrodes of a dielectrically impeded discharge lamp |
| 12/18/2008 | WO2008151669A1 Circuit arrangement for operating discharge lamps and method for operating discharge lamps |
| 12/18/2008 | US20080309256 Integrated circuit controller for ballast |
| 12/18/2008 | US20080309254 Backlight Unit for Display Service |
| 12/18/2008 | US20080309252 Controller of Light Dimmig and Overload Protection |
| 12/18/2008 | US20080309250 Radio Station and Method of Operating a Radio Station |
| 12/18/2008 | US20080309249 Gas Discharge Lamp Ignition |
| 12/18/2008 | US20080309246 Projector Device Employing Ballast with Flyback Converter |
| 12/18/2008 | US20080309245 System and method for analog voltage processing in wide range for cold-cathode fluorescent lamp |
| 12/18/2008 | US20080309244 Primary-side driving control circuit for backlight of LCD panel |
| 12/18/2008 | DE112007000465T5 Entladungslampenvorschaltgerät The discharge lamp ballast |
| 12/18/2008 | DE102007027734A1 Schaltungsanordnung mit mehreren Sperrwandlermodulen und Verfahren zum Bereitstellen einer Anzahl von 2*n Ansteuersignalen für die n Elektroden einer dielektrisch behinderten Entladungslampe Circuit arrangement with several flyback converter modules and method for providing a plurality of 2 * n drive signals for the n electrodes of a dielectric barrier discharge lamp |
| 12/18/2008 | DE102007027179A1 Integrated control circuit i.e. hardware-controlled application-specific integrated circuit, for electronic ballast of e.g. low pressure-gas discharge lamp, has heating current detector detecting availability of heating circuit switch |
| 12/18/2008 | CA2690558A1 Circuit arrangement for operating discharge lamps and method for operating discharge lamps |
| 12/17/2008 | EP2003937A1 Driving method and control method of hot cathode fluorescent lamp, and estimation method of temperature of filament in hot cathode fluorescent lamp |
| 12/17/2008 | CN201167432Y Variable power apparatus for presetting time of high voltage sodium lamp |
| 12/17/2008 | CN201167431Y Energy-saving stepless voltage regulator for illumination |
| 12/17/2008 | CN201167430Y Circuit board with protection loop for discharging tube |
| 12/17/2008 | CN201167429Y Electric ballast apparatus for receiving exterior signal |
| 12/17/2008 | CN201167428Y Piezo-oscillator with high power output |
| 12/17/2008 | CN201166292Y Wind and light complementary illuminating system |
| 12/17/2008 | CN101326861A Apparatus and method for controlling the filament voltage in an electronic dimming ballast |
| 12/17/2008 | CN101325835A Power control method and apparatus for adjusting light of gas discharging light source |
| 12/17/2008 | CN101325834A Electronic ballast for high-pressure discharge lamp |
| 12/17/2008 | CN101325380A Backlight control circuit and backlight control method |
| 12/17/2008 | CN101325379A Backlight control circuit and backlight control method |
| 12/17/2008 | CN101324309A Lighting device |
| 12/17/2008 | CN100444508C Driving circuit and method for three-phase current thansformer |
| 12/17/2008 | CN100444017C Flasher and auxiliary power supply device |
| 12/17/2008 | CN100443963C Cold-cathode fluorescent lamp balance control circuit |
| 12/17/2008 | CN100443797C Self-ballasted fluorescent lamp and luminaire |
| 12/16/2008 | US7466566 DC-AC converter, controller IC therefor, and electronic apparatus utilizing such DC-AC converter |
| 12/16/2008 | US7466083 Protective device for vehicle electronic apparatus |
| 12/11/2008 | WO2008149582A1 Backlight lamp lighting controller and display device including the same |
| 12/11/2008 | WO2008149293A1 Device for driving a gas discharge lamp |
| 12/11/2008 | WO2008149275A1 Driver device for driving a plurality of leds |
| 12/11/2008 | WO2008148725A2 High-pressure discharge lamp comprising a high-voltage impulse generator and method for producing a high-voltage impulse generator |
| 12/11/2008 | WO2008148690A1 High-pressure discharge lamp having an improved ignition device, and ignition device for a gas discharge lamp |
| 12/11/2008 | WO2008148657A1 Method for the production of a ceramic spiral pulse generator and ceramic spiral pulse generator |
| 12/11/2008 | WO2008148424A1 High-pressure discharge lamp with improved ignition quality and ignition device for a gas discharge lamp |
| 12/11/2008 | WO2008124159A3 System and method for providing adjustable ballast factor |