Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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11/30/2005 | CN1230040C Apparatus and method for reducing energy consumption |
11/30/2005 | CN1229879C Piezoelectric transformer |
11/29/2005 | US6969975 Circuit arrangement for power factor correction |
11/29/2005 | US6969958 Square wave drive system |
11/29/2005 | US6969957 Ignition system for a high-frequency high-intensity discharge lamp system |
11/29/2005 | US6969956 Current control apparatus for fluorescent lamps |
11/29/2005 | US6969955 Method and apparatus for dimming control of electronic ballasts |
11/26/2005 | CA2508131A1 Ballast for a discharge lamp having a continuous-operation control circuit |
11/24/2005 | WO2005112523A1 Cicuit for driving cold cathode tubes and external electrode fluorescent lamps |
11/24/2005 | WO2005111758A1 Method and circuit for active power factor correction |
11/24/2005 | US20050259983 Strobe light emitting apparatus and camera |
11/24/2005 | US20050258783 Inverter circuit for lighting backlight of liquid crystal display and method for driving the same |
11/24/2005 | US20050258782 High-voltage discharge lamp operating device |
11/24/2005 | US20050258781 Driving voltage controller for light-emitting source |
11/24/2005 | US20050258780 Lamp frequency control system for display and method for controlling lamp frequency |
11/24/2005 | US20050258779 Light source, projector, and method of driving arc tube |
11/24/2005 | US20050258778 Method and apparatus for single-ended conversion of DC to Ac power for driving discharge lamps |
11/24/2005 | US20050258765 Arc maintenance device for high density discharge lamps including an adaptive wave form monitor |
11/24/2005 | DE102005010518A1 Exchangeable end caps for low-energy lights with protective tubes are designed so that the mechanical connection between the bulb protection tube and the end cap can be undone |
11/23/2005 | EP1598592A2 Illumination device |
11/23/2005 | EP1597944A1 Apparatus for power control in lighting systems |
11/23/2005 | EP1356714B1 Ballast and method of feeding a fluorescent lamp |
11/23/2005 | EP1120021B1 Modular high frequency ballast architecture |
11/23/2005 | CN2742722Y Lamp tube even current application circuit |
11/23/2005 | CN1701645A Apparatus for supplying power, backlight assembly and liquid crystal display apparatus having the same |
11/23/2005 | CN1701643A Remote control of electronic light ballast and other devices field of the invention |
11/23/2005 | CN1701604A Lighting system provided with a sequential colour filtering and a high-pressure discharge lamp |
11/23/2005 | CN1700838A Inverter circuit for lighting backlight of liquid crystal display and method for driving the same |
11/23/2005 | CN1700837A Headlight power supply system for electric scooter |
11/23/2005 | CN1700836A Electronic transformer for low-pressure lamp |
11/23/2005 | CN1700579A Method and apparatus for single-ended conversion of DC to AC power for driving discharge lamps |
11/23/2005 | CN1700087A Light source, projector, and method of driving arc tube |
11/23/2005 | CN1228998C Lighting device of discharge lamp and lighting device |
11/23/2005 | CN1228812C Electrodeless illuminating system |
11/22/2005 | US6967558 Inverter transformer and inverter circuit |
11/22/2005 | US6967449 Can be utilized in an ideal manner to light a high-pressure discharge lamp such as a high-pressure mercury lamp or an ultra high-pressure mercury lamp with AC rectangular wave power |
11/22/2005 | US6967446 High pressure discharge lamp lighting apparatus and high pressure discharge lamp lighting method |
11/22/2005 | CA2267918C Circuit arrangement for operating low-pressure discharge lamps |
11/17/2005 | WO2005109968A1 Method and circuit arrangement for the operation of a discharge lamp |
11/17/2005 | WO2005109967A1 Cold-cathode tube lighting device |
11/17/2005 | WO2005109966A1 Cold-cathode tube lighting device |
11/17/2005 | WO2005109965A1 Circuit arrangement and method for striking a gas discharge lamp with a time-limited starting phase |
11/17/2005 | US20050253537 Backlight assembly, display device and driving apparatus of light source for display device |
11/17/2005 | US20050253536 Fluorescent lamp driver and liquid crystal display apparatus |
11/17/2005 | US20050253535 Starter |
11/17/2005 | US20050253534 Circuit for driving cold cathode tubes and external electrode fluorescent lamps |
11/17/2005 | US20050253532 Lamp fault detector |
11/17/2005 | DE4426664B4 Vorrichtung zum Starten und Betreiben einer Hochdruck-Entladungs-Lampe A device for starting and operating a high pressure discharge lamp |
11/17/2005 | DE202005013754U1 Electronic control gear for operating discharge lamp, has measuring device to measure parameter that correlates to increased electrode temperature, and control device to react to temperature by adjustment of operating parameter of gear |
11/17/2005 | DE202005013753U1 Electronic ballast for operating discharge lamp, has control device to ignite lamp discharging in non-repetitive process for parameter e.g. voltage, that is correlated to temperature of electrodes during measurement of parameter |
11/17/2005 | DE202005013674U1 Voltage isolation for a SEPIC type converter circuit used in starter circuits for operating low pressure gas discharge lamps |
11/17/2005 | DE19843643B4 Schaltungsanordnung zum Starten und Betreiben einer Hochdruck-Entladungslampe Circuit arrangement for starting and operating a high-pressure discharge lamp |
11/17/2005 | DE102004037021A1 Verfahren zum Betreiben einer Lampe und Treiberschaltkreis hierfür Method for operating a lamp and driver circuit therefor |
11/17/2005 | DE102004019600A1 Überbrückungsvorrichtung zum Überbrücken einer elektrischen Last Bridging device for bridging an electrical load |
11/16/2005 | EP1535496A4 Radio frequency driven ultra-violet lamp |
11/16/2005 | EP1277375B1 Lamp start-up sequence with interruption period |
11/16/2005 | EP1149511B1 Digital power controller |
11/16/2005 | CN2741317Y Fluorescent tube current controller |
11/16/2005 | CN1698360A Image display |
11/16/2005 | CN1698087A Active matrix type display apparatus |
11/16/2005 | CN1697585A Warming up circuit of generating instant heat for fluorescent lamp tube with cold cathode |
11/16/2005 | CN1697584A Fluorescent lamp driver and liquid crystal display apparatus |
11/16/2005 | CN1696793A Backlight assembly, display device and driving apparatus of light source for display device |
11/16/2005 | CN1696567A Lighting apparatus for discharge lamp |
11/16/2005 | CN1227955C Protection and reset circuit against burst |
11/16/2005 | CN1227954C Circuit arrangement |
11/16/2005 | CN1227680C Contra variant transformer and discharge lamp firing circuit using the same contra variant transformer |
11/15/2005 | US6965322 Traffic signal operation during power outages |
11/15/2005 | US6965204 Ballasting circuit for optimizing the current in the take-over/warm-up phase |
11/15/2005 | US6965203 Method and circuit for repetitively firing a flash lamp or the like |
11/15/2005 | CA2184321C Lamp starting circuit |
11/10/2005 | WO2005107339A1 Device for generation of voltage pulse sequences in particular for operation of capacitive discharge lamps |
11/10/2005 | WO2005059964A3 Current-mode driver |
11/10/2005 | US20050250375 Universal electrical plug and socket |
11/10/2005 | US20050248442 Device and method for synchronizing a flasher frequency with a central flashing frequency |
11/10/2005 | US20050248299 Light system manager |
11/10/2005 | US20050248298 Duplexing protection apparatus and operation method thereof |
11/10/2005 | US20050248297 Methods and apparatus for an improved amplifier for driving a dynamic load |
11/10/2005 | US20050248295 Power factor correction circuit for electronic ballast |
11/10/2005 | US20050248294 Vehicular lamp |
11/10/2005 | US20050248293 Electronic ballast for a lamp |
11/10/2005 | US20050248291 Methods and apparatus for an improved amplifier for driving a non-linear load |
11/10/2005 | US20050248290 Lighting apparatus for discharge lamp |
11/10/2005 | US20050248289 Driver for a gas discharge lamp |
11/10/2005 | US20050248288 Light modulation method and apparatus for cold cathode fluorescent lamps |
11/10/2005 | US20050248287 Current control apparatus for fluorescent lamps |
11/10/2005 | US20050248285 Solar powered light assembly to produce light of varying colours |
11/10/2005 | US20050248282 Vehicular lamp, cold cathode fluorescent lamp lighting apparatus, and cold cathode fluorescent lamp lighting method |
11/10/2005 | US20050248281 Plasma lamp with dielectric waveguide |
11/10/2005 | DE102004020500A1 Operating circuit for high-pressure gas discharge lamp has voltage converter supplying load circuit with capacitor in series with secondary winding of ignition transformer of pulse ignition device for lamp |
11/10/2005 | DE102004020499A1 Schaltungsanordnung zum Betrieb von Hochdruckentladungslampen und Betriebsverfahren für eine Hochdruckentladungslampe Circuit arrangement for operating high-pressure discharge lamps and operating method for a high pressure discharge lamp |
11/10/2005 | DE102004020397A1 Verfahren zum Betreiben einer Hochdruckentladungslampe Method for operating a high pressure discharge lamp |
11/10/2005 | DE102004018804A1 Vorrichtung zur Steuerung einer Vielzahl von Leuchten An apparatus for controlling a plurality of lights |
11/10/2005 | CA2507054A1 Universal electric plug and socket |
11/09/2005 | EP1594349A1 Electronic ballast for a lamp |
11/09/2005 | EP1594156A2 Device for operation of a high pressure discharge lamp |
11/09/2005 | EP1593906A2 Illumination device |
11/09/2005 | EP1593290A1 Circuit arrangement |
11/09/2005 | EP1593289A1 Dimmable ballast for an electrodeless discharge lamp |
11/09/2005 | EP1593133A2 Inductive coil assembly |