| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 10/03/2000 | US6127778 Lampholder and lighting unit comprising a lampholder |
| 10/03/2000 | US6127772 Multiple element lamp |
| 10/03/2000 | CA2155340C Method to operate an incoherently emitting radiation source |
| 09/28/2000 | WO2000057243A1 Electrochemical device, such as an electrically controlled system with variable optical and/or energy properties |
| 09/28/2000 | CA2332622A1 Electrochemical device of electrically controllable system type having variable optical and/or energy properties |
| 09/27/2000 | EP1039786A1 Electronic flash device for photographic camera |
| 09/27/2000 | CN2398798Y Electric saving light modulator for fluorescent lamp |
| 09/27/2000 | CN2398797Y Active boostrap filter type electronic ballast |
| 09/27/2000 | CN1268281A Discharge lamp |
| 09/27/2000 | CN1268226A Flash unit |
| 09/27/2000 | CN1268018A Ballast for discharge lamp |
| 09/27/2000 | CN1056954C Light modulation electronic ballast for fluorescent lamp |
| 09/27/2000 | CN1056950C High frequency AC/AC converter with power factor correction |
| 09/26/2000 | US6124684 Automatic light dimmer for gas discharge lamps |
| 09/26/2000 | US6124683 System for and method of operating a mercury free discharge lamp |
| 09/26/2000 | US6124682 Lamp driver circuit using resonant circuit for starting lamp |
| 09/26/2000 | US6124681 Electronic ballast for high-intensity discharge lamp |
| 09/26/2000 | US6124680 Lighting device for illumination and lamp provided with the same |
| 09/26/2000 | US6124678 Fluorescent lamp excitation circuit having a multi-layer piezoelectric acoustic transformer and methods for using the same |
| 09/21/2000 | WO2000056126A1 Xenon flash lamp, and socket and rectifier for xenon flash lamp |
| 09/21/2000 | WO2000024233A3 Ballast circuit |
| 09/21/2000 | DE19912517A1 Circuit for operation of ultra-violet discharge lamp has a control circuit and a number of current stabilizing elements connected in parallel to a primary serial stabilizing elements to increase the power to the lamp over time |
| 09/21/2000 | DE10013147A1 Discharge lamp lighting control arrangement incudes piezoelectric traducer for reacting to supply voltage for providing required higher voltage for firing lamp |
| 09/20/2000 | EP0974081A4 Power supply and electronic ballast with low-cost inverter bootstrap power source |
| 09/20/2000 | EP0839436B1 Method for operating a lighting system and suitable lighting system therefor |
| 09/20/2000 | CN2397701Y High effiicent electronic ballast and special-purpose high efficient electronic ballast |
| 09/20/2000 | CN2397700Y LC advanced top ballast |
| 09/20/2000 | CN2397699Y Energy-saving lamp ballast |
| 09/20/2000 | CN2397698Y Columnar electronic ballast device |
| 09/20/2000 | CN1267375A Low-voltage high-efficiency fluorescent signage particularly exist sign |
| 09/19/2000 | US6122678 Local network based multiple sensor device with electrical load control means and with temperature sensor that is exposed to ambient air by diffusion |
| 09/19/2000 | US6121734 Apparatus for dimming a fluorescent lamp with a magnetic ballast |
| 09/19/2000 | US6121733 Controlled inverter-type fluorescent lamp ballast |
| 09/19/2000 | US6121732 Neon lamp power supply for producing a bubble-free discharge without promoting mercury migration or premature core saturation |
| 09/19/2000 | US6121731 Discharge lamp lighting system with overcurrent protection for an inverter switch or switches |
| 09/14/2000 | WO2000054558A1 Circuit arrangement |
| 09/14/2000 | WO2000054557A1 A networkable power controller |
| 09/14/2000 | WO2000035252A3 Digital lamp ballast |
| 09/14/2000 | DE10006466A1 Ballast for a discharge lamp used in motor vehicle headlamps |
| 09/13/2000 | EP1035756A2 Method and system for driving high pressure mercury discharge lamp and image projector |
| 09/13/2000 | EP1034691A1 Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method |
| 09/13/2000 | CN2396601Y High-power factor electronic ballast |
| 09/13/2000 | CN2396600Y Light modulating energy-saving lamp |
| 09/13/2000 | CN2396599Y 电子镇流器 Electronic Ballast |
| 09/13/2000 | CN1266606A Method for operating a direct current metal halogen arc lamp and circuit pertaining thereto |
| 09/13/2000 | CN1266605A Triac dimmable ballast |
| 09/12/2000 | US6118415 Resonant square wave fluorescent tube driver |
| 09/12/2000 | US6118228 Electronic ballast for fluorescent lamps |
| 09/12/2000 | US6118227 High frequency electronic drive circuits for fluorescent lamps |
| 09/12/2000 | US6118225 High frequency discharge lamp operating circuit with resonant power factor correction circuit |
| 09/12/2000 | US6118224 Discharge lamp lighting device |
| 09/12/2000 | US6118223 Power supply for discharge lamps with balanced resonant circuit |
| 09/12/2000 | US6118221 Cold-cathode tube lighting circuit with protection circuit for piezoelectric transformer |
| 09/07/2000 | DE19909529A1 Einseitig gesockelte Hochdruckentladungslampe mit im Sockel integrierter Zündvorrichtung Single-cap high-pressure discharge lamp with integrated igniter in the base |
| 09/06/2000 | EP1033907A2 Circuit and method for operating at least one high pressure discharge lamp |
| 09/06/2000 | EP1033906A2 High pressure discharge lamp with a lamp base integrated ignition device |
| 09/06/2000 | EP1033067A1 Control circuit and method for piezoelectric transformer |
| 09/06/2000 | EP1033066A1 Circuit configuration for operating at least one discharge lamp |
| 09/06/2000 | CN2395497Y Ballast of fluorescent lamp |
| 09/06/2000 | CN2395450Y 一体化应急灯 Integration of emergency lights |
| 09/06/2000 | CN1265558A Method and ballast for starting discharge lamp |
| 09/05/2000 | US6114816 Lighting control system for discharge lamps |
| 09/05/2000 | US6114815 Device and process for lighting discharge lamp |
| 09/05/2000 | US6114814 Apparatus for controlling a discharge lamp in a backlighted display |
| 09/05/2000 | US6114810 Electronic ballast circuit for fluorescent lamps which have a high Q factor and high resonance voltage |
| 08/31/2000 | DE19905997A1 Arc discharge lamp voltage adapter has charging stage with HF converter controlled by pulse width modulator, low inductance output stage feeding capacitor energy directly to lamp |
| 08/31/2000 | DE19905487A1 Schaltungsanordnung zum Betrieb mindestens einer Niederdruckentladungslampe Circuit arrangement for operating at least one low-pressure discharge lamp |
| 08/31/2000 | DE10006796A1 Starting method for discharge lamp involves applying power according to start-up curve derived from reference curve with power level decreasing from voltage adapter stimulation time |
| 08/31/2000 | DE10000022A1 Effizientes elektronisches Vorschaltgerät für Leuchtstoffröhren Efficient electronic ballast for fluorescent lamps |
| 08/30/2000 | EP1031258A1 Interface for a lamp operating device |
| 08/30/2000 | EP0758520B1 High pressure discharge lamp igniting circuit |
| 08/30/2000 | CN2394402Y Electronic energy saving ballast for high voltage sodium lamp |
| 08/30/2000 | CN2394401Y High power factor electronic ballast with low current peak-to-valley rate |
| 08/30/2000 | CN2394400Y Parallel ballasts for fluorescent tubes |
| 08/30/2000 | CN2394377Y Time delayed protector for bridge inverter |
| 08/29/2000 | US6111765 Discharge lamp operating circuit using piezoelectric transformer and protective device |
| 08/29/2000 | US6111732 Apparatus and method for detecting ground fault |
| 08/29/2000 | US6111370 High-efficiency gas discharge signage lighting |
| 08/29/2000 | US6111369 Electronic ballast |
| 08/29/2000 | US6111368 System for preventing oscillations in a fluorescent lamp ballast |
| 08/29/2000 | US6111366 Ignition transformer for gas discharge bulbs |
| 08/29/2000 | US6111365 Fast starting, surge limited, electronic ballast |
| 08/29/2000 | US6111363 Ballast shutdown circuit for a gas discharge lamp |
| 08/29/2000 | US6111360 Fluorescent discharge lamp with overcurrent protection |
| 08/29/2000 | US6111359 Integrated HID reflector lamp with HID arc tube in a pressed glass reflector retained in a shell housing a ballast |
| 08/24/2000 | DE10004269A1 Flash lamp has devices for adjustment of flash power and flash frequency of flash lamp and recognizer for attainment/exceeding of temperature threshold |
| 08/23/2000 | EP1030541A1 Power supply device for a resonant load |
| 08/23/2000 | CN2393302Y Resonance type electronic ballast |
| 08/23/2000 | CN2393301Y Electronic ballast for tabelike fluorescent lamp |
| 08/23/2000 | CN2393119Y On-off synchronously flasing when shutting down optical shutter of camera |
| 08/23/2000 | CN1264268A Controller of flashing lamp group with common power supply and its control method |
| 08/23/2000 | CN1264267A Discharge lamp ballast |
| 08/23/2000 | CN1055783C Inductive tuners for microwave driven discharge lamps |
| 08/22/2000 | US6108220 Solid state fail-safe control of an AC load utilizing synchronous switching |
| 08/22/2000 | US6108215 Voltage regulator with double synchronous bridge CCFL inverter |
| 08/22/2000 | US6107758 Operation circuit in particular for discharge lamps using discrete time definition values to control operation state switching |
| 08/22/2000 | US6107757 Fluorescent lamp operating apparatus |
| 08/22/2000 | US6107756 Low-voltage non-thermionic ballast-free energy-efficient gas-discharge landscape lighting system and method using high-frequency square wave AC driver circuits |
| 08/22/2000 | US6107755 Modular, configurable dimming ballast for a gas-discharge lamp |
| 08/22/2000 | US6107754 Electronic ballast for high-intensity discharge lamp and method of driving high-intensity discharge lamp |