| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
|---|
| 07/12/2007 | WO2007078911A2 Ripple reduction method for electronic ballasts |
| 07/12/2007 | WO2007078910A1 Output short circuit protection for electronic ballasts |
| 07/12/2007 | WO2007078699A1 Dimming ballast and method |
| 07/12/2007 | WO2007076641A1 Electronic ballast startup output current-limited circuit for high voltage sodium lamp |
| 07/12/2007 | US20070159445 High voltage discharge lamp lighting method, lighting apparatus and image device using that lighting apparatus |
| 07/12/2007 | US20070159117 Backlight module control circuit of multi-lamp display device |
| 07/12/2007 | US20070159116 Ballast and igniter for a lamp having larger storage capacitor than charge pump capacitor |
| 07/12/2007 | US20070159115 Apparatus for driving lamps and liquid crystal display having the same |
| 07/12/2007 | US20070159114 Inverter |
| 07/12/2007 | US20070159107 Apparatus and method for controlling discharge lights |
| 07/12/2007 | DE202007003033U1 Vorrichtung für die Messung des Stromes einer Entladungslampe Apparatus for the measurement of the current of a discharge lamp |
| 07/12/2007 | DE19713935B4 Stromversorgungsschaltung für eine Entladungslampe Power supply circuit for a discharge lamp |
| 07/11/2007 | EP1806955A1 Ballast for discharge lamp and method of driving said ballast |
| 07/11/2007 | EP1806034A1 Resonant ignitor circuit for lamp with a variable output capacitance ballast |
| 07/11/2007 | CN2922374Y New variable colour lamp string |
| 07/11/2007 | CN2922373Y Ultraviolet lamp waiting operation device |
| 07/11/2007 | CN2922372Y Multi-functional sensor |
| 07/11/2007 | CN2922371Y Luminous diode driving circuit and serial luminous diode luminous system |
| 07/11/2007 | CN2922370Y Whole-bridge autoconnected high frequency electronic ballast |
| 07/11/2007 | CN1997253A A driving device for cold light source (CCFL) or gas discharge lamp (fluorescent lamp) |
| 07/11/2007 | CN1997252A Quick startup induction and capacitance ballast |
| 07/11/2007 | CN1996201A Magnetic engaging structure |
| 07/11/2007 | CN1996026A Discharge lamp drive device and voltage detection circuit using same |
| 07/10/2007 | US7242594 Full bridge inverter with push/pull control chip |
| 07/10/2007 | US7242151 Multiple lamp balance transformer and drive circuit |
| 07/10/2007 | US7242150 Dimmer having a power supply monitoring circuit |
| 07/10/2007 | US7242147 Current sharing scheme for multiple CCF lamp operation |
| 07/10/2007 | CA2472234C Lamp transformer for use with an electronic dimmer and method for use thereof for reducing acoustic noise |
| 07/05/2007 | WO2007075471A1 Crest factor reduction method for electronically ballasted lamps |
| 07/05/2007 | WO2007074724A1 Power supply circuit and lighting system |
| 07/05/2007 | WO2007074392A2 Pulse generator used for electronic ballast |
| 07/05/2007 | WO2007073615A1 Metal halogenation lamp electron driver |
| 07/05/2007 | WO2007050652A3 Ac switch with zero off current for el panel |
| 07/05/2007 | WO2007034412A3 Magnetic ballast fault isolation system and method |
| 07/05/2007 | US20070152609 Inverter system and detecting device thereof |
| 07/05/2007 | US20070152608 Circuit Structure for Driving a Plurality of Cold Cathode Flourescent Lamps |
| 07/05/2007 | US20070152607 Electric current balancing device |
| 07/05/2007 | US20070152606 Balanced circuit for multi-led driver |
| 07/05/2007 | US20070152605 Device for driving light sources |
| 07/05/2007 | US20070152604 Low-voltage power supply circuit for illumination, illumination device, and low-voltage power supply output method for illumination |
| 07/05/2007 | US20070152603 Crest factor reduction method for electronically ballasted lamps |
| 07/05/2007 | US20070152598 Method for increasing profit in a business to maintain lighting operations in an office building or other place of business |
| 07/04/2007 | EP1804231A2 Backlight module and driving circuit module thereof |
| 07/04/2007 | EP1803336A2 Modulation of a pfc during dc operation |
| 07/04/2007 | EP1803335A2 Ballast with zero voltage switching converter |
| 07/04/2007 | EP1803332A1 Sinewave dimmer control method |
| 07/04/2007 | EP1627557B1 Limited open circuit voltage ballast |
| 07/04/2007 | EP1593290B1 Circuit arrangement |
| 07/04/2007 | CN2919780Y Metal halide lamp electronic ballast for high-speed shooting |
| 07/04/2007 | CN2919779Y Light-adjustable high strength gas discharge lamp electronic ballast |
| 07/04/2007 | CN2919778Y Light source circuit of white light diode solar-energy street lamp |
| 07/04/2007 | CN2919777Y High-voltage sodium-lamp electronic ballast |
| 07/04/2007 | CN1994026A Method and circuit arrangement for operating a discharge lamp |
| 07/04/2007 | CN1994025A Discharge lamp operating device |
| 07/04/2007 | CN1993009A Method and system for open lamp protection |
| 07/04/2007 | CN1993008A Discharge lamp driving apparatus |
| 07/04/2007 | CN1993007A Light device for short arc discharge lamp, ultraviolet ray irradiation device and ultraviolet ray irradiation method |
| 07/04/2007 | CN1993006A Dimming ballast control circuit |
| 07/03/2007 | US7239094 Electronic ballast with adaptive lamp preheat and ignition |
| 07/03/2007 | US7239092 Limited open circuit voltage ballast |
| 07/03/2007 | US7239091 Discharge lamp lighting apparatus for lighting multiple discharge lamps |
| 07/03/2007 | US7239087 Method and apparatus to drive LED arrays using time sharing technique |
| 06/28/2007 | WO2007072925A1 Discharge lamp lighting device and image display device |
| 06/28/2007 | WO2007072265A2 Method and circuit for driving a gas discharge lamp |
| 06/28/2007 | WO2007072260A1 Device for driving a discharge lamp, and switching circuit for use in such device |
| 06/28/2007 | WO2007071170A1 Light emitting device |
| 06/28/2007 | US20070145914 Device for driving light emitting diode |
| 06/28/2007 | US20070145913 Control unit for controlling DC/DC converter, DC/DC converter, electric apparatus, and apparatus having supply circuit |
| 06/28/2007 | US20070145912 Multi-mode flashlight |
| 06/28/2007 | US20070145911 Split phase inverters for ccfl backlight system |
| 06/28/2007 | US20070145910 Backlight module and driving circuit module thereof |
| 06/28/2007 | US20070145909 Inductively-powered gas discharge lamp circuit |
| 06/28/2007 | US20070145908 Igniting pulse booster circuit |
| 06/28/2007 | US20070145907 Ballast integrated circuit (IC) |
| 06/28/2007 | US20070145905 Driver device for a gas discharge lamp and igniter |
| 06/28/2007 | DE4328748B4 Wechselrichtereinheit Inverter unit |
| 06/28/2007 | DE202007003032U1 Auswertevorrichtung für die Zündenergie einer Entladungslampe Evaluation for the ignition of a discharge lamp |
| 06/28/2007 | DE102005061832A1 Hochdruckentladungslampe mit verbesserter Zündfähigkeit sowie Hochspannungspulsgenerator High-pressure discharge lamp having improved ignitability as well as high voltage pulse generator |
| 06/28/2007 | DE102005061831A1 Hochdruckentladungslampe mit verbesserter Zündfähigkeit High-pressure discharge lamp with improved ignitability |
| 06/28/2007 | DE102005060797A1 Vorrichtung zur Verbesserung der elektromagnetischen Verträglichkeit einer Hochdruckentladungslampe A device for improving the electromagnetic compatibility of a high pressure discharge lamp |
| 06/27/2007 | EP1800522A1 Frequency modulation method and device for high intensity discharge lamp |
| 06/27/2007 | CN2917187Y Duplex protecting device of LED decorative lamp |
| 06/27/2007 | CN2917186Y 日光灯电路 Fluorescent lamp circuit |
| 06/27/2007 | CN2917185Y Explosion-proof stroboscopic light device |
| 06/27/2007 | CN2917184Y Current-limiting AC 220V semiconductor LED drive circuit |
| 06/27/2007 | CN2917183Y Preheating start circuit of DC electronic ballast |
| 06/27/2007 | CN2917182Y High voltage sodium lamp electronic ballast that lights up the lamp through frequency sweeping |
| 06/27/2007 | CN2917181Y Power supply unit for microwave sulfur lamp |
| 06/27/2007 | CN2917180Y Current transformer for LED decorative lamp |
| 06/27/2007 | CN2917179Y Reactive compensation power saver for sodium road lamp |
| 06/27/2007 | CN2917178Y Selective ballast |
| 06/27/2007 | CN2917177Y Electronic ballast starting circuit for high pressure gas discharge lamp |
| 06/27/2007 | CN2917176Y Push-connected fluorescent lamp electronic ballast |
| 06/27/2007 | CN2917175Y Simple protecting device of LED decorative lamp |
| 06/27/2007 | CN2917173Y Socket joint electronic rectifier lamp holder for annular lamp tube |
| 06/27/2007 | CN1989792A Color adjustable lamp |
| 06/27/2007 | CN1989791A Flash circuit using a piezoelectric transformer |
| 06/27/2007 | CN1989790A A lamp driver providing synchronization during commutation |
| 06/27/2007 | CN1989789A Multi-pulse ignition circuit for a gas discharge lamp |
| 06/27/2007 | CN1989788A Discharge lamp lighting device and projector |