| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 10/05/2005 | CN1221849C Image display apparatus |
| 10/04/2005 | US6952085 Continuous mode ballast with pulsed operation |
| 10/04/2005 | US6952082 Microwave excited ultraviolet lamp system with single electrical interconnection |
| 10/02/2005 | CA2503416A1 Lamp and lamp set |
| 10/02/2005 | CA2502846A1 Ballast for at least one lamp |
| 09/29/2005 | WO2005089473A2 Method for generating a discharge in high pressure gases |
| 09/29/2005 | WO2005089309A2 Power control methods and apparatus |
| 09/29/2005 | WO2005036745A3 A method and circuit for repetitively firing a flash lamp or the like |
| 09/29/2005 | US20050213353 LED power control methods and apparatus |
| 09/29/2005 | US20050213352 Power control methods and apparatus |
| 09/29/2005 | US20050212790 Power supply for an LCD panel |
| 09/29/2005 | US20050212637 Transformer and lamp driving system utilizing the same |
| 09/29/2005 | US20050212463 Ballast for high intensity discharging lamp |
| 09/29/2005 | US20050212462 Low-visual noise, jitterized pulse width modulation brightness control circuit |
| 09/29/2005 | US20050212461 Projection type video display apparatus |
| 09/29/2005 | US20050212460 Detecting apparatus for cold cathode lamp |
| 09/29/2005 | US20050212458 Electronic ballast with closed loop control using composite current and voltage feedback and method thereof |
| 09/29/2005 | US20050212457 Ballast for a discharge lamp |
| 09/29/2005 | US20050212456 Microwave energized plasma lamp with dielectric waveguide |
| 09/29/2005 | US20050212455 Standby lighting control for high intensity discharge lamp |
| 09/29/2005 | US20050212454 Lighting system |
| 09/29/2005 | DE10392478T5 Fluoreszenzlampenröhre Fluorescent lamp tube |
| 09/29/2005 | DE102004026783A1 Vorrichtung zum Steuern einer CCFL und Verfahren zum Betreiben derselben An apparatus for controlling a CCFL and methods of operating the same |
| 09/29/2005 | DE102004012216A1 Illuminant e.g. gas discharge lamp, operating devices controlling method for use in building, involves disconnecting one of devices from illuminant by DC-switch of DC-output circuit when switch is controlled by power factor correction unit |
| 09/29/2005 | DE102004012215A1 Luminous medium-operating devices controlling method, involves adjusting load of DC-output circuits using AC/DC converter and feeding cascaded DC/DC converter, that provides different output voltages, to power factor correction modules |
| 09/29/2005 | DE102004011641A1 Load dimming arrangement via ballast device e.g. for fluorescent tube lighting device, has dimmer connected to phase line of AC voltage network |
| 09/29/2005 | DE102004009583A1 Ballast for e.g. gas-discharge lamp, has capacitor and resistor forming dim arrangement that reduces lamp current supplied to lamp by receiving failure signal, which indicates failure of supply voltage |
| 09/29/2005 | CA2730210A1 Power control methods and apparatus |
| 09/28/2005 | EP1581030A1 Parallel lighting system for surface light source discharge lamps |
| 09/28/2005 | EP1579743A1 Bistate hid operation |
| 09/28/2005 | EP1579742A1 Dc/ac converter for supplying two gas discharge lamps |
| 09/28/2005 | EP1579741A1 Improved high frequency electronic ballast |
| 09/28/2005 | EP1579740A1 Capacitively coupled fluorescent lamp package |
| 09/28/2005 | EP1579739A1 Supply apparatus for high pressure lamps |
| 09/28/2005 | EP1579545A2 Electronic ballast with dc output flyback converter |
| 09/28/2005 | CN2730076Y Line control light regulator for fluorescent lamp |
| 09/28/2005 | CN2730075Y Remote controllight regulator for fluorescent lamp |
| 09/28/2005 | CN2730074Y High-efficient conversion lighting energy-saving device |
| 09/28/2005 | CN2729518Y Multifunctional cold fluorescent lamp |
| 09/28/2005 | CN1675966A Electronic circuit for supplying a high-pressure discharge arc lamp |
| 09/28/2005 | CN1674757A Electromagnetic inductive lamp circuit |
| 09/28/2005 | CN1674756A 放电灯点灯装置 The discharge lamp lighting device |
| 09/28/2005 | CN1674755A Discharge lamp lighting device and illuminating device |
| 09/28/2005 | CN1674060A Projection type video display apparatus |
| 09/27/2005 | US6949893 Television receiver and cold-cathode tube dimmer |
| 09/27/2005 | US6949890 LCD back light panel lamp connecting structure |
| 09/27/2005 | US6949888 Dimming ballast control IC with flash suppression circuit |
| 09/27/2005 | US6949887 High frequency inductive lamp and power oscillator |
| 09/27/2005 | US6949886 Dynamic displays |
| 09/27/2005 | US6949885 Discharge lamp lighting device and lighting apparatus |
| 09/27/2005 | US6949867 Multi-load driver circuit equipped with piezoelectric transformation circuits |
| 09/22/2005 | WO2005089030A1 Lamp driver using solar cells |
| 09/22/2005 | WO2005088382A1 Method for establishing a light beam with substantially constant luminous intensity |
| 09/22/2005 | US20050206327 Feedback sampling control circuit for lamp driving system |
| 09/22/2005 | US20050206326 Device for operation of a high pressure discharge lamp |
| 09/22/2005 | US20050206322 Electrodeless low-pressure discharge lamp operating device and self-ballasted electrodeless fluorescent lamp |
| 09/22/2005 | US20050206273 Piezoelectric transformer drive circuit and cold cathode tube lighting apparatus |
| 09/22/2005 | DE102005006587A1 Frequenzweiterleitung für eine konstante Lichtabgabe in einem Hintergrundbeleuchtungsinverter Rate forwarding for a constant light output in a backlight inverter |
| 09/22/2005 | DE102004009995A1 Switching arrangement for operating gas-discharge lamp, has inverter attached to load circuit that is galvanically separated from intermediate circuit that exhibits capacitors for adjusting impedances of intermediate circuit |
| 09/22/2005 | DE102004009994A1 Überstrom- und Mittenpunktspannungserfassung Overcurrent and midpoint voltage detection |
| 09/22/2005 | DE102004009993A1 Elektronisches Vorschaltgerät mit programmierbarer oder konfigurierbarer Steuereinheit Electronic ballast with programmable or configurable controller |
| 09/21/2005 | EP1576861A1 Flash device, camera device and method and program thereof for the elimination of wasteful power consumption therein |
| 09/21/2005 | EP1472776B1 Power factor correction circuit |
| 09/21/2005 | EP0992104B1 Low voltage illumination system |
| 09/21/2005 | CN2728164Y Infrared remote control light-dimming electronic ballast |
| 09/21/2005 | CN2728163Y An electronic ballast circuit |
| 09/21/2005 | CN2728162Y Fluorescent tube protector |
| 09/21/2005 | CN2728161Y An electronic ballast circuit |
| 09/21/2005 | CN2728160Y An integrated electronic transformer |
| 09/21/2005 | CN2728094Y An electronic transformer capable of automatic power limitation |
| 09/21/2005 | CN2727816Y Clock with luminous hands |
| 09/21/2005 | CN1672470A Driver for a gas discharge lamp |
| 09/21/2005 | CN1672109A Single chip ballast control with power factor correction |
| 09/21/2005 | CN1672108A Lamp driving topology |
| 09/21/2005 | CN1671266A Parallel lighting system for surface light source discharge lamps |
| 09/21/2005 | CN1671265A Discharging lamp initiating device and illuminating device |
| 09/21/2005 | CN1670901A Device for operation of a high pressure discharge lamp |
| 09/21/2005 | CN1670810A Cold cathode fluorescent tube type illumination device and its driving method and LCD having the same |
| 09/21/2005 | CN1670575A Backlight driving system for a liquid crystal display device |
| 09/20/2005 | US6947024 Apparatus and driving lamp and liquid crystal display device having the same |
| 09/20/2005 | US6946807 Lamp lighting apparatus for a discharge lamp |
| 09/20/2005 | US6946806 Method and apparatus for controlling minimum brightness of a fluorescent lamp |
| 09/20/2005 | CA2358052C Electrodeless discharge lamp system |
| 09/15/2005 | WO2005086545A1 Driver device for a gas discharge lamp and igniter |
| 09/15/2005 | WO2005086542A1 Lighting equipment |
| 09/15/2005 | WO2005086336A1 Dc-ac converter, its controller ic, and electronic apparatus using the dc-ac converter |
| 09/15/2005 | WO2005051051A3 Method and apparatus for controlling visual enhancement of lighting devices |
| 09/15/2005 | WO2005048659A3 Method and apparatus for optimizing power efficiency in light emitting device arrays |
| 09/15/2005 | US20050201088 Light fixture for cold temperature environments |
| 09/15/2005 | US20050200314 Digital ballast |
| 09/15/2005 | US20050200307 Lamp current control circuit |
| 09/15/2005 | US20050200305 Multi-lamp drive device |
| 09/15/2005 | US20050200304 Arrangement for generating pulsed currents with a high repetition rate and high current strength for gas discharge pumped radiation sources |
| 09/15/2005 | US20050200303 Lighting device for discharge lamp |
| 09/15/2005 | US20050200302 Pulse width modulation circuit and illuminating device incorporating same |
| 09/15/2005 | US20050200288 Emergency lighting function illumination appliance |
| 09/14/2005 | EP1575155A1 Piezoelectric transformer-driving circuit |
| 09/14/2005 | EP1574927A1 Power factor correction system |
| 09/14/2005 | EP1574115A1 Lighting unit |
| 09/14/2005 | EP1573891A2 Resonance converter and method for driving variable loads |