| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 05/08/2013 | CN101360379B Light source protection circuit and application thereof in backlight module unit and LCD |
| 05/07/2013 | US8436557 Ballast control circuit and ballast control method for gas discharge lamp |
| 05/07/2013 | US8436554 LED solar illuminator |
| 05/07/2013 | US8436548 Dimmer conduction angle detection circuit and system incorporating the same |
| 05/07/2013 | US8436547 Multi-lamp driving system |
| 05/07/2013 | US8436546 Electrodeless lamps and methods |
| 05/07/2013 | US8436545 Light source apparatus |
| 05/07/2013 | US8436544 LED controller with de-flicker function and LED de-flicker circuit and method thereof |
| 05/02/2013 | WO2013060427A1 Controller for a fluorescent lamp |
| 05/02/2013 | US20130106314 Xenon lamp illumination apparatus |
| 05/02/2013 | US20130106300 Passive lc ballast and method of manufacturing a passive lc ballast |
| 05/02/2013 | DE112011101249T5 Transformatoranordnung zum Schützen von optoelektrischen Komponenten Transformer arrangement for protecting optoelectronic components |
| 05/01/2013 | EP2587897A1 Controller for a fluorescent lamp |
| 05/01/2013 | CN202918574U Inversion principle based light modulation economizer for street lamp energy saving |
| 05/01/2013 | CN202918573U Control circuit of high-power high-frequency high?voltage sodium lamp and metal halide lamp |
| 05/01/2013 | CN202918572U Arc-second photoelectric electronic ballast with energy conservation |
| 05/01/2013 | CN202918571U Double-bulb intelligent switching electronic ballast |
| 05/01/2013 | CN202918201U Transverter capable of realizing input current equalization of transformer |
| 05/01/2013 | CN202917311U Light-emitting diode (LED) tube light transformer framework, LED tube light transformer and LED tube light drive power supply |
| 05/01/2013 | CN103079325A Circuit device for high-efficiency electronic ballast |
| 05/01/2013 | CN103079324A Radio frequency type efficient and high-voltage gas discharge lamp |
| 05/01/2013 | CN103076713A Projector |
| 05/01/2013 | CN101884252B Method of driving a gas-discharge lamp |
| 05/01/2013 | CN101884251B Two-wire dimmer circuit for a screw-in compact fluorescent lamp |
| 05/01/2013 | CN101668377B Cold cathode florescent lamp converter, control method thereof and control module thereof |
| 05/01/2013 | CN101594727B Scanning backlight light tube driving method for liquid crystal display |
| 05/01/2013 | CN101415284B Light source apparatus, projector, and light source apparatus drive method |
| 05/01/2013 | CN101336033B Lighting controller, light source device, projector and lighting control method |
| 04/30/2013 | US8432108 Solid state lighting, driver circuits, and related software |
| 04/30/2013 | US8432106 Microcontroller-optimized pulse-width modulation (PWM) drive of a light-emitting diode (LED) |
| 04/30/2013 | US8432105 Light control apparatus for lighting an organic electroluminescence device and lighting appliance using the same |
| 04/30/2013 | US8432104 Load current balancing circuit |
| 04/25/2013 | US20130099695 Method for operating a fluorescent lamp |
| 04/25/2013 | US20130099693 Circuit for flash lamp |
| 04/25/2013 | US20130099679 High Pressure Discharge Lamp With Auxiliary Lamp |
| 04/25/2013 | DE112005000049B4 Entladungslampen-Vorschaltgerätevorrichtung Discharge lamp Vorschaltgerätevorrichtung |
| 04/24/2013 | CN202907323U Constant-power control circuit for energy-saving electronic ballast of intelligent street lamp |
| 04/24/2013 | CN202907322U Multi-time glow starting circuit of intelligent street lamp energy-saving electronic ballast |
| 04/24/2013 | CN202907321U High power factor line suitable for metal-clad ballast |
| 04/24/2013 | CN202907320U Electronic ballast of low cost and high performance for fluorescent lamp |
| 04/24/2013 | CN202907319U High-power-factor low-cost electronic ballast for fluorescent lamp |
| 04/24/2013 | CN202907318U DC-AC inversion line system on energy-saving lamp |
| 04/24/2013 | CN202907317U Power controller for intelligent low pressure sodium lamp |
| 04/24/2013 | CN202907316U Self-ballasted variable power factor line system for energy-saving lamp |
| 04/24/2013 | CN202907315U Self-ballasted high power factor line in energy-saving lamp |
| 04/24/2013 | CN202907314U Intelligent UV power supply |
| 04/24/2013 | CN103069927A Method for operating a high-pressure discharge lamp outside the nominal power range thereof |
| 04/24/2013 | CN103068133A Lamp tube starting circuit with ultra-long service life |
| 04/24/2013 | CN103068132A Fluorescent lamp without filament |
| 04/24/2013 | CN103062738A Ballast box |
| 04/24/2013 | CN102098858B Starter of gas discharge lamp |
| 04/24/2013 | CN101917812B Metal halide lamp power supply and method for lighting metal halide lamp |
| 04/24/2013 | CN101848585B 110V passive high-power factor circuit |
| 04/24/2013 | CN101815391B Discharge lamp lighting circuit |
| 04/24/2013 | CN101502182B Monitoring device |
| 04/24/2013 | CN101351070B Ballast circuit for high-intensity discharging lamp |
| 04/24/2013 | CN101166390B Fluorescent light immunity through synchronous sampling |
| 04/23/2013 | US8427071 Light emitting diode driving device with a simple structure and an enhanced efficiency |
| 04/23/2013 | US8427069 Current-regulated power supply with soft-start protection |
| 04/23/2013 | US8427067 External resonator electrode-less plasma lamp and method of exciting with radio-frequency energy |
| 04/23/2013 | US8427066 Digitally controlled current regulator for high power solid state lighting |
| 04/23/2013 | US8427065 Driving circuit for light emitting elements |
| 04/23/2013 | US8427064 Electronic ballast circuit for fluorescent lamps |
| 04/23/2013 | US8427063 Multicolor LED sequencer |
| 04/23/2013 | US8427062 Illumination device and method for adapting an emission characteristic of an illumination device |
| 04/23/2013 | US8425053 Lighting control device and projector |
| 04/23/2013 | CA2652927C Discharge-lamp lighting device and luminaire |
| 04/23/2013 | CA2388213C Ballast with efficient filament preheating and lamp fault protection |
| 04/18/2013 | WO2013010782A3 Resonant converter control |
| 04/18/2013 | US20130095758 Adaptive inductive power supply with communication |
| 04/18/2013 | US20130093322 Ultraviolet lamp system and method for controlling emitted ultraviolet light |
| 04/18/2013 | DE112011102408T5 Blitzgerät und Verfahren zum Steuern der Farbtemperatur des Lichts in einem Blitz Flash unit and method for controlling the color temperature of light in a flash |
| 04/18/2013 | DE112011102339T5 Ultraviolettlampensystem und Verfahren zum Regeln von ausgesandtem ultraviolettem Licht Ultraviolet lamp system and method for controlling ultraviolet light ausgesandtem |
| 04/17/2013 | EP2582212A1 Method and apparatus for monitoring of current peaks in an EVG |
| 04/17/2013 | EP2580946A2 Light-emitting diode arrangement and light-emitting means, in particular with such a light-emitting diode arrangement |
| 04/17/2013 | EP2580945A1 Open circuit voltage clamp for electronic hid ballast |
| 04/17/2013 | CN202889761U Integrated illuminating system based on intelligent electronic ballasts and microprocessors |
| 04/17/2013 | CN202889760U A self arc striking circuit of a metal halide lamp power supply |
| 04/17/2013 | CN202889759U A coil placing circuit of a high-voltage arc starter |
| 04/17/2013 | CN202889758U A novel metal halide lamp main circuit |
| 04/17/2013 | CN202889757U Improved jump bulb |
| 04/17/2013 | CN202889756U Big power high pressure gas discharge lamp ballast provided with a light adjusting button |
| 04/17/2013 | CN202889755U Big power high pressure gas discharge lamp ballast provided with one power tube |
| 04/17/2013 | CN202889754U Big power high pressure gas discharge lamp ballast provided with light adjusting knob |
| 04/17/2013 | CN202889753U Big power high pressure gas discharge lamp ballast provided with three power tubes |
| 04/17/2013 | CN202889752U Big power high pressure gas discharge lamp ballast provided with two power tubes |
| 04/17/2013 | CN202889751U Packaging structure of electronic ballast |
| 04/17/2013 | CN202889324U Single pulse high voltage drive circuit with edge latch |
| 04/17/2013 | CN103052912A Projection display device and control method therefor |
| 04/17/2013 | CN103052247A Starting current limiting circuit for ultrahigh-voltage mercury lamp in photoetching equipment |
| 04/17/2013 | CN103052246A Electronic ballast with controllable power |
| 04/17/2013 | CN103052245A Domestic small-power emergency lighting lamp |
| 04/17/2013 | CN103052244A Domestic emergency fluorescent lamp |
| 04/17/2013 | CN103052202A Dimming method and dimming device |
| 04/17/2013 | CN103048887A Control circuit with constant light intensity of super-high-pressure mercury lamp in lithography equipment |
| 04/17/2013 | CN102076143B Environment-protective illumination intelligent management system |
| 04/17/2013 | CN102056384B Lamp control circuit and lamps using same |
| 04/17/2013 | CN101917811B Anti-noise jamming high-side drive circuit |
| 04/17/2013 | CN101909396B Electronic ballast and over-voltage clamping protection method thereof |
| 04/17/2013 | CN101854765B Ballast with automatic regulation of over-current protection point and lighting fixture thereof |