| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 12/25/2013 | CN203368882U Automobile xenon lamp ballast |
| 12/25/2013 | CN203368881U High precision 5MW klystron filament power supply |
| 12/25/2013 | CN203368880U Intelligent chip variable-frequency preheating type electronic ballast |
| 12/25/2013 | CN203368879U Ballast shell |
| 12/25/2013 | CN203363715U Closed-type HID plant irradiation light fixture with high borosilicate glass elliptic surface reflector |
| 12/25/2013 | CN103477719A Instant start ballast system |
| 12/25/2013 | CN103477148A End cap for a tubular light source |
| 12/25/2013 | CN103476635A A circuit for discharging at input stage of a driver IC |
| 12/25/2013 | CN103476194A Secondary dimming method of pulse width modulation of gas discharge lamp |
| 12/25/2013 | CN103476193A Tunnel illumination dimming control system and control method |
| 12/25/2013 | CN103476192A Three-phase load control circuit capable of boosting voltage |
| 12/25/2013 | CN103476191A Ballast of gas discharge lamp |
| 12/25/2013 | CN103474325A Tungsten halogen style rapid start energy-saving lamp |
| 12/25/2013 | CN103474324A Compact fluorescent lamp |
| 12/25/2013 | CN102595749B Pulse continuous dual-purpose high-speed photography lighting device |
| 12/25/2013 | CN102324726B Abnormal protection circuit of electronic ballast |
| 12/25/2013 | CN102291912B Multi-frequency oscillator having dead time in electronic ballast |
| 12/25/2013 | CN102057758B Multi-lamps instant start electronic ballast |
| 12/25/2013 | CN101965088B Discharge lamp lighting device, projector, and driving method of discharge lamp |
| 12/25/2013 | CN101521975B Deuterium lamp power control circuit used for atomic absorption spectrophotometer |
| 12/24/2013 | US8614552 Detection of the position of an ELV dimmer for controlling operation of an isolated electrical load |
| 12/24/2013 | US8614543 Light source |
| 12/19/2013 | WO2013185157A1 Power factor correction circuit, control unit for an illuminant and method for controlling a power factor correction circuit |
| 12/19/2013 | WO2013152374A3 Method for controlling a power factor correction circuit, power factor correction circuit and operating device for a lamp |
| 12/19/2013 | US20130334962 Discharge lamp lighting device, automotive high-intensity discharge lamp lighting device, automotive headlight device, and car |
| 12/18/2013 | CN203352925U An electrical ballast with multiple power gears |
| 12/18/2013 | CN203352924U Dual fluorescent tube ballast with service lifetime end protection |
| 12/18/2013 | CN203352923U Delayed-start electronic ballast |
| 12/18/2013 | CN203352922U Thermal trigger of metal halide lamp |
| 12/18/2013 | CN103458597A Voltage type power adjusting device of electronic ballast of xenon lamp and using method thereof |
| 12/18/2013 | CN103458596A Direct-current UV switching power supply for UV lamp tube |
| 12/18/2013 | CN103458595A Dual-frequency magnetic filed intersecting method and fluorescent lamp triggered by same |
| 12/18/2013 | CN103458594A HID lamp acoustic resonance restraining method and ballast |
| 12/18/2013 | CN103458593A Closed-loop controllable light-dimming electrodeless lamp electronic ballast and method thereof for adjusting luminance of electrodeless lamp |
| 12/18/2013 | CN103458592A Method for triggering fluorescent lamp by means of magnetic field and fluorescent lamp using method |
| 12/18/2013 | CN103456599A Projector light source and driving device and driving method of projector light source |
| 12/18/2013 | CN103455029A Short arc extra-high voltage projection lamp driver detector |
| 12/18/2013 | CN102196653B Xenon lamp circuit and intelligent controller thereof |
| 12/18/2013 | CN102111947B Intelligent control system for emergency lighting electroless lamp |
| 12/17/2013 | US8610378 LED anti-collision light having a xenon anti-collision light power supply |
| 12/17/2013 | US8610366 Lighting ballast and method for balancing multiple independent resonant tanks |
| 12/17/2013 | US8610365 Switching power converter input voltage approximate zero crossing determination |
| 12/17/2013 | US8610358 Electrostatic discharge protection for luminaire |
| 12/12/2013 | US20130328485 Apparatus and method for driving fluorescent lamp |
| 12/11/2013 | CN203340393U Lighting device with constant optical power |
| 12/11/2013 | CN203340392U Remote control energy-saving lamp |
| 12/11/2013 | CN203340391U Ballast for water-treatment ultraviolet lamp with switch socket |
| 12/11/2013 | CN203340390U Power supply circuit of HID lamp |
| 12/11/2013 | CN203340389U Deuterium lamp power supply |
| 12/11/2013 | CN203336409U Tower-shaped ceiling-mounted lamp |
| 12/11/2013 | CN203331936U Decoding circuit for non-halogen lamp serving as automobile lamp |
| 12/11/2013 | CN103442506A Weak light with high frequency controller |
| 12/11/2013 | CN103442505A Dimming electrodeless lamp electronic ballast based on dual control and method for adjusting brightness of electrodeless lamp |
| 12/11/2013 | CN102448235B Device and method for driving fluorescent lamp tube |
| 12/11/2013 | CN102325418B Power supply device for driving multipath high-power xenon lamps and current returning method thereof |
| 12/11/2013 | CN102186297B Control device for preheating lamp filament of preheating cathode type fluorescent lamp before starting |
| 12/11/2013 | CN102026459B Drive circuit of cold-cathode fluorescence lamp |
| 12/11/2013 | CN101868105B Electronic ballast and overvoltage protection method thereof |
| 12/11/2013 | CN101754548B 一种电子镇流器 An electronic ballast |
| 12/10/2013 | US8604719 Light-emitting element driving circuit system |
| 12/10/2013 | US8604712 LED luminaires power supply |
| 12/10/2013 | US8604708 Voltage-controlled light diffusing module, flash lamp module and controlling method thereof based on face information |
| 12/10/2013 | US8604701 Systems and method for lighting aisles |
| 12/10/2013 | US8602566 Method and electronic operating device for operating a gas discharge lamp and projector |
| 12/05/2013 | WO2013179134A1 Ballast with battery backup |
| 12/05/2013 | WO2013136187A3 Rf activation of uv lamp for water disinfection |
| 12/05/2013 | WO2012151712A8 Improved programmed start circuit for ballast |
| 12/05/2013 | US20130320877 Remote Control of a Legacy Fluorescent Lamp Fixture |
| 12/05/2013 | US20130320876 Rejecting Noise Transients While Turning Off a Fluorescent Lamp Using a Starter Unit |
| 12/05/2013 | DE102012017543B3 Flash system for use in scientific application, has filter unit e.g. high pass filter that is provided for separating communication signal in generator device |
| 12/04/2013 | EP2670224A1 Discharge lamp lighting device, automotive high-intensity discharge lamp lighting device, automotive headlight device, and car |
| 12/04/2013 | EP2556724B1 Method of striking a lamp in an electronic dimming ballast circuit |
| 12/04/2013 | CN203327352U Stepless adjustment circuit of lamp power |
| 12/04/2013 | CN203327351U Power control system |
| 12/04/2013 | CN203327350U Plasma sodium light source one-board-integrated circuit |
| 12/04/2013 | CN203327349U Low frequency electrodeless lamp electronic ballast capable of automatically adjusting output frequency |
| 12/04/2013 | CN203322803U Lactation period dairy cow supplementary lighting system based on electromagnetic induction lamp |
| 12/04/2013 | CN103430628A A method of driving a gas-discharge lamp |
| 12/04/2013 | CN103428982A Light intensity self-adjusting circuit for fluorescence fiber stimulation |
| 12/04/2013 | CN103428981A Autotransformer based load control circuit |
| 12/04/2013 | CN103428980A Load control circuit based on autotransformer |
| 12/04/2013 | CN103428979A System and method for providing power for high-strength gas discharge lamp |
| 12/04/2013 | CN103428978A Lamp drive circuit and lamp using circuit |
| 12/04/2013 | CN103428977A Low voltage energy saving lamp |
| 12/04/2013 | CN103428976A Novel efficient fluorescent lamp preheating starting circuit |
| 12/04/2013 | CN103428975A LC ballast |
| 12/04/2013 | CN103426683A Time relay used for metal halide lamp loads |
| 12/04/2013 | CN102017810B Method for operating a gas discharge lamp and lighting system comprising a gas discharge lamp |
| 12/04/2013 | CN101854767B High pressure discharge lamp light source device |
| 12/04/2013 | CN101714497B Excimer lamp apparatus |
| 12/04/2013 | CN101300906B Drive circuit for a switchable heating transformer of an electronic ballast and corresponding method |
| 12/03/2013 | US8599119 Backlight device and display device |
| 12/03/2013 | US8598806 Systems and methods for intelligent control of cold-cathode fluorescent lamps |
| 12/03/2013 | US8598802 Triac dimmer compatible WLED driving circuit and method thereof |
| 12/03/2013 | US8598801 Electric supply device |
| 12/03/2013 | US8598800 Control circuit for switching power supply |
| 12/03/2013 | US8598799 Alternating current light emitting device |
| 12/03/2013 | US8598735 Control unit for controlling an illumination device for a motor vehicle as well as an illumination device for a motor vehicle with such a control unit |
| 12/03/2013 | CA2661628C Discharge lamp lighting device and lighting fixture |
| 11/28/2013 | WO2013177167A1 Method and apparatus for controlling a lighting device |