| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 07/15/2009 | CN101483958A Method for repeated starting electronic ballast for fluorescent lamp |
| 07/15/2009 | CN101483957A Energy saving light source igniting circuit |
| 07/15/2009 | CN101483956A Low frequency full bridge circuit used for ceramic metal halogen lamp electric ballast |
| 07/15/2009 | CN101483955A Fluorescent lamp starting apparatus, and fluorescent lamp with the apparatus |
| 07/15/2009 | CN100515157C Electronic ballast for a discharge lamp |
| 07/15/2009 | CN100515156C Soft starting electronic ballast |
| 07/15/2009 | CN100515155C Ballast of random noise and sawtooth wave composite frequency modulation for gold halogen lamp |
| 07/15/2009 | CN100514829C Current overload and voltage detection in a central point |
| 07/15/2009 | CN100514140C Apparatus and method of driving lamp of liquid crystal display device |
| 07/14/2009 | USRE40843 Electronic dimmable ballast for high intensity discharge lamp |
| 07/14/2009 | US7560875 Balancing transformers for multi-lamp operation |
| 07/14/2009 | US7560873 Method for detection of non-zero-voltage switching operation of a ballast of fluorescent lamps, and ballast |
| 07/14/2009 | US7560872 DC-AC converter having phase-modulated, double-ended, half-bridge topology for powering high voltage load such as cold cathode fluorescent lamp |
| 07/14/2009 | US7560871 Ballast with socket-to-fixture voltage limiting |
| 07/14/2009 | US7560867 Starter for a gas discharge light source |
| 07/14/2009 | CA2271446C Circuit arrangement for operating electrical lamps |
| 07/09/2009 | WO2009084759A1 The electrode for hot cathode fluorescent lamp |
| 07/09/2009 | WO2009084569A1 Electric discharge lamp lighting device, projector and method for controlling electric discharge lamp lighting device |
| 07/09/2009 | WO2009056431A3 A ballast circuit |
| 07/09/2009 | WO2008148725A3 High-pressure discharge lamp comprising a high-voltage impulse generator and method for producing a high-voltage impulse generator |
| 07/09/2009 | US20090174644 Liquid crystal display device having an improved backlight |
| 07/09/2009 | US20090174346 Lighting Apparatus for a Gaming Machine Cabinet |
| 07/09/2009 | US20090174345 Power supply circuit |
| 07/09/2009 | US20090174344 Offline control circuit of led driver to control the maximum voltage and the maximum current of leds |
| 07/09/2009 | US20090174342 Electronic light generating element light bulb |
| 07/09/2009 | US20090174341 Cold-cathode fluorescent lamp (ccfl) current control circuit |
| 07/09/2009 | US20090174340 Direct-current power supply device, power supply device for driving led and semiconductor integrated circuit for controlling power supply |
| 07/09/2009 | US20090174339 High-efficiency single-ended forward-flyback electronic driver for barrier discharge lamps |
| 07/09/2009 | US20090174336 Piezoelectric cascade resonant lamp-ignition circuit |
| 07/09/2009 | US20090174335 High-voltage lamp-ignition piezoelectric oscillator |
| 07/09/2009 | US20090174334 Apparatus for radiating an object with uv radiation |
| 07/09/2009 | US20090174330 Circuit arrangement and method of driving a high-pressure gas discharge lamp |
| 07/09/2009 | DE102007063156A1 Bestrahlungssystem für Solarien Irradiation system for solariums |
| 07/08/2009 | EP2077699A2 Piezoelectric resonant lamp-ignition circuit |
| 07/08/2009 | EP1625565A4 Active matrix type display apparatus |
| 07/08/2009 | EP1312099B1 Self-powered switching device |
| 07/08/2009 | CN201270615Y Automobile light energy saving device |
| 07/08/2009 | CN201270614Y Energy saving device for lighting |
| 07/08/2009 | CN201270613Y Electronic ballast for fluorescent lamp |
| 07/08/2009 | CN201270612Y Arc column shaped color separation controllable fluorescent light source used for fruit and vegetable visual selection |
| 07/08/2009 | CN101480109A Method and system for operating a discharge lamp such as to detect defective operation of the lamp |
| 07/08/2009 | CN101480108A Electric discharge lamp device and lighting apparatus |
| 07/08/2009 | CN101478855A Lamp light brightness regulating apparatus and method thereof |
| 07/08/2009 | CN101478854A Electromagnetic interference high frequency band attenuation adding circuit for electric ballast |
| 07/08/2009 | CN100512590C Method and apparatus for driving a discharge lamp by using dc/ac converter |
| 07/08/2009 | CN100512589C Sound resonant suppressing method for high strength gas discharging lamp |
| 07/08/2009 | CN100511913C Self-adapting inductive power supply with communication ability |
| 07/08/2009 | CN100511081C Method and circuit for active power factor correction |
| 07/08/2009 | CN100510508C Condition responsive lighting fixture for construction junction box |
| 07/07/2009 | US7558081 Basic halogen convertor IC |
| 07/07/2009 | US7557523 Discharge lamp lighting device, and lighting equipment and lighting system using the device |
| 07/07/2009 | US7557522 Preheat control device for modulating voltage of gas-discharge lamp |
| 07/07/2009 | US7557521 LED power control methods and apparatus |
| 07/07/2009 | US7557518 Solid-state, color-balanced backlight with wide illumination range |
| 07/07/2009 | US7557517 Primary side current balancing scheme for multiple CCF lamp operation |
| 07/07/2009 | US7557516 Resonant inverter |
| 07/07/2009 | US7557513 Discharge lamp lighting circuit |
| 07/07/2009 | CA2653481A1 Piezoelectric resonant lamp-ignition circuit |
| 07/07/2009 | CA2308947C Circuit arrangement for igniting a lamp |
| 07/02/2009 | WO2009081668A1 Lighting equipment |
| 07/02/2009 | WO2009079944A1 Adaptive fluorescent lamp driver circuit |
| 07/02/2009 | WO2009064099A3 Apparatus for connecting led lamps into lighting instruments of a fluorescent lamp |
| 07/02/2009 | WO2009019624A3 Lamp driving circuit |
| 07/02/2009 | US20090167211 Method of driving a discharge lamp, and driving unit |
| 07/02/2009 | US20090167209 Circuit arrangement and method for operating at least one electric lamp |
| 07/02/2009 | US20090167203 AC-powered, microprocessor-based, dimming LED power supply |
| 07/02/2009 | US20090167202 AC Light Emitting Diode And AC Led Drive Methods And Apparatus |
| 07/02/2009 | US20090167201 Light source and methods for microscopy and endoscopy |
| 07/02/2009 | US20090167200 Switching power converter with controlled startup mechanism |
| 07/02/2009 | US20090167183 Plasma lamp with dielectric waveguide |
| 07/01/2009 | EP2074871A2 Lamp driving circuit, and detection circuit for detecting an end-of-life condition |
| 07/01/2009 | EP2074870A2 Device for driving a gas discharge lamp |
| 07/01/2009 | EP1872632B1 Electronic ballast with phase dimmer detection |
| 07/01/2009 | EP1747703B1 Method and circuit arrangement for the operation of a discharge lamp |
| 07/01/2009 | EP1467601B1 High-pressure discharge lamp operation apparatus and high-pressure discharge lamp operation method |
| 07/01/2009 | CN201267050Y Electronic light regulator |
| 07/01/2009 | CN201267049Y Device for controlling light modulation power of gas discharge light source |
| 07/01/2009 | CN201267048Y Electric ballast for fluorescent lamp |
| 07/01/2009 | CN201267047Y Electronic energy-saving fluorescent lamp ballast |
| 07/01/2009 | CN201267046Y Zigbee wireless monitoring HID electric ballast device |
| 07/01/2009 | CN201267045Y 背光模块 Backlight module |
| 07/01/2009 | CN201267044Y Daylight lamp circuit not using starter |
| 07/01/2009 | CN201267043Y Electrodeless lamp controller |
| 07/01/2009 | CN201267042Y HID digital energy-saving integrated controller outer shell |
| 07/01/2009 | CN101473704A Piezoelectric transformer light adjusting noise reduction circuit |
| 07/01/2009 | CN101473703A Portable communication device equipped with an electronic flash having a LED ignition device |
| 07/01/2009 | CN101473702A Piezoelectric transformer light adjusting noise reduction circuit |
| 07/01/2009 | CN101472376A Electric ballast and control method for limiting firing current |
| 07/01/2009 | CN101472375A High-frequency constant current source converter of neon |
| 07/01/2009 | CN101472374A High-frequency constant current source converter of neon |
| 07/01/2009 | CN101472373A Mixing bridge type electric ballast |
| 07/01/2009 | CN101472372A Electric ballast for ring shaped lamp |
| 07/01/2009 | CN100508688C Pulse xenon lamp with driving power |
| 07/01/2009 | CN100508687C A fluorescent lamp filament preheating startup apparatus based on frequency conversion technique and design method thereof |
| 07/01/2009 | CN100508686C Lamp life detection and protection apparatus |
| 07/01/2009 | CN100508685C Microcomputer controlled intelligent contactor |
| 07/01/2009 | CN100508684C Electronic controller for large power gas discharge lamp |
| 07/01/2009 | CN100508683C A electric ballast for water treatment system UV bulb |
| 07/01/2009 | CN100508682C Dual L seamless high power electronic ballast housing |
| 06/30/2009 | US7554370 Method and system for synchronizing phase of triangular signal |