| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 07/20/2011 | CN201904964U Cold-cathode tube lamp with power capable of being adjusted into four levels |
| 07/20/2011 | CN201904963U Lamp end-of-life detection module, electronic ballast and illuminating device |
| 07/20/2011 | CN201904962U Improved electronic ballast |
| 07/20/2011 | CN1972547B Discharge lamp lighting apparatus |
| 07/20/2011 | CN1953629B Lamp current balancing topologies |
| 07/20/2011 | CN102132633A Ballast with lamp filament detection |
| 07/20/2011 | CN102132632A Method and system for operating a high intensity discharge lamp |
| 07/20/2011 | CN102132631A Electric discharge lamp lighting device |
| 07/20/2011 | CN102131335A Dimming control driver of cold cathode florescent lamp and dimming control method |
| 07/20/2011 | CN102131334A System and method for controlling lighting current of electronic ballast |
| 07/20/2011 | CN102130509A Apparatus for controlling integrated lighting ballasts in a series scheme |
| 07/20/2011 | CN102128366A Fluorescent lamp and method for adjusting color temperature and luminous flux of fluorescent lamp |
| 07/20/2011 | CN101513122B Variable load circuits for use with lighting control devices |
| 07/20/2011 | CN101207963B Pre-heating control apparatus for adjusting gas discharge light tube electric voltage |
| 07/19/2011 | US7982409 Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs |
| 07/19/2011 | US7982405 Igniter circuit for an HID lamp |
| 07/19/2011 | US7982404 Method and apparatus and system for adjusting power to HID lamp to control level of light output and conserve energy (ballast multi-tap power output) |
| 07/19/2011 | US7981526 Display device |
| 07/15/2011 | CA2728281A1 Dual control luminaire |
| 07/14/2011 | WO2011085275A2 Lamp end of life detection circuit |
| 07/14/2011 | WO2011033412A3 Electronic ballast with dimming circuit |
| 07/14/2011 | US20110169427 Circuit arrangement and method for operation of a discharge lamp |
| 07/14/2011 | US20110169417 Reconfigurable LED Array and Use in Lighting System |
| 07/14/2011 | US20110169412 Reflector for a lighting assembly |
| 07/14/2011 | DE102010000935A1 Synchronisierte Ansteuerung von Lampen Synchronized driving lamps |
| 07/14/2011 | CA2785557A1 Lamp end of life detection circuit |
| 07/13/2011 | EP2342949A2 Unified 0-10v and dali dimming interface circuit |
| 07/13/2011 | CN201898652U Constant power-controlled high-power-factor electronic ballast for fluorescent lamp |
| 07/13/2011 | CN1981562B Lighting system |
| 07/13/2011 | CN1780520B Converter circuit having class E converter modules |
| 07/13/2011 | CN102124818A Circuit and method for operating a high pressure lamp |
| 07/13/2011 | CN102124541A High-pressure discharge lamp |
| 07/13/2011 | CN102123555A HID (High Intensity Discharge) lamp electronic ballast and multimode control method thereof |
| 07/13/2011 | CN102123554A Lighting tube service life end protection circuit with dual-detection signals of electronic ballast and method |
| 07/13/2011 | CN102121687A Conversion structure from T8 to T5 |
| 07/13/2011 | CN101217848B A dual-frequency mixed spectrum type and pulse width regulation type dimming electronic ballast |
| 07/13/2011 | CN101137264B Light modulation device for luminous unit |
| 07/13/2011 | CN101095378B A method of and a monitoring arrangement for monitoring the mercury condensation in an arc tube |
| 07/12/2011 | US7977893 PFC and ballast control IC |
| 07/12/2011 | US7977892 Solid state lighting apparatus |
| 07/12/2011 | US7977890 Direct current power supply device, power supply device for driving LED and semiconductor integrated circuit for controlling power supply |
| 07/12/2011 | US7977889 Direct-current power supply device, power supply device for driving LED and semiconductor integrated circuit for driving power supply |
| 07/12/2011 | US7977659 Radio frequency screen assembly for microwave cavities |
| 07/12/2011 | CA2518021C Self-contained, self-snubbed, hid dimming module that exhibits non-zero crossing detection switching |
| 07/07/2011 | WO2011010818A9 Device for supplying electrostatic force |
| 07/07/2011 | US20110164414 Fluorescent lamp support |
| 07/07/2011 | US20110163695 Power supply unit and method for controlling a power supply unit |
| 07/07/2011 | US20110163686 Lighting device |
| 07/07/2011 | US20110163685 Lamp End of Life (EOL) Detection Circuit |
| 07/07/2011 | US20110163669 Dc/ac inverter substrate having voltage abnormality detector circuit |
| 07/07/2011 | DE10318870B4 Verfahren zur Vorabschätzung der Restlebensdauer einer Edelgas-Entladungslampe sowie Vorrichtung für eine Vorabschätzung der Restlebensdauer einer Edelgas-Entladungslampe Procedure for a preliminary estimate of the remaining life of a noble gas discharge lamp and apparatus for a preliminary estimate of the remaining life of a noble gas discharge lamp |
| 07/07/2011 | DE102011002407A1 Elektrische Entladungslampeneinheit An electric discharge lamp unit |
| 07/06/2011 | EP2341512A1 Integrated discharge lamp |
| 07/06/2011 | EP2340690A1 Circuit arrangement and method for operating a high pressure discharge lamp |
| 07/06/2011 | EP2340689A1 Method and circuit arrangement for making a lamp wattage available for operating at least one gas discharge lamp |
| 07/06/2011 | EP2168408B1 Method and driving unit for driving a gas-discharge lamp |
| 07/06/2011 | CN201893986U Current and power limiting circuit |
| 07/06/2011 | CN201893985U Series resonance instantaneous starting type arc preventive electronic ballast |
| 07/06/2011 | CN201893984U Military lighting fixture |
| 07/06/2011 | CN201893983U Signal generator of electrodeless lamp |
| 07/06/2011 | CN201893028U Intelligent parking signboard |
| 07/06/2011 | CN201892057U Integrated energy-saving lamp |
| 07/06/2011 | CN1802880B Light output modulation for data transmission |
| 07/06/2011 | CN1780526B Electronic assembly with a heat sink |
| 07/06/2011 | CN1709014B Igniting pulse booster circuit |
| 07/06/2011 | CN102118914A Two-way line output device |
| 07/06/2011 | CN101263747B Method for operating a high-intensity discharge lamp, lamp driver and projection system |
| 07/06/2011 | CN101164384B Self-exciting step-up converter |
| 07/06/2011 | CN101146393B Ignition of gas discharge lamps in variable ambient conditions |
| 07/05/2011 | US7973491 Multi-lamp backlight apparatus |
| 07/05/2011 | US7973490 HID lighting control with transient voltage sensing and lamp restarting, and method of making and using |
| 07/05/2011 | US7973489 Lighting system for illumination using cold cathode fluorescent lamps |
| 07/05/2011 | US7973261 Cooling structure for plasma lighting system |
| 06/30/2011 | WO2011076522A1 Resonance circuitry for a field emission lighting arrangement |
| 06/30/2011 | US20110156610 Phase control with adaptive parameters |
| 06/30/2011 | US20110156609 Fluorescent lamp for lighting applications |
| 06/30/2011 | US20110156608 Light tube and power supply circuit |
| 06/30/2011 | US20110156607 DC/AC Inverter |
| 06/30/2011 | US20110156604 Driving circuit of light emitting diode |
| 06/29/2011 | EP2339897A2 High pressure discharge lamp lighting device and illumination fixture using the same |
| 06/29/2011 | EP2339896A2 High pressure discharge lamp lighting device and illumination fixture |
| 06/29/2011 | EP2338317A1 Low cost compact size single stage high power factor circuit for discharge lamps |
| 06/29/2011 | EP2130413B1 Method of ignition regulation of discharge lamp and the corresponding electronic ballast circuit |
| 06/29/2011 | CN201888007U Intelligent streetlamp energy-saving control system based on single-chip microcomputer |
| 06/29/2011 | CN201888006U Intelligent dimming high frequency electronic discharge lamp for road lighting |
| 06/29/2011 | CN201888005U Automatic light-sensitive dimming electricity-saving control device |
| 06/29/2011 | CN201888004U Voltage regulating device for UV drier |
| 06/29/2011 | CN201888003U Power supply module |
| 06/29/2011 | CN201888002U Circuit for electronic ballast of miniwatt compact fluorescent lamp |
| 06/29/2011 | CN201888001U Two-end rectifying fluorescent lamp |
| 06/29/2011 | CN201888000U Electronic ballast with novel positive-negative voltage multiplying series ignition circuit structure |
| 06/29/2011 | CN201887999U Electronic ballast with novel auxiliary winding serial-type igniting circuit structure |
| 06/29/2011 | CN201887998U Abnormal protective circuit |
| 06/29/2011 | CN201887997U Fluorescent lamp for automatically controlling brightness |
| 06/29/2011 | CN201887996U Integrated high frequency generator for high-frequency electromagnetic induction gas discharge lamp |
| 06/29/2011 | CN1984520B Modular protector of electronic positioner |
| 06/29/2011 | CN1856207B Improved control system for fluorescent light fixture |
| 06/29/2011 | CN1781168B Apparatus for supplying energy to a load and a related system |
| 06/29/2011 | CN102113417A 高电压脉冲发生器和带有高电压脉冲发生器的高压放电灯 High-voltage and high-voltage pulse generator with a high voltage pulse generator discharge lamp |
| 06/29/2011 | CN102111947A Intelligent control system for emergency lighting electroless lamp |