| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 04/17/2014 | WO2014056670A1 Method for operating a lamp unit for producing ultraviolet radiation and suitable lamp unit for this purpose |
| 04/17/2014 | WO2012109350A3 Electrodeless plasma lamp with variable voltage power supply |
| 04/17/2014 | US20140103836 Electronic ballast or operating device for illumination means having programmable or configurable control unit |
| 04/17/2014 | DE102012020352A1 Switching device for gas discharge lamp, has switch which is turned ON for measuring physical size of heating coils, and control switch that is turned ON for controlling heating coils |
| 04/16/2014 | EP2720514A1 Voltage regulator apparatus and power conditioning apparatus incorporating such voltage regulator apparatus |
| 04/16/2014 | EP2719259A1 Method for operating an electronic ballast for a luminous means, and electronic ballast |
| 04/16/2014 | CN203554773U Combined light modulating circuit |
| 04/16/2014 | CN203554772U Xenon lamp stabilizer provided with double-line output transformer |
| 04/16/2014 | CN103733732A Lamp assembly and circuits for protection against miswiring in a lamp controller |
| 04/16/2014 | CN103731965A Drive circuit for achieving good flickering effect of pulse xenon lamp |
| 04/16/2014 | CN102665369B High-power electronic ballast |
| 04/16/2014 | CN102307422B System and method for replacing ballast in a lighting control system |
| 04/16/2014 | CN102238793B Control circuit and control method of high-strength gas discharge lamp |
| 04/16/2014 | CN102238791B Electronic ballast circuit for energy-saving lamps |
| 04/16/2014 | CN102131334B System and method for controlling lighting current of electronic ballast |
| 04/16/2014 | CN101946565B Starting device with two input poles |
| 04/16/2014 | CN101902865B Double-end driving circuit for LCD backlight and method thereof |
| 04/16/2014 | CN101873755B Discharge lamp lighting device and illuminator |
| 04/16/2014 | CN101815379B Pulse width modulation control device |
| 04/16/2014 | CN101766061B Electronic ballast and method for operating at least one discharge lamp |
| 04/15/2014 | US8698422 Average current controller |
| 04/15/2014 | US8698420 LED drive circuit, LED lamp, LED lighting appliance, and LED lighting system |
| 04/15/2014 | US8698419 Circuits and methods for driving light sources |
| 04/15/2014 | US8698416 Continuous dimming AC LED device |
| 04/15/2014 | US8698413 RF induction lamp with reduced electromagnetic interference |
| 04/15/2014 | US8698412 High intensity discharge ballast configured to accommodate wide range of input and output characteristics |
| 04/15/2014 | US8698411 Discharge lamp lighting apparatus |
| 04/15/2014 | US8698407 Highly integrated non-inductive LED driver |
| 04/15/2014 | US8698406 Adaptive circuit |
| 04/15/2014 | US8698405 User interface with circular light guided ring with adaptive appearance depending on function |
| 04/10/2014 | DE102012109519A1 Verfahren zum Betreiben einer Lampeneinheit zur Erzeugung ultravioletter Strahlung sowie geeignete Lampeneinheit dafür Method for operating a lamp unit for generating ultraviolet radiation as well as suitable for this lamp unit |
| 04/10/2014 | DE102004037389C5 Verfahren zur Ansteuerung einer eine Leuchtstofflampe aufweisenden Last zur Optimierung des Zündvorganges A method for driving a fluorescent lamp having a load to optimize the ignition |
| 04/09/2014 | CN203537650U Electrodeless lamp linear dimming driving circuit |
| 04/09/2014 | CN203537649U Electrodeless lamp automatic timed dimming driving circuit |
| 04/09/2014 | CN203537648U Simple sound control time-delay lamp |
| 04/09/2014 | CN203537647U Hot-cathode type fluorescent lamp filament preheating starting control circuit |
| 04/09/2014 | CN203537646U Electrodeless lamp triggering driving circuit |
| 04/09/2014 | CN203537645U Induction type HID electronic trigger circuit and HID light fixture |
| 04/09/2014 | CN203537644U Inductive variable-power ballast for sodium lamp |
| 04/09/2014 | CN203537643U Electronic ballast being capable of wireless communication and having USB interface |
| 04/09/2014 | CN203537642U Light-adjusting electrodeless lamp electronic ballast with closed-loop controllable |
| 04/09/2014 | CN203533476U Electrodeless lamp with emergency function |
| 04/09/2014 | CN103718651A Light source device and control method for light source device |
| 04/09/2014 | CN103716973A Controller of gas discharge lamp having inductive ballast |
| 04/09/2014 | CN102378459B Discharge lamp lighting circuit |
| 04/09/2014 | CN101917813B Post-stage drive circuit used for HID electronic ballast |
| 04/08/2014 | US8692480 Power supply unit and method for controlling a power supply unit |
| 04/08/2014 | US8692478 Current balancing circuit |
| 04/08/2014 | US8692477 Method and circuit for detecting short circuit in an asynchronous DC-DC boost converter |
| 04/08/2014 | US8692476 Boost circuit for LED backlight driver circuit |
| 04/08/2014 | US8692166 Substrate heating device and substrate heating method |
| 04/08/2014 | US8689756 Method for generating and applying a cleaning voltage pulse to a stop connection, and an associated digitally controlled magnetic ignition circuit |
| 04/03/2014 | WO2014052079A1 Lamp fixture with onboard memory, and corresponding lamp driving system |
| 04/03/2014 | WO2014051898A1 End of life protection for voltage fed ballast |
| 04/03/2014 | WO2014009861A3 Method of controlling a lighting device |
| 04/03/2014 | US20140091726 Filament Miswire Protection In An Electronic Dimming Ballast |
| 04/03/2014 | US20140091722 Method and Apparatus for Measuring Operating Characteristics in a Load Control Device |
| 04/03/2014 | US20140091713 Low pressure lamp using non-mercury materials |
| 04/02/2014 | CN203523128U Central control-based fire emergency lamp equipped with own cell |
| 04/02/2014 | CN203523127U Repeatedly ignited electronic ballast of electrodeless lamp |
| 04/02/2014 | CN203523126U Integrated starting device of energy saving lamp |
| 04/02/2014 | CN103702501A Self-ballasting type drive connection circuit adopting double CCFLs (Cold Cathode Fluorescent Lamps) |
| 04/02/2014 | CN103702500A Power control circuit for ballast of fluorescent lamp |
| 04/02/2014 | CN103702499A Lighting device based on cold cathode lamp tube driven by electronic ballast |
| 04/02/2014 | CN103702498A On-line adjustable filament voltage source circuit for magnetic deflection mass spectrometer |
| 04/02/2014 | CN103702497A Instant-start ballast and ceramic metal halide lamp thereof |
| 04/02/2014 | CN103702496A Service life end protector for voltage feed ballast |
| 04/02/2014 | CN103702491A LED (Light Emitting Diode) driving control device |
| 04/02/2014 | CN102548163B Combined lamp controlling system |
| 04/02/2014 | CN102026462B Mining area illumination energy-saving device and energy-saving method thereof |
| 04/02/2014 | CN101965756B Type recognition of a gas discharge lamp to be operated with an electronic ballast |
| 04/02/2014 | CN101849441B Ballast for a gas discharge lamp, for example an HID lamp |
| 04/02/2014 | CN101816219B Method for determining operational parameters for a gas discharge lamp to be operated with electronic ballast and corresponding ballast |
| 04/01/2014 | US8687109 Image capturing device having pulsed LED flash |
| 04/01/2014 | US8686668 Current offset circuits for phase-cut power control |
| 04/01/2014 | US8686667 Lighting power source with controlled charging operation for driving capacitor |
| 04/01/2014 | US8686665 Method and system for lighting control and monitoring |
| 04/01/2014 | US8686664 Method and system for automated lighting control and monitoring |
| 04/01/2014 | US8686661 LED dimming method and LED dimming system |
| 04/01/2014 | US8686660 OLED with integrated delay structure |
| 04/01/2014 | US8686653 LED backlight driving method, liquid crystal display device and LED backlight driving circuit |
| 04/01/2014 | US8686651 Multiple stage sequential current regulator |
| 04/01/2014 | US8686642 Stabilized high brightness LED suitable as calibration standard |
| 04/01/2014 | US8684539 Semiconductor light source device, semiconductor light source control method, and projection apparatus |
| 03/27/2014 | DE102012018854A1 Planar gas discharge lamp for dielectrically impeded discharges for representing e.g. symbols, has gas chambers, and switching device provided for alternatively connecting first electrode with second and third electrodes |
| 03/26/2014 | EP2712280A1 Light source apparatus, projector, and light source apparatus drive method |
| 03/26/2014 | EP2712275A1 LED Fluorescent Lamp |
| 03/26/2014 | EP2710863A2 System and method for ignition and operation of a high-intensity discharge lamp |
| 03/26/2014 | EP2710862A1 Method and apparatus for determining a target light intensity from a phase-control signal |
| 03/26/2014 | CN203504867U DALI protocol main controller |
| 03/26/2014 | CN203504866U Electronic ballast circuit |
| 03/26/2014 | CN203504865U Tandem type electronic rectifier |
| 03/26/2014 | CN203504864U DC current electronic ballast |
| 03/26/2014 | CN203504863U Driving control circuit of inductance ballast |
| 03/26/2014 | CN203504862U High pressure gas discharge lamp ballast |
| 03/26/2014 | CN103688596A Daylight sensing arrangement for a hybrid luminaire |
| 03/26/2014 | CN103687262A Intelligent lighting control device for container yard |
| 03/26/2014 | CN103687261A Plasma flat light source driving method |
| 03/26/2014 | CN103687260A Open-circuit protection circuit and navaid lamp |
| 03/26/2014 | CN103687259A Inverter protective circuit for lamp tube falling out |