| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 10/09/2001 | US6300724 System and method for controlling rare gas illumination |
| 10/09/2001 | US6300723 Apparatus for power factor control |
| 10/09/2001 | US6300722 Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method |
| 10/09/2001 | US6300719 Drive scheme for low pressure gas discharge lamps |
| 10/09/2001 | US6300716 High-intensity discharge lamp, high-intensity discharge lamp device, high-intensity discharge lamp lighting circuit and lighting system |
| 10/04/2001 | WO2001074122A1 Semi-light fitting for changing over from inductive lamps to electronic t5-luminous substance lamps |
| 10/04/2001 | WO2001015202A3 Method of and system for closed loop control of fluorescent lamps |
| 10/04/2001 | US20010026132 Starting device for a discharge lamp |
| 10/04/2001 | EP1139700A1 Feeding device for discharge lamp |
| 10/04/2001 | EP1139699A1 Arrangement for the suppression of current harmonics for electronic power supplies of compact fluorescent lamps |
| 10/04/2001 | EP1138177A1 Modular master-slave power supply controller |
| 10/04/2001 | DE10042133A1 Semileuchte zum Umrüsten von induktiven Leuchten auf elektronische T5-Leuchtstofflampen Semi light for conversion of inductive lamps to electronic T5 fluorescent lamps |
| 10/04/2001 | DE10016402A1 Mains supply circuit with rectifier and switched output quantities for coupling up to current and voltage, e.g. for gas discharge lamp, has two synchronous phase-locked alternating sources connected to bridge rectifiers wired in parallel. |
| 10/04/2001 | DE10015527A1 Verfahren und Vorrichtung zum Betrieb einer UV-Strahlenquelle Method and apparatus for operating a UV radiation source |
| 10/04/2001 | DE10012082A1 Circuit for setting lamp current has source providing control voltage outside evaluation range with dimmer input open; push button switch can be used as dimming signal generator |
| 10/03/2001 | CN2452245Y High-frequency electronic ballast |
| 10/03/2001 | CN2452244Y 一种电子镇流器 An electronic ballast |
| 10/03/2001 | CN2452243Y 荧光灯电子镇流器 Electronic Ballast |
| 10/03/2001 | CN2452242Y High-frequency electronic ballast |
| 10/03/2001 | CN2452241Y Passive power factor correct module |
| 10/03/2001 | CN1316174A Flyback converter as LED driver |
| 10/03/2001 | CN1315820A Duplex-controlled light regulating ballast |
| 10/03/2001 | CN1072365C High-speed charge system of flash lamp for camera |
| 09/27/2001 | US20010024379 Inverter transformer |
| 09/27/2001 | DE10013342A1 Producing ignition voltage for fluorescent lamps involves applying start voltages of reducing frequency until lamp voltage reaches desired value |
| 09/27/2001 | DE10013279A1 Monitoring input voltage of electronic voltage adapter for fluorescent lamp involves controlling adapter according to amplitude and/or type of input voltage |
| 09/27/2001 | DE10013041A1 Operating light with fluorescent lamp involves setting manufacturer's rated loading for detected lamp type in normal operation, reducing/ending if critical temperature reached/exceeded |
| 09/26/2001 | EP1137017A2 Inverter Transformer |
| 09/26/2001 | EP1136749A1 Illumination device |
| 09/26/2001 | EP1135975A1 Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method |
| 09/26/2001 | CN2450849Y Electronic ballast of constant power gas discharge lamp |
| 09/26/2001 | CN1315127A Circuit arrangement |
| 09/26/2001 | CN1314611A Autoamtic light regulating flash device |
| 09/26/2001 | CN1071953C Push-pull phase inverters |
| 09/26/2001 | CN1071921C Coil apparatus |
| 09/25/2001 | US6294883 Method and apparatus for fast heating cold cathode fluorescent lamps |
| 09/25/2001 | US6294882 Circuit arrangement with improved power-factor for feeding a discharge lamp |
| 09/25/2001 | US6294881 Discharging tube with piezoelectric substrate |
| 09/25/2001 | US6294880 Protection device in a hid lamp ignition circuit |
| 09/25/2001 | US6294879 Ballast for a discharge lamp |
| 09/25/2001 | US6294878 Piezoelectric transformer, piezoelectric inverter and liquid crystal display |
| 09/20/2001 | WO2001069986A1 Method and circuit arrangement for producing an ignition voltage for fluorescent lamps |
| 09/20/2001 | WO2001069985A1 Switching ballast device |
| 09/20/2001 | WO2001069984A2 Method and apparatus of an improved electronics ballast circuit |
| 09/20/2001 | WO2001069975A2 Method for monitoring the input voltage of an electronic ballast for operating fluorescent lamps |
| 09/20/2001 | WO2001069649A1 Phase controlled multi-electrode type ac discharge light source |
| 09/20/2001 | WO2001069614A1 Electronic low-voltage neon transformer device |
| 09/20/2001 | US20010022501 Device for controlling light sources having a ballast |
| 09/20/2001 | DE10013018A1 Elektronischer Dimmer und Verfahren zum Betreiben des Dimmers Electronic dimmer and method of operating the dimmer |
| 09/20/2001 | DE10012144A1 Circuit for saving energy with fluorescent lamps has plug-on sleeve with contact points in housing; fitting sleeve on lamp pin connects inductance or capacitance in series with supply voltage |
| 09/19/2001 | EP1135010A2 Starting device for discharge lamp |
| 09/19/2001 | EP1135009A2 Starting device for discharge lamp |
| 09/19/2001 | EP1135008A1 Discharge lamp lighting device |
| 09/19/2001 | EP1135007A1 Electronic dimmer and process for carrying out the dimming |
| 09/19/2001 | EP1135006A1 Method, system and detection module to monitor remotely faults in a gas lamp lighting system for preventive maintenance |
| 09/19/2001 | EP1135005A2 Device for controlling light sources with ballast |
| 09/19/2001 | EP1134784A2 High-pressure mercury lamp luminescent device and means of ignition |
| 09/19/2001 | EP1133900A1 Electronic system for generating and controlling light effects on projectors |
| 09/19/2001 | CN1314002A Fluorescent lamp |
| 09/18/2001 | US6292339 Output protection for arc discharge lamp ballast |
| 09/18/2001 | US6291974 Electronic strobe |
| 09/18/2001 | US6291947 Circuit arrangement for operating at least one discharge lamp |
| 09/18/2001 | US6291946 System for substantially eliminating transients upon resumption of feedback loop steady state operation after feedback loop interruption |
| 09/18/2001 | US6291945 Discharge lamp lighting device |
| 09/18/2001 | US6291944 System and method for limiting through-lamp ground fault currents in non-isolated electronic ballasts |
| 09/13/2001 | WO2001067829A1 Driving serially connected high intensity discharge lamps |
| 09/13/2001 | WO2001067828A1 Lamp device and device for driving discharge lamp |
| 09/13/2001 | WO2001067827A1 Improved pulsed operation method for a silent discharge lamp |
| 09/13/2001 | WO2001067826A2 Insulating cover for dual connector |
| 09/13/2001 | WO2001043263A8 Electronic ballasts with current and voltage feedback paths |
| 09/13/2001 | US20010020831 Switching device |
| 09/13/2001 | US20010020830 Circuit arrangement for operating gas discharge lamps |
| 09/13/2001 | US20010020829 Switching device |
| 09/13/2001 | US20010020827 Discharge lamp lighting circuit |
| 09/13/2001 | US20010020826 Starting device for discharge lamp |
| 09/13/2001 | US20010020825 Starting device for discharge lamp |
| 09/13/2001 | US20010020824 Starting device for discharge lamp |
| 09/13/2001 | DE10011484A1 Operating method for discharge lamp with dielectric layer between electrode and discharge medium, involves using mains starter with primary circuit and secondary circuit |
| 09/13/2001 | DE10011306A1 Vorrichtung zur Steuerung von Lichtquellen mit Vorschaltgerät Apparatus for controlling light sources with ballast |
| 09/13/2001 | DE10008232A1 Increasing ultraviolet light radiator efficiency involves operating alternately with greater and lower instantaneous input power compared to effective input power for same switch-on period |
| 09/12/2001 | EP1133215A2 Method and ignition circuit for switching a high pressure lamp on and off |
| 09/12/2001 | EP1131984A1 Neon sign transformer module and receptacle |
| 09/12/2001 | CN1313022A Circuit arrangement for energy-saving operation of fluorescent tube |
| 09/12/2001 | CN1312669A Lighting circuit of discharging lamp |
| 09/12/2001 | CN1312668A Single-switch electronic ballast |
| 09/11/2001 | US6288912 Power supply device for a light box including first and second DC to DC convertors and energy reserve |
| 09/11/2001 | US6288501 Ballast for a discharge lamp |
| 09/11/2001 | US6288500 Circuit arrangement for detecting rectification of discharge lamps |
| 09/10/2001 | CA2339723A1 Device for controlling light sources having a ballast |
| 09/07/2001 | WO2001065894A1 Electronic ballast |
| 09/07/2001 | WO2001065893A2 Electronic ballast |
| 09/06/2001 | US20010019040 Discharge tube for a local etching apparatus and a local etching apparatus using the discharge tube |
| 09/06/2001 | DE10005159A1 Improved silent discharge lamp pulse operation involves varying inductance determining transformer primary current to be much lower for current maximum than in initial ignition phase |
| 09/05/2001 | EP1129604A1 Ballast circuit for high intensity discharge lamps |
| 09/05/2001 | EP1129603A1 A power supply system for a fluorescent lamp |
| 09/05/2001 | EP1040732B1 Method for detecting a lamp change and electronic lamp ballast for operating gas-discharge lamps using such a method for detecting a lamp change |
| 09/05/2001 | EP0763312B1 Circuit arrangement |
| 09/05/2001 | CN2446747Y Flasher and its control circuit |
| 09/05/2001 | CN2446746Y Wholly protecting electronic ballast |
| 09/05/2001 | CN2446745Y 一种电子镇流器 An electronic ballast |