| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 06/06/2001 | CN1066854C Run method of discharge lamp |
| 06/05/2001 | US6243017 Method and arrangement for determining remaining operating life of fluorescent lamp |
| 06/05/2001 | US6242869 Fluorescent lamp stabilizer harmonics reduction method |
| 06/05/2001 | US6242867 Circuit for synchronizing the ignition of electronic ballast discharge lamps |
| 05/31/2001 | WO2001039556A1 Circuit device for operating a discharge lamp by means of a high-frequency current |
| 05/31/2001 | WO2001039555A1 Self-tuning electrodeless lamps |
| 05/31/2001 | WO2001039238A1 Boot for a rare gas illumination system |
| 05/31/2001 | DE19956391A1 Starting and operating fluorescent lamp involves measuring cathode temperature when cathode current is flowing and igniting discharge when certain temperature is reached |
| 05/31/2001 | DE19951310A1 Piezoceramic transformer e.g. for circuit for driving fluorescent lamps, has rectangular piezoceramic plate operating in lambda mode, central driver section, two generator sections at ends, and internal and external electrodes |
| 05/30/2001 | EP1104008A1 Fluorescent lamp |
| 05/30/2001 | EP1103166A1 Electronic ballast for at least one low-pressure discharge lamp |
| 05/30/2001 | EP1103165A1 Electronic ballast for at least one low-pressure discharge lamp |
| 05/30/2001 | CN2432654Y Loudspeaker box for radio recorder |
| 05/30/2001 | CN1297673A Supply coupling of fluorescent lamp |
| 05/30/2001 | CN1297672A Control gear for fluorescent lamps |
| 05/29/2001 | US6239559 Light source using dielectric barrier discharge lamp |
| 05/29/2001 | US6239558 System for driving a cold-cathode fluorescent lamp connected to a piezoelectric transformer |
| 05/29/2001 | US6239557 Transformer winding technique with reduced parasitic capacitance effects |
| 05/29/2001 | US6239556 Long life discharge lamp operating circuit with reduced lamp flicker |
| 05/29/2001 | US6239552 Discharge lamp lighting apparatus driven by internal combustion engine |
| 05/25/2001 | WO2001037617A1 Ballast circuit |
| 05/25/2001 | WO2001037615A1 System and method for controlling rare gas illumination |
| 05/23/2001 | EP1102115A2 Flash device with automatic light emission regulation |
| 05/23/2001 | EP1101392A1 Fluorescent lamp dimmer system with lamp seasoning |
| 05/23/2001 | EP1101156A1 Electronic ballast with frequency management |
| 05/23/2001 | CN2431701Y Flash type lanterns controller |
| 05/23/2001 | CN2431700Y Energy-saving composite colour fluorescent lamp without ballast |
| 05/23/2001 | CN1296727A Circuit arrangement |
| 05/23/2001 | CN1296726A Circuit arrangement |
| 05/23/2001 | CN1066308C 无电极放电灯 The electrodeless discharge lamp |
| 05/22/2001 | US6236169 Supply circuit for a fluorescent tube installation |
| 05/22/2001 | US6236168 Ballast instant start circuit |
| 05/22/2001 | US6236162 Boot for a rare gas illumination system |
| 05/17/2001 | WO2000078681A3 Point-of-use water treatment system |
| 05/17/2001 | DE19954489A1 Schaltung zum Betreiben einer Wechselstrom-Hochdruckgasentladungslampe für ein Kraftfahrzeug Circuit for operating an alternating current high pressure gas discharge lamp for a motor vehicle |
| 05/17/2001 | DE10030174A1 Entladungslampen-Versorgungsschaltung Discharge lamp supply circuit |
| 05/16/2001 | EP1100293A2 Single switch electronic ballast |
| 05/16/2001 | EP1100292A1 Control circuit for high-pressure gas discharge lamp in a vehicule |
| 05/16/2001 | EP1099359A1 Control gear for fluorescent lamp |
| 05/16/2001 | EP1099292A1 Emergency light element for actuating fluorescent lamps in case of mains breakdown |
| 05/16/2001 | CN2430828Y Starter for daylight lamp |
| 05/16/2001 | CN2430827Y Electronic ballast |
| 05/16/2001 | CN1295780A 镇流器反馈方案 Ballast feedback scheme |
| 05/16/2001 | CN1066008C Electronic ballast for hot cathode discharge lamps |
| 05/16/2001 | CN1066007C Discharge lamp ballast |
| 05/16/2001 | CN1066006C Device for operating high pressure gas discharge lamp |
| 05/16/2001 | CN1066005C Circuit arrangement |
| 05/15/2001 | US6232728 Discharge lamp apparatus |
| 05/15/2001 | US6232727 Controlling gas discharge lamp intensity with power regulation and end of life protection |
| 05/15/2001 | US6232726 Ballast scheme for operating multiple lamps |
| 05/15/2001 | US6232725 Circuit arrangement for operating a high-pressure discharge lamp |
| 05/10/2001 | WO2001033918A1 Circuit device |
| 05/10/2001 | WO2001033917A1 Electronic ballast circuit |
| 05/10/2001 | WO2001033916A1 Discharge lamp controlling device and discharge lamp controlling method |
| 05/10/2001 | WO2001033915A1 A high power factor electronic ballast with simplified circuit topology |
| 05/10/2001 | WO2001033914A1 Light modulating electronic ballast |
| 05/10/2001 | DE19952827A1 Lighting unit comprises a bulb seating element which consists of a heat resistant elastomer material, and serves for connecting the high-voltage switching circuit to the bulb |
| 05/10/2001 | DE10054442A1 Scanner has cold-cathode tube light source controlled based on detected temperature |
| 05/09/2001 | EP1098553A2 Automatic lighting intensity regulating device |
| 05/09/2001 | EP1098552A2 A fluorescent lamp operating apparatus |
| 05/09/2001 | EP1097613A1 Electronic ballast for high intensity discharge lamp |
| 05/09/2001 | EP1097612A1 Circuit arrangement |
| 05/09/2001 | EP1097611A1 Circuit arrangement |
| 05/09/2001 | EP1060495A4 Microwave assisted flashlamps |
| 05/09/2001 | CN2429988Y Electronic ballast for fluorescent tube |
| 05/08/2001 | US6229720 Piezoelectric transformer inverter |
| 05/08/2001 | US6229718 Parallel-resonant bridge inverter |
| 05/08/2001 | US6229272 High speed photography light source |
| 05/08/2001 | US6229271 Low distortion line dimmer and dimming ballast |
| 05/08/2001 | US6229270 Variable high frequency lamp controllers and systems |
| 05/08/2001 | US6229269 System for and method of operating a discharge lamp |
| 05/03/2001 | WO2001031981A1 Fluorescent lamp electronic ballast suitable for light-regulating |
| 05/03/2001 | WO2001031980A1 Electronic ballast and method of manufacturing same |
| 05/03/2001 | DE10030176A1 Entladungslampen-Lichtstromkreis A discharge lamp lighting circuit |
| 05/02/2001 | EP1096836A1 Device for firing discharge lamp |
| 05/02/2001 | EP1095544A1 Bi-level output electronic high intensity discharge (hid) ballast system |
| 05/02/2001 | EP1095543A1 Ballast for at least one gas discharge lamp and method for operating such a ballast |
| 05/02/2001 | EP1095542A1 Circuit arrangement |
| 05/02/2001 | EP1095541A1 Circuit arrangement for energy-saving operation of a fluorescent tube |
| 05/02/2001 | EP1095540A1 Ignitor for high intensity discharge lamps |
| 05/02/2001 | EP1095437A1 Overvoltage protection circuit |
| 05/02/2001 | EP1095368A1 Method for operating a liquid crystal display device and liquid crystal display device with temperature compensation |
| 05/02/2001 | EP0965251B1 Method and device for controlling the operation of gas discharge lamps |
| 05/02/2001 | EP0965249B1 DEVICE FOR DETECTING THE RECTIFICATION EFFECT OCCURRiNG IN A GAS DISCHARGE LAMP |
| 05/02/2001 | CN2428941Y Separate-excited electronic ballast |
| 05/02/2001 | CN2428940Y Capacitor inductor type ballast |
| 05/02/2001 | CN2428849Y Resonant-started energy-saving reactive ballast |
| 05/02/2001 | CN1293886A Illumination lamp having brightness and color control |
| 05/02/2001 | CN1293885A Electronic lamp ballast with power fractor correction |
| 05/02/2001 | CN1293884A Electronic ballast with piezoelectric cooling fan |
| 05/02/2001 | CN1293531A Electrodless fluorescent lamp light regulating system |
| 05/01/2001 | US6226196 Piezoelectric transformer inverter |
| 05/01/2001 | US6225760 Fluorescent lamp dimmer system |
| 05/01/2001 | US6225758 Method for producing impulse voltage sequences to operate discharge lamps and circuit pertaining thereto |
| 05/01/2001 | US6225757 Combination MH/HPS ballast |
| 05/01/2001 | US6225756 Power oscillator |
| 05/01/2001 | US6225755 High power factor electronic ballast with simplified circuit topology |
| 05/01/2001 | US6225754 Operating method and operating apparatus for a high pressure discharge lamp |
| 05/01/2001 | US6225753 Electronic ballast that is controlled by the operation of a shared switch |
| 05/01/2001 | US6225751 Fluorescent lamp drive circuit of an image formation apparatus |