| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 04/26/2001 | WO2001030121A1 Circuit arrangement |
| 04/26/2001 | WO2001030120A1 Dielectric barrier discharge lamp light source |
| 04/26/2001 | DE19948097A1 Fluorescent lamp for automobile interior lighting has gas-filled glass envelope provided with metallised layer acting as heating resistance |
| 04/25/2001 | EP1094690A2 Fluorescent lamp |
| 04/25/2001 | EP1093704A2 Ballast circuit |
| 04/25/2001 | EP1093660A1 Device to optimize the generation of visible light produced by the influence of an electric field (e) on the ultraviolet radiation. the device is applicable to mercury arc vapor lamps and/or fluorescent tubes |
| 04/25/2001 | CN2427946Y Self-ballast and compact type energy-saving lamp |
| 04/25/2001 | CN1065106C Power source device |
| 04/25/2001 | CN1065105C Luminaire |
| 04/24/2001 | US6222327 Lighting device for illumination and lamp provided with the same |
| 04/24/2001 | US6222326 Ballast circuit with independent lamp control |
| 04/24/2001 | US6222325 Fluorescent lamp control circuit |
| 04/24/2001 | US6222322 Ballast with lamp abnormal sensor and method therefor |
| 04/19/2001 | WO2001027522A1 Dc fluorescent lamp without stroboscopic effect |
| 04/19/2001 | DE19936867A1 Procedure to control electronic ballast apparatus for lamps by external control contact, evaluating information supplied via control contact by phase recognition of applied potential undertaken in analogue and digital fashion |
| 04/18/2001 | EP1093324A1 Dielectric barrier discharge lamp light source |
| 04/18/2001 | EP1092336A1 Circuit arrangement |
| 04/18/2001 | CN2427038Y High-voltage metal gas discharge lamp electronic ballast |
| 04/18/2001 | CN1292207A Electronic lamp ballast |
| 04/18/2001 | CN1291857A Low cost precision electronic electronic actuator |
| 04/17/2001 | US6218789 Metal halide lamp having specified relation between electrode distance and operation voltage, and operating at acoustic standing wave frequency |
| 04/17/2001 | US6218788 Floating IC driven dimming ballast |
| 04/17/2001 | US6218787 Remote dimming control system for a fluorescent ballast utilizing existing building wiring |
| 04/17/2001 | US6218782 Fluorescent lighting assembly with wireless ballast |
| 04/17/2001 | CA2032057C Circuit and method for improved dimming of gas discharge lamps |
| 04/12/2001 | WO2001026431A1 A power oscillator for driving a discharge lamp |
| 04/12/2001 | WO2001026430A1 A self-oscillating power supply circuit |
| 04/12/2001 | WO2001026429A1 A power oscillator for driving a discharge lamp |
| 04/12/2001 | WO2001026428A1 A power supply for driving a discharge lamp |
| 04/12/2001 | WO2001026427A1 A power oscillator for driving a discharge lamp |
| 04/12/2001 | WO2001026426A1 Electronic ballast with boost converter |
| 04/12/2001 | DE19947241A1 Glimmzünder Glow igniter |
| 04/12/2001 | DE19946253A1 Control unit for electric arc lamp with supply part with constant regulated output at its output connections with series inductance in series with lamp and pre-connected HF pulsed switch |
| 04/12/2001 | CA2386127A1 Electronic ballast with boost converter |
| 04/11/2001 | CN1291421A Light adjustable electronic ballast |
| 04/11/2001 | CN1291420A Ballast circuit |
| 04/11/2001 | CN1291419A Ballast for lamp |
| 04/11/2001 | CN1291418A Circuit arrangement |
| 04/11/2001 | CN1291417A Circuit arrangement |
| 04/11/2001 | CN1291416A Electronic ballast |
| 04/11/2001 | CN1291415A Light adjustable ballast having sigle stage feeback convertor |
| 04/11/2001 | CN1290952A Starter for fluorescent lamp |
| 04/11/2001 | CN1290951A Large power cold cathode gas discharge electrode |
| 04/10/2001 | US6215680 Circuit for obtaining a wide dimming ratio from a royer inverter |
| 04/10/2001 | US6215256 High-efficient electronic stabilizer with single stage conversion |
| 04/10/2001 | US6215255 Electric ballast system |
| 04/10/2001 | US6215254 High-voltage discharge lamp, high-voltage discharge lamp device, and lighting device |
| 04/10/2001 | US6215253 Inductorless ballast |
| 04/10/2001 | US6215252 Method and apparatus for lamp control |
| 04/10/2001 | US6215249 Fluorescent lamp assembly |
| 04/05/2001 | WO2001024590A1 Circuit arrangement to operate high voltage discharge lamps |
| 04/05/2001 | WO2001024589A1 Circuit device to adapt high power gas discharge lamps |
| 04/05/2001 | WO2001024588A1 Discharge lamp lighting device |
| 04/05/2001 | WO2001024587A1 Modular master-slave power supply controller |
| 04/05/2001 | WO2001023803A1 Illumination device |
| 04/05/2001 | DE19944575A1 Illumination arrangement has at least one electrodeless discharge lamp |
| 04/05/2001 | DE19940380A1 Circuit for operating low pressure discharge lamp for converting from choke-starter mode to electronic operating system has high frequency line connected to lamp pin via contact in PCB hole |
| 04/05/2001 | DE10042615A1 Beleuchtungssystem für ein Fahrzeug A lighting system for a vehicle |
| 04/04/2001 | EP1089601A2 Magnetically deflected arc lamp |
| 04/04/2001 | EP1089600A1 Discharge lamp lighting device and illuminating device |
| 04/04/2001 | EP1089599A2 Glow discharge starter |
| 04/04/2001 | EP1089598A2 Low cost, precision electronic starter |
| 04/04/2001 | EP1088335A1 Discharge lamp with base |
| 04/04/2001 | CN2426260Y Resistance type light-adjusting ballast for fluorescence lamp |
| 04/04/2001 | CN1290471A Circuit arrangement |
| 04/04/2001 | CN1290470A Circuit arrangement |
| 04/04/2001 | CN1290120A Reactive power factor correcting network |
| 04/03/2001 | US6211625 Electronic ballast with over-voltage protection |
| 04/03/2001 | US6211624 Method and device for the modulation of the intensity of fluorescent lamps |
| 04/03/2001 | US6211623 Fully integrated ballast IC |
| 04/03/2001 | US6211620 Ballast for fluorescent lamp |
| 04/03/2001 | US6211619 Electronic ballast cathode heating circuit |
| 04/03/2001 | CA2111620C Water treatment system bulb status monitor circuit |
| 03/30/2001 | CA2317385A1 Magnetically deflected arc lamp |
| 03/28/2001 | EP1087645A2 Determining remaining operating life of fluorescent lamp |
| 03/28/2001 | EP1087644A1 Improvements in driving of discharge lamps in particular for vehicle headlamps |
| 03/28/2001 | EP1086611A1 Circuit arrangement for operating a discharge lamp |
| 03/28/2001 | EP1086610A1 Glow discharge starter |
| 03/28/2001 | EP1086609A1 Starter for a gas discharge lamp, especially a high pressure gas discharge lamp for automobile headlights |
| 03/28/2001 | CN2425474Y Electronic ballast for long-distance controlling group fluorescent lamps |
| 03/28/2001 | CN2425473Y Electronic ballast for long-distance controlling group fluorescent lamps |
| 03/28/2001 | CN2425416Y Double-capacitor combined ballast for transformer |
| 03/28/2001 | CN1289528A Circuit device for making discharge lamp work |
| 03/28/2001 | CN1289527A Circuit arrangement |
| 03/28/2001 | CN1289526A Glow discharge starter |
| 03/28/2001 | CN1289020A Cold-cathode neon light |
| 03/28/2001 | CN1063908C Synchronous flashing instrument with high frequency series of short pulses |
| 03/27/2001 | US6208122 High frequency pulse width modulation of AC current for control of lighting load power |
| 03/27/2001 | US6208090 Reduced voltage and time delay to eliminate filament hot shock |
| 03/27/2001 | US6208089 Discharge-lamp lighting circuit |
| 03/27/2001 | US6208088 Method and ballast for starting a discharge lamp |
| 03/27/2001 | US6208086 Halogen power converter with complementary switches |
| 03/27/2001 | US6208085 Circuit for power-factor correction |
| 03/27/2001 | US6208064 Piezoelectric transformer drive circuit and drive method |
| 03/22/2001 | WO2001020952A1 Discharge lamp operating device |
| 03/22/2001 | DE10044428A1 Discharge lamp unit for vehicle has discharge lamp for main beam light and discharge lamp for dipped light and lighting control circuit |
| 03/22/2001 | DE10044194A1 Discharge lamp system for vehicle, which contains at least two discharge lamps and lamp switching circuit for controlling discharge lamps |
| 03/21/2001 | EP1084596A1 Supply coupling of a fluorescent lamp |
| 03/21/2001 | EP1084595A1 Control gear for fluorescent lamps |
| 03/21/2001 | EP1084508A2 High frequency inductive lamp and power oscillator |