Patents
Sitemap › H05 - Electric techniques not otherwise provided for › H05B - Electric heating; Electric lighting not otherwise provided for › H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps
Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100)
10/2003
10/28/2003US6639368 Programmable PWM module for controlling a ballast
10/28/2003US6639367 Control circuit employing preconditioned feedback amplifier for initializing VCO operating frequency
10/28/2003US6639366 Power supply circuit for a cold-cathode fluorescent lamp
10/28/2003US6639365 Ultra-compact arc discharge lamp system with an additional electrode
10/23/2003WO2003088722A1 Discharge lamp lighting device
10/23/2003WO2003043054A3 High-pressure discharge lamp
10/23/2003US20030197478 Discharge lamp lighting device
10/23/2003US20030197460 Low voltage display device; zinc sulfide with manganese, copper promoters
10/23/2003US20030197113 Illumination management system
10/23/2003DE20312764U1 Circuit for detecting spark overvoltage especially for cold cathode and neon lamps has evaluation circuit to measure voltage across a resistance
10/22/2003EP1355517A1 Switched converter with acoustic switching frequency
10/22/2003EP1355516A1 Inverter operation of incandescent lamps in vehicles
10/22/2003EP1354500A1 Device and method for the multi-phase operation of a gas discharge or metal vapour lamp
10/22/2003CN2582328Y Driving control device for cold cathode fluorescent lamp tube
10/22/2003CN2582327Y Driving protection device for cold cathode fluorescent lamp tube
10/22/2003CN2582326Y Multiple choke oil, common-channel output type electronic ballast
10/22/2003CN2582325Y Electronic starter
10/22/2003CN2582324Y Electronic ballast for high pressure sodium (mercury) lamp
10/22/2003CN1450845A 灯控制系统 Light Control System
10/22/2003CN1450844A Environment protection type electronic ballast energy-saving device
10/22/2003CN1450843A High-frequency/high-power factor inverter circuit combined with cathode heating
10/22/2003CN1450696A Arrester
10/22/2003CN1450591A Electrodeless lamp system
10/22/2003CN1125581C Reactive power factor correcting network
10/21/2003US6636700 Flash device, lens-fitted photo film unit, camera, light measuring device, and method of producing lens-fitted photo film unit
10/21/2003US6636190 Liquid crystal display having an improved lighting device
10/21/2003US6636021 Circuits and techniques for capacitor charging circuits
10/21/2003US6635999 Method and apparatus for controlling the temperature of a multiparameter light and/or a component thereof using orientation and/or parameter information
10/16/2003US20030193302 Lighting system
10/16/2003US20030193299 Electrodeless lamp system
10/16/2003US20030193293 Circuit arrangement for operation of incandescent lamps in motor vehicles
10/16/2003CA2425475A1 Circuit arrangement for operation of incandescent lamps in motor vehicles
10/15/2003EP1353422A1 Overvoltage arrester
10/15/2003EP1353360A2 Electrodeless lamp system
10/15/2003EP1353317A2 Method and apparatus for dimming a lamp in a backlight of a liquid crystal display
10/15/2003EP1352547A1 Gas discharge lamp base comprising an ignition device
10/15/2003EP1352546A1 Electronic ballast with feed-forward control
10/15/2003EP1352413A1 Circuit assembly for inclusion within fluorescent lamp
10/15/2003EP1161713B1 Sequential, clamped, single-ended ignition of series operation arc lamps
10/15/2003EP1057376B1 Circuit arrangement
10/15/2003EP1057375B1 Circuit arrangement
10/15/2003EP1040735B1 Electronic ballast
10/15/2003EP0910933B1 Ballast
10/15/2003CN2580724Y Light-adjusting type DC electronic ballast
10/15/2003CN2580723Y Ballast for energy-savnig lamp
10/15/2003CN1449642A Voltage feed push-pull resonant inverter for lcd backlighting
10/15/2003CN1449230A Light-emitting method and apparatus for high-pressure discharge lamp and high-pressure discharge lamp apparatus
10/15/2003CN1448981A High power lighting system and fluorescent lamp
10/15/2003CN1124778C Circuit arrangement
10/15/2003CN1124777C 一种荧光灯启动器 A fluorescent lamp starter
10/15/2003CN1124776C Discharge lamp operating apparatus and method
10/15/2003CA2425333A1 Lighting system
10/14/2003US6633728 Flash device, lens-fitted photo film unit, camera, and producing method for the same
10/14/2003US6633139 Converter for converting an AC power main voltage to a voltage suitable for driving a lamp
10/14/2003US6633138 Method and apparatus for controlling a discharge lamp in a backlighted display
10/14/2003US6633093 High voltage pulse generator using a non-linear capacitor
10/09/2003WO2003084293A1 Electronic power circuit for gas discharge lamps
10/09/2003US20030189411 Lamp ballast system having improved power factor and end-of-lamp-life protection circuit
10/08/2003CN2579135Y High-power electronic ballast
10/08/2003CN2579134Y Colour variable digital light
10/08/2003CN2578971Y Cold cathode fluorescent tube
10/08/2003CN1447977A Self power feeding switch element
10/08/2003CN1447635A Method of luorescent lamp ballasting
10/08/2003CN1123909C Plasma lamp structure of microwave illuminating appts.
10/07/2003US6631063 System for monitoring electrical circuit operation
10/07/2003US6630800 Remote-control device of lamp series control box
10/07/2003US6630798 Electronic flash device of automatic light adjusting type
10/07/2003US6630797 High efficiency driver apparatus for driving a cold cathode fluorescent lamp
10/02/2003WO2003081963A1 Cold-cathode tube operating apparatus
10/02/2003WO2003081962A1 Dimmer circuit with improved inductive load imbalance protection
10/02/2003WO2003081961A1 Improved dimmer circuit arrangement
10/02/2003WO2003081745A1 Lighting system
10/02/2003WO2003081364A1 Dimmer circuit with improved ripple control
10/02/2003WO2003032362A3 Dielectric barrier discharge lamp and method and circuit for igniting and operating said lamp
10/02/2003US20030184242 Switching power supply for discharge lamp and method for powering a lamp
10/02/2003US20030184240 Circuit for lighting hid lamp
10/02/2003US20030184239 High lamp-power lighting system and fluorescent lamp
10/02/2003CA2480413A1 Dimmer circuit with improved inductive load imbalance protection
10/02/2003CA2480407A1 Improved dimmer circuit arrangement
10/02/2003CA2480391A1 Dimmer circuit with improved ripple control
10/02/2003CA2480166A1 Lighting system
10/01/2003EP1349438A1 Arc-discharge detection in a high-pressure discharge lamp
10/01/2003EP1321013A4 Method and apparatus for arc detection and protection for electronic ballasts
10/01/2003EP1118252B1 Lighting control system including a wireless remote sensor
10/01/2003EP0951730B1 Illumination unit and liquid crystal display device
10/01/2003CN2577529Y Monopole filament-free energy-saving fluorescent lamp
10/01/2003CN1446037A Starter for fluorescent
10/01/2003CN1123199C Color image reader
10/01/2003CN1123058C Compact electrodeless fluorescent A-line lamp
10/01/2003CN1123055C Integrated HID reflector lamp
09/2003
09/30/2003US6628094 Method and apparatus for canceling ripple current in a lamp
09/30/2003US6628093 Power inverter for driving alternating current loads
09/30/2003US6628092 Ballast and method of feeding a fluorescent lamp
09/30/2003US6628091 Electronic switch for a bi-level fluorescent lamp fixture
09/30/2003US6628090 Resonant driving system for a fluorescent lamp
09/30/2003US6628089 Extraction of accessory power from a signal supplied to a luminaire from a phase angle dimmer
09/25/2003WO2003079739A1 Spotlight system having a regulating device
09/25/2003WO2003079738A1 Energy-saving dimming apparatus
09/25/2003WO2003079733A1 Driver circuit for an electroluminescent lamp
09/25/2003WO2003079130A2 Lamp power measurement circuit
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