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)
10/2000
10/31/2000US6140772 Method and apparatus for control of fluorescent lamps
10/31/2000US6140771 Method and device for detecting the rectification effect that occurs in a gas discharge lamp
10/31/2000US6140770 Ballast for a gas-discharge lamp, particularly for motor vehicles
10/30/2000CA2306294A1 Method and apparatus for retrofitting gas discharge lamp ballast for use with gas discharge lamp having different power rating
10/26/2000WO2000064222A1 Discharge lamp lighting device and illuminating device
10/26/2000WO2000064221A1 Device for firing discharge lamp
10/26/2000DE19918261A1 Vorschaltgerät für eine Hochdruckgasentladungslampe in einem Kraftfahrzeug Ballast for a high pressure gas discharge lamp in a motor vehicle
10/26/2000DE19916080A1 Vorschaltgerät mit Fehlererkennung Ballast with error detection
10/26/2000DE19916016A1 Light for low temp. has thermal exchange with surroundings limited to form higher than ambient temp. near lamps, which are operated so lamp temp. is at optimum light output temp.
10/25/2000EP1047287A1 Dimmer for fluorescent lamps
10/25/2000EP1047286A1 Ballast for discharge lamp in automobile
10/25/2000EP1047285A2 Fluorescent lamp ballast combined with electronic starter and resonant capacitor for reducing input current
10/25/2000EP1046325A1 Circuit arrangement
10/25/2000EP1046324A1 Circuit arrangement
10/25/2000EP1046323A1 Circuit arrangement
10/25/2000EP1046322A1 Circuit arrangement
10/25/2000CN2403199Y Energy saver for fluorescent lamp
10/24/2000US6137241 Starting switch circuit for a fluorescent lamp
10/24/2000US6137240 Universal ballast control circuit
10/24/2000US6137239 Electronic ballast with selective load control
10/24/2000US6137238 High-efficiency self-regulated electronic ballast with a single characteristic curve for operating high-pressure sodium vapor lamps
10/24/2000US6137237 High frequency inductive lamp and power oscillator
10/24/2000US6137235 Low-resistance bipolar bridge circuit
10/24/2000US6137234 Circuit arrangement
10/24/2000US6137233 Ballast circuit with independent lamp control
10/24/2000US6135625 Structure for attaching lighting circuit for electric discharge lamp for motorcycle
10/24/2000CA2037667C Ignitor for high pressure arc discharge lamps
10/21/2000CA2300351A1 Fluorescent lamp ballast combined with electronic starter and resonant capacitor for reducing input current
10/19/2000WO2000062330A1 Discharge lamp with base
10/19/2000DE19917365A1 Verfahren zum Abgleich mindestens eines Betriebsparameters eines Betriebsgerätes für elektrische Lampen Method of adjusting at least one operating parameter of an operating unit for electric lamps
10/19/2000DE19916877A1 Entladungslampe mit Sockel Discharge lamp with base
10/19/2000DE19915795A1 Vorschaltgerät für eine Hochdruckgasentladungslampe in einem Kraftfahrzeug Ballast for a high pressure gas discharge lamp in a motor vehicle
10/18/2000EP1045623A2 A dimmer and dimming lighting system
10/18/2000EP1045622A2 Arc lamp ballast
10/18/2000EP1045621A1 Supply for discharge lamps
10/18/2000EP1045620A2 System for and method of operating a mercury free discharge lamp
10/18/2000EP1045619A1 Calibration method of operating parameters of a lamp ballast
10/18/2000EP1044588A1 Method and apparatus for dimming a lamp in a backlight of a liquid crystal display
10/18/2000EP1044587A1 Ground fault protection circuit
10/18/2000EP1004067A4 Low-voltage high-efficiency fluorescent signage, particularly exit sign
10/18/2000CN2402096Y Light regulator for fluorescent lamp
10/18/2000CN2402095Y Plug-in type electronic ballast
10/18/2000CN2402045Y UPS unit for fluorescent lamp
10/18/2000CN1270491A Energy-saving power supply for high-power stepless regulatable gas discharge lamp
10/18/2000CN1270490A Method for eliminating counter E. M. F. of electronic ballast and special efficient electronic ballast
10/18/2000CN1270441A Piezo inverter
10/18/2000CN1270439A Piezo transformer inverter
10/18/2000CN1057637C DC fluorescent lamp for lighting in passenger train
10/17/2000US6134133 Piezoelectric transformer inverter
10/17/2000US6134132 Circuit arrangement
10/17/2000US6133697 Dimming apparatus for fluorescent lamps
10/17/2000US6133696 Dimmer for fluorescent lighting
10/17/2000US6133672 Driving method of piezoelectric transformer and driving circuit for the same
10/17/2000CA2122176C Bi-metallic switch element
10/14/2000CA2295412A1 Arc lamp ballast
10/14/2000CA2295383A1 System for and method of operating a mercury free discharge lamp
10/13/2000CA2304301A1 A dimmer and dimming lighting system
10/11/2000EP1043919A2 Ballast for a high pressure discharge lamp in a vehicle
10/11/2000EP1043918A1 Starting device with error detection
10/11/2000EP1043917A2 Luminaire starting aid device
10/11/2000EP1042942A1 An electronic ballast for a gas discharge lamp
10/11/2000CN2401001Y Compensated electronic ballast
10/11/2000CN2401000Y Soft starter able to shutoff
10/11/2000CN1269691A Group controlled light regulating method for electronic ballast fluorescent lamp
10/10/2000US6130833 Method of operating piezoelectric transformer and operating circuit therefor
10/10/2000US6130512 Rf capacitively-coupled electrodeless light source
10/10/2000US6130511 Neon discharge lamp for generating amber light
10/10/2000US6130509 Balanced feedback system for floating cold cathode fluorescent lamps
10/10/2000US6130508 Method and apparatus for operating a discharge lamp to reduce the curvature of its discharge arc
10/05/2000WO2000059273A1 Supply coupling of a fluorescent lamp
10/05/2000WO2000059272A1 Control gear for fluorescent lamp
10/05/2000WO2000059271A1 Control gear for fluorescent lamps
10/05/2000WO2000059270A1 Circuit arrangement
10/05/2000WO2000059269A1 Base of an electric discharge lamp with an ignition device
10/05/2000WO2000059268A1 Lamp ignitor for starting conventional hid lamps and for starting and restarting hid lamps with hot restrike capability
10/05/2000WO2000059100A1 Universal power module
10/05/2000WO2000058997A1 Compact self-ballasted fluorescent lamp
10/05/2000CA2333704A1 Control gear for fluorescent lamp
10/05/2000CA2332537A1 Gas discharge lamp base with a starting device
10/05/2000CA2332464A1 Control gear for fluorescent lamps
10/04/2000EP1041862A1 Apparatus for lighting discharge lamp
10/04/2000EP1040735A1 Electronic ballast
10/04/2000EP1040734A2 Circuit arrangement
10/04/2000EP1040733A1 Electronic lamp ballast
10/04/2000EP1040732A1 Method for detecting a lamp change and electronic lamp ballast for operating gas-discharge lamps using such a method for detecting a lamp change
10/04/2000EP1040731A1 Power device for illuminated light box
10/04/2000EP1040730A1 Preconditioner
10/04/2000EP1040729A2 Circuit arrangement
10/04/2000EP1040399A1 Microprocessor controlled electronic ballast
10/04/2000CN2399901Y Shunting, width limit, harmonic wave eliminating neon light transformer
10/04/2000CN2399900Y Fluorescent lamp electronic ballast
10/04/2000CN2399899Y Filament preheating resistance of gas discharging lamp electronic ballast
10/04/2000CN2399747Y Rear shutter synchronous flashing camera
10/04/2000CN1057151C External type electronic ballast for fluorescent tube lamp
10/03/2000US6127789 Apparatus for controlling the lighting of a discharge lamp by controlling the input power of the lamp
10/03/2000US6127788 High voltage discharge lamp device
10/03/2000US6127787 Sequential, clamped, single-ended ignition of series operation arc lamps
10/03/2000US6127786 Ballast having a lamp end of life circuit
10/03/2000US6127785 Fluorescent lamp power supply and control circuit for wide range operation
10/03/2000US6127782 Externally mountable discharge lamp ignition circuit having visual diagnostic indicator
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