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)
04/2003
04/08/2003US6545433 Circuit arrangement equipped with a timer compensating lamp degradation through its service life
04/08/2003US6545432 Ballast with fast-responding lamp-out detection circuit
04/08/2003US6545431 Dimmable electronic ballast
04/08/2003US6545430 High-pressure discharge lamp, and manufacturing method, lighting method, and lighting device for the same
04/08/2003US6545429 Lighting assembly having regulating transformer distally located from ballast
04/08/2003US6545428 Light fixture with submersible enclosure for an electric lamp
04/08/2003US6545426 Control circuit using piezoelectric ceramic transformer for driving back-light devices
04/08/2003US6545417 Ballast socket for compact fluorescent lamp
04/08/2003US6545416 Portable HMI fixture with integral ballast
04/03/2003WO2003028411A1 Electronic ballast with lamp run-up current regulation
04/03/2003WO2003028410A1 Electronic ballast system with dual power and dimming capability
04/03/2003US20030063050 Gas discharge tube and drive method therefor
04/03/2003US20030062855 Discharge lamp lighting apparatus and discharge lamp apparatus
04/03/2003US20030062854 Dimming control system for electronic ballasts
04/03/2003US20030062853 Remote discharge lamp ignition circuitry
04/03/2003US20030062852 Apparatus and method for intercepting leakage of microwave
04/03/2003US20030062850 Ballast with protection circuit for preventing inverter startup during an output ground-fault condition
04/03/2003US20030062849 Method and circuit for controlling current in a high pressure discharge lamp
04/03/2003US20030062848 Method and circuit for regulating power in a high pressure discharge lamp
04/03/2003US20030062847 Fluorescent luminaire capable of starting with broken filament
04/03/2003US20030062846 Electronic ballast with lamp run-up current regulation
04/03/2003US20030062841 Method of operating a dimmable fluorescent light
04/03/2003US20030062832 High intensity discharge lamp and high intensity discharge lamp system using the same
04/03/2003DE20301124U1 Device for damping electromagnetic noise signals from lamps or electrical equipment in electronic system, has earth line wound around iron core
04/03/2003CA2361913A1 Remote discharge lamp ignition circuitry
04/02/2003EP1298964A2 Dimming control system for electronic ballasts
04/02/2003EP1298963A1 Transmit and receive LED
04/02/2003EP1298707A2 High intensity discharge lamp with only one electrode
04/02/2003EP1297728A1 Circuit device
04/02/2003EP1297727A1 Circuit device
04/02/2003CN2543322Y Energy-saving device for pollutionless electronic ballast
04/02/2003CN2543321Y Low-cost electronic ballast for high-intensity gas discharge lamp
04/02/2003CN2543320Y Soft starting ballast
04/02/2003CN2542257Y Frequency generator for multispectral illuminating light
04/02/2003CN1407843A Electronic circuit and image projector for operating high-strength discharge lamp
04/02/2003CN1407842A Light regulator of small fluorescent lamp
04/02/2003CN1407841A Multifunctional environment protection fluorescent light and ballast against power supply interruption
04/02/2003CN1407840A Phase controlled regulative electronic ballast of fluorescent light with extremely wide range
04/02/2003CN1407599A 无电极灯系统 The electrodeless lamp system
04/01/2003US6541926 Electronically controlled, power saving, power supply system for fluorescent tubes
04/01/2003US6541925 Resonant converter circuit with suppression of transients during changes in operating condition
04/01/2003US6541924 Methods and systems for providing emission of incoherent radiation and uses therefor
04/01/2003US6541923 Electronic ballasts
04/01/2003US6541915 High pressure arc lamp assisted start up device and method
03/2003
03/28/2003CA2399778A1 Method and circuit for regulating power in a high pressure discharge lamp
03/28/2003CA2399747A1 Ballast with protection circuit for preventing inverter startup during an output ground-fault condition
03/27/2003WO2003026361A1 Dielectric barrier discharger
03/27/2003WO2002104083A3 Apparatus and method for driving a high intensity discharge lamp
03/27/2003US20030058670 Method and apparatus for controlling minimum brightness of a fluorescent lamp
03/27/2003US20030057882 High intensity discharge lamp with only electrode
03/27/2003US20030057881 Adaptive control for half-bridge universal lamp drivers
03/27/2003US20030057878 Ultra-compact igniter circuit for arc discharge lamp
03/27/2003US20030057877 Electrodeless discharge lamp
03/27/2003US20030057876 Mercury-free metal halide lamp, with contents and electric power control depending on resistance properties
03/27/2003US20030057875 Flashlamp drive circuit
03/27/2003US20030057873 Inverter circuit for a discharge tube
03/27/2003US20030057872 Method and circuit arrangement for producing an ignition voltage for fluorescent lamps
03/27/2003US20030057871 Self-ballasted fluorescent lamp
03/27/2003US20030057870 Discharge lamp driver circuit designed to minimize radiation of noise
03/27/2003US20030057869 Discharge lamp lighting circuit
03/27/2003US20030057868 Method and ballast for feeding a uv light low pressure radiator
03/27/2003US20030057867 Ultra-compact arc discharge lamp system with an additional electrode
03/27/2003US20030057866 Electronic ballast and lighting fixture
03/27/2003US20030057849 Electric power supply safety interlock system
03/27/2003US20030057842 Electrodeless discharge lamp using microwave energy
03/27/2003US20030057841 Bulb with reflector and electrodeless discharge lamp using same
03/27/2003US20030057840 Electrodeless lighting system
03/27/2003DE20218162U1 Piezoelectric transformer driver unit e.g. for fluorescent lamps, has pulse width modulation control providing signals of equal phase and frequency for synchronous operation of drivers, transformers, piezoelectric elements and loads
03/26/2003EP1296543A2 Circuit arrangement
03/26/2003EP1296542A1 Inverter circuit for a discharge tube
03/26/2003EP1296541A1 Circuit device and method to produce UV rays
03/26/2003EP1296354A2 Mercury-free metal halide discharge lamp, lighting device for such a lamp, and illuminating apparatus using such a lamp
03/26/2003EP1295193A1 Ballast control ic with minimal internal and external components
03/26/2003CN2542019Y Brightness regulatable circuit for high voltage discharge lamp tube
03/26/2003CN1406103A Power factor correcting unit with electronic ballast function
03/26/2003CN1104027C Low-voltage discharge lamp assembly and its fixing method
03/25/2003US6538448 Determining remaining operating life of fluorescent lamp
03/25/2003US6538395 Apparatus for dimming a fluorescent lamp with a magnetic ballast
03/25/2003US6538393 Circuit arrangement
03/20/2003WO2003024162A1 Method and device for operating a fluorescent tube in an energy saving manner
03/20/2003WO2003024161A1 Reducing color segregation in hid lamps
03/20/2003WO2003024160A1 Ultra-compact igniter circuit for arc discharge lamp
03/20/2003US20030052624 Discharge lamp device
03/20/2003US20030052622 Light source device
03/20/2003US20030052621 Ballast with protection circuit for quickly responding to electrical disturbances
03/20/2003US20030052620 Device and method for preheating the coil electrodes of a fluorescent lamp
03/20/2003DE20218163U1 Piezoelectric transformer-driver unit e.g. for computer LCD light-sources, uses driver unit to synchronously drive transformer units, piezoelectric units and loads
03/20/2003CA2459226A1 Method and device for operating a fluorescent tube in an energy saving manner
03/19/2003EP1294216A2 Apparatus and method for preheating the electrode of a fluorescent lamp
03/19/2003EP1294011A2 High intensity discharge lamp and lighting system using the same
03/19/2003EP1293111A1 Starting aid for fluorescent lamps
03/19/2003EP1293110A1 Electronic ballast for a discharge lamp
03/19/2003EP1293109A1 Electronic ballast circuit for operating a high intensity discharge lamp
03/19/2003EP0808552B1 Ballast system
03/19/2003CN1404706A 电路设备 Circuit Equipment
03/19/2003CN1403870A Photographic roll film unit mounted with lens and electronic flasher used for the same unit
03/19/2003CN1103536C Feedback control system of electronic ballast for detecting switch-in lamp tube
03/18/2003US6535692 Camera with built-in electronic flash and electronic flash device
03/18/2003US6535401 Circuit arrangement
03/18/2003US6534988 System for testing the presence of an ignitor pulse within a high intensity discharge luminaire
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