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)
05/2003
05/28/2003CN1420388A Camera with stroboscope
05/28/2003CN1110230C Circuit arrangement
05/28/2003CN1110229C Circuit arrangement
05/28/2003CN1110228C Circuit arrangement
05/28/2003CN1110227C Lighting device for showcase
05/28/2003CN1110058C 冷阴极气体放电电极 Cold cathode gas discharge electrode
05/28/2003CN1110057C Luminescent material discharge lamp with overcurrent safety device
05/27/2003US6571062 Electric flash device predicting quantity of overrun light according to target quantity of emission
05/27/2003US6571061 Uniform flash-emission controller
05/27/2003US6570347 Gas-discharge lamp having brightness control
05/27/2003US6570346 Circuit for flashing fluorescent lamps
05/27/2003US6570344 Lamp grounding and leakage current detection system
05/27/2003US6570343 Device for turning on light and illumination apparatus
05/27/2003US6570342 Fluorescent lamp and power converter
05/27/2003US6570341 Electromagnetic ballast for serially connected gaseous discharge lamps
05/27/2003US6570334 Gas-discharge lamp including a fault protection circuit
05/27/2003US6569319 UV light intensity detector in a water treatment system
05/27/2003US6568774 Pulsed operation method for a silent discharge lamp
05/22/2003WO2003043387A1 Circuit arrangement
05/22/2003WO2003043386A1 Lamp ignition
05/22/2003WO2003043054A2 High-pressure discharge lamp
05/22/2003WO2001045474A9 Device for illuminating a liquid crystal screen
05/22/2003US20030095799 Camera including stroboscopic unit
05/22/2003US20030094908 Multiple ballasts operable from a single DC bus
05/22/2003US20030094907 Method of delaying and sequencing the starting of inverters that ballast lamps
05/22/2003US20030094906 Capacitively coupled fluorescent lamp package
05/22/2003US20030094904 Air-cooled lamp, and article treatment system and method utilizing an air-cooled lamp
05/21/2003EP1312246A1 Switching device
05/21/2003EP1312099A1 Self-powered switching device
05/21/2003EP1228672B1 A power oscillator for driving a discharge lamp
05/21/2003CN2552286Y Apparatus for preventing gas discharge lamp from sound resonance and protecting bridge inverter
05/21/2003CN2552285Y Constant light strobeless lamp circuit
05/21/2003CN2552284Y Electricity-saving controller for road lamp
05/21/2003CN1419801A Ballast and method of feeding a fluorescent lamp
05/21/2003CN1419800A Ballast and method of feeding a fluorescent lamp
05/21/2003CN1419400A Electronic ballast and luminous device
05/21/2003CN1419399A Environment protection energy-saving electrode-free glass tube neon lamp
05/21/2003CN1109483C Device and method for light-adjusting for electronic type stabilizer
05/20/2003US6566822 Electronic circuits for detecting filament breakage in gas discharge lamps
05/20/2003US6566821 Drive device and drive method for a cold cathode fluorescent lamp
05/20/2003US6566820 Piezoelectric transformer with multiple outputs
05/20/2003US6566818 High-efficiency and light-adjustable lighting means of two-electrode lamp
05/20/2003US6566817 High intensity discharge lamp with only one electrode
05/15/2003WO2003041457A1 Ballast circuit arrangement for operating a discharge lamp with end of lamp life detection
05/15/2003WO2003041456A1 Electronic ballast for high-intensity discharge lamps
05/15/2003WO2003041455A2 Method and apparatus for lighting a discharge lamp
05/15/2003US20030090913 Power supply and inverter used therefor
05/15/2003US20030090903 Lighting fixture and system
05/15/2003US20030090633 Image display apparatus
05/15/2003US20030090240 Circuits and techniques for capacitor charging circuits
05/15/2003US20030090219 Energy savings device and method for a resistive and/or an inductive load
05/15/2003US20030090218 Cold cathode lamp and lamp control circuit
05/15/2003US20030090217 Portable electronic ballast
05/15/2003US20030090216 Lighting ballast with reverse current flow protection
05/15/2003US20030090215 Lamp ignition
05/15/2003CA2465829A1 Electronic ballast for high-intensity discharge lamps
05/14/2003EP1311143A1 Device for lighting discharge lamp
05/14/2003EP1310141A2 Multiple lamp lcd backlight driver with coupled magnetic components
05/14/2003EP0985330A4 Ferroresonant transformer ballast for regulating the current of gas discharge lamps
05/14/2003CN1418046A Electronic ballast for high-strength gas discharge lamp
05/14/2003CN1108732C Circuit arrangement
05/13/2003US6564015 Electronic flash device
05/13/2003US6563275 Discharge lamp lighting circuit
05/13/2003US6563268 High-intensity discharge lamp
05/08/2003WO2003039211A1 Circuit arrangement
05/08/2003WO2003039210A1 Flashing discharge tube-use power supply and control method therefor
05/08/2003WO2003039209A1 Flashing discharge tube-use power supply circuit
05/08/2003WO2003039208A1 Discharge lamp operating apparatus
05/08/2003WO2003039207A1 Discharging lamp apparatus
05/08/2003WO2003039206A1 Ballasting circuit
05/08/2003WO2003039205A1 Ballasting circuit
05/08/2003WO2003039204A1 Evg units which may be wired in parallel due to lamp type
05/08/2003US20030085670 Ballast circuit with lamp cathode protection and ballast protection
05/08/2003US20030085669 Method and apparatus for lighting a discharge lamp
05/08/2003US20030085668 Safety starter for fluorescent lamps
05/08/2003DE20302522U1 Improved connection structure for fluorescent units used for LCD panel back lighting
05/07/2003EP1309233A2 High voltage discharge lamp device
05/07/2003EP1309232A2 High voltage discharge lamp device
05/07/2003EP1309230A2 High voltage discharge lamp device
05/07/2003EP1309229A2 High voltage discharge lamp device
05/07/2003EP1309228A2 High-pressure discharge lamp operation with lower frequency
05/07/2003EP1309060A2 High voltage discharge lamp device
05/07/2003EP1309015A2 Piezoelectric transformer and strobe apparatus having the piezoelectric transformer
05/07/2003EP1308069A1 Interface circuit and method for dimming a fluorescent lamp
05/07/2003EP1307899A1 Plasma lamp with dielectric waveguide
05/07/2003EP1307791A2 Circuit arrangement
05/07/2003EP1048190B1 Electronic lamp ballast
05/07/2003CN2549686Y Rapid igniting energy-saving lamps
05/07/2003CN2549685Y Passive power factor calibrating circuit, module and ballast containing it
05/07/2003CN2549644Y 高频安定电路 High frequency circuit stability
05/07/2003CN1416588A Circuit assembly for inclusion within fluorescent lamp
05/07/2003CN1416306A IC electronic ballast of fluorescent lamp
05/07/2003CN1416305A Power supply unit and used current converter
05/07/2003CN1416218A Inside embedded type remote controlled, hand controlled wall switch and module of monopole electric light with integral and apart wall box
05/06/2003US6559608 Lamp-voltage threshold detector
05/06/2003US6559607 Microwave-powered ultraviolet rotating lamp, and process of use thereof
05/06/2003US6559606 Lamp driving topology
05/02/2003EP1306607A2 Discharge lamp device
05/02/2003EP1305983A1 A system and method for determining the frequency of longitudinal mode required for color mixing in a discharge lamp
05/01/2003WO2003037044A1 Safety starter for fluorescent lamps
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