| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
|---|
| 12/31/2002 | US6501234 Sequential burst mode activation circuit |
| 12/31/2002 | US6501231 Metal halide lightbulb strobe system |
| 12/31/2002 | US6501225 Ballast with efficient filament preheating and lamp fault protection |
| 12/31/2002 | US6501209 Piezoelectric transformer driving circuit |
| 12/27/2002 | WO2002104084A1 High efficiency driver apparatus for driving a cold cathode fluorescent lamp |
| 12/27/2002 | WO2002104083A2 Apparatus and method for driving a high intensity discharge lamp |
| 12/27/2002 | WO2002104082A1 Electronic ballast for a high intensity discharge lamp |
| 12/27/2002 | WO2002104081A1 Electronic ballast |
| 12/27/2002 | WO2002103665A1 Inverter for liquid crystal display, and power supply arrangement comprising such an inverter |
| 12/27/2002 | WO2002065819A3 Lamp electronic end cap for integral lamp |
| 12/26/2002 | US20020195976 Method and apparatus for canceling ripple current in a lamp |
| 12/26/2002 | US20020195974 Auxiliary lighting system for high intensity discharge lamp |
| 12/26/2002 | US20020195973 Integrated filter with common-mode and differential-mode functions |
| 12/26/2002 | US20020195972 Lamp operating device having a starter circuit |
| 12/26/2002 | US20020195971 High efficiency driver apparatus for driving a cold cathode fluorescent lamp |
| 12/26/2002 | US20020195954 Device and method for controlling LCD backlight |
| 12/26/2002 | US20020195953 Method and apparatus for controlling the temperature of a multiparameter light and/or a component thereof using orientation and/or parameter information |
| 12/26/2002 | US20020195927 Liquid crystal picture screen with improved backlighting |
| 12/25/2002 | CN2528187Y 电子镇流器 Electronic Ballast |
| 12/25/2002 | CN2528158Y High power switch power supply |
| 12/25/2002 | CN1387394A Drive system of fluorescent lamp and fluorescent lamp system using it |
| 12/25/2002 | CN1387393A Energy-saving fluorescent lamp with negative ion generator |
| 12/25/2002 | CN1387392A Light stabilizer of fluorescent lamp with stable brightness and stepless light regulation |
| 12/25/2002 | CN1097420C Switching device |
| 12/25/2002 | CN1097419C Method for igniting and operating high-pressure discharge lamp and circuit for performing said method |
| 12/25/2002 | CN1097292C Discharge lamp and method for operating it |
| 12/24/2002 | US6498901 Flash photography system |
| 12/24/2002 | US6498442 Self-heating type cold-cathode discharge tube control apparatus |
| 12/24/2002 | US6498441 Method for coloring mixing of hid lamps operated at VHF frequencies using duty cycle modulation |
| 12/24/2002 | US6498439 Ballast for feeding a high-pressure gas discharge lamp |
| 12/24/2002 | US6498437 Short circuit protection for multiple lamp LCD backlight ballasts with PWM dimming |
| 12/24/2002 | US6498436 Method for operating a lamp, particularly for medical applications, and a lamp having a discharge lamp |
| 12/24/2002 | US6498434 Piezoelectric transformer, driver circuit incorporating the piezoelectric transformer, and liquid crystal display apparatus incorporating the driver circuit |
| 12/20/2002 | CA2389192A1 Hot restrike protection circuit for self-oscillating lamp ballast |
| 12/19/2002 | WO2002102121A1 Method and apparatus for determining power frequencies that cause arc instabilities in discharge lamps |
| 12/19/2002 | WO2002102120A1 Discharge lamp igniter device and projector device |
| 12/19/2002 | WO2002102119A1 Detection of asymmetrical load in an ac-circuit |
| 12/19/2002 | WO2002102114A2 Electronic lighting ballast |
| 12/19/2002 | US20020191429 Single stage PFC + ballast control circuit/general purpose power converter |
| 12/19/2002 | US20020190720 System for testing the presence of an ignitor pulse within a high intensity discharge luminaire |
| 12/19/2002 | US20020190704 Detection of asymmetrical load in an AC circuit |
| 12/19/2002 | US20020190668 High-pressure discharge lamp |
| 12/19/2002 | US20020190667 Discharge lamp apparatus and projector using the same |
| 12/19/2002 | US20020190665 Apparatus and method for driving a high intensity discharge lamp |
| 12/19/2002 | US20020190611 Piezoelectric transformer, piezoelectric transformer unit, inverter circuit, light emission control device, and liquid crystal display device |
| 12/19/2002 | US20020189986 Point-of-use water treatment system |
| 12/19/2002 | DE10226607A1 Discharge lamp device and projector has power unit in the base of the metal casing separated from the ignition coil on the open side |
| 12/19/2002 | DE10223933A1 Glühentladungslampe, Elektrode hierfür und Leuchtkörper Glow, this electrode and filament |
| 12/19/2002 | DE10203356A1 Adapter for cold cathode fluorescent lamp, has constant current source with several Royer converters connected in series circuit at their inputs and each able to be switched off individually |
| 12/19/2002 | CA2388902A1 High-pressure discharge lamp |
| 12/18/2002 | EP1267426A2 Piezoelectric transformer |
| 12/18/2002 | CN2527061Y Non-power controlled flash-controller for electronic leon lamp transformer |
| 12/18/2002 | CN2527060Y Xenon lamp pulse trigger for motion picture projection |
| 12/18/2002 | CN2527059Y Superposed magnetic ring capable of increasing lamp tube power for electronic ballast and self-ballast fluorescent lamp |
| 12/18/2002 | CN2526972Y Scanning glow starting neon lamp |
| 12/18/2002 | CN1386393A System and method for determining the frequency of longitudinal mode required for color mixing in a discharge lamp |
| 12/18/2002 | CN1386295A High-pressure discharge lamp |
| 12/18/2002 | CN1386216A 电路布置 Circuit layout |
| 12/18/2002 | CN1386040A Low-harmonic compact type energy-saving lamp electronic ballast |
| 12/18/2002 | CN1385867A Operation device for light source with low cost coil component |
| 12/18/2002 | CN1385752A Photographic film unit with lens and electronic flash device for same |
| 12/18/2002 | CN1096823C Discharge lamp ballast |
| 12/18/2002 | CN1096822C High-pressure discharge lamp lighting device |
| 12/17/2002 | US6496387 Resonant converter comprising a control circuit |
| 12/17/2002 | US6496012 Apparatus and method for detecting a short circuit in a lighting system |
| 12/17/2002 | US6495974 Power supply for brightness control of a gas-discharge tube |
| 12/17/2002 | US6495972 Dielectric barrier discharge lamp light source |
| 12/17/2002 | US6495971 High intensity discharge lamp ballast |
| 12/17/2002 | US6495969 Series-resonant ballast having overload control |
| 12/17/2002 | CA2092236C Low loss, electronic ballast |
| 12/12/2002 | US20020186014 Dual lamp system |
| 12/12/2002 | US20020185982 High power factor electronic ballast with load dependent bus voltage regulation |
| 12/12/2002 | US20020185980 Circuit arrangement |
| 12/12/2002 | US20020185977 Glow discharge lamp, electrode thereof and luminaire |
| 12/12/2002 | US20020185971 Discharge lamp with improved starting |
| 12/12/2002 | DE10201852A1 Entladungslampen-Beleuchtungseinrichtung A discharge lamp lighting device |
| 12/12/2002 | DE10127135A1 Dimmer electronic adapter for fluorescent lamp(s) has capacitive potential divider, transformer primary current value fed to comparator element to check current admissibility |
| 12/11/2002 | EP1265461A2 Electronic elimination of striations in linear lamps |
| 12/11/2002 | EP1265460A2 Inverter transformer |
| 12/11/2002 | EP0992179B1 Power supply for hybrid illumination system |
| 12/11/2002 | CN2525766Y High frequency constant amplitude electronic ballast |
| 12/11/2002 | CN1096219C Circuit arrangement for ignition of high intensity discharge lamp |
| 12/10/2002 | US6492891 Transformer device, high voltage generating apparatus having the same, and lighting system having them |
| 12/10/2002 | US6492780 Lamp ballast system |
| 12/10/2002 | US6492773 Self-ballasted fluorescent lamp |
| 12/10/2002 | US6491868 Used to filter and treat contaminants in water |
| 12/05/2002 | WO2002098187A1 Power control device, apparatus and method of controlling the power supplied to a discharge lamp |
| 12/05/2002 | WO2002098186A1 Electronic ballast for a high intensity discharge lamp |
| 12/05/2002 | WO2002098185A1 High efficiency high power factor electronic ballast |
| 12/05/2002 | WO2002098184A1 Automatic cycling control for hid lamps |
| 12/05/2002 | WO2002098181A1 Remote control of electronic light ballast and other devices |
| 12/05/2002 | WO2002097548A1 Amplitude control of gas discharge lamps |
| 12/05/2002 | WO2002078405A3 Panic protection from fault conditions in power converters |
| 12/05/2002 | WO2002078404A3 Capacitively coupled fluorescent lamp package |
| 12/05/2002 | US20020181949 Lens-fitted photo film unit with electronic flash device |
| 12/05/2002 | US20020181260 Inverter operably controlled to reduce electromagnetic interference |
| 12/05/2002 | US20020181178 System for monitoring electrical circuit operation |
| 12/05/2002 | US20020180904 Device for illuminating a liquid crystal screen |
| 12/05/2002 | US20020180572 Electromagnetic device and high-voltage generating device and method of producing electromagnetic device |
| 12/05/2002 | US20020180384 System and method of automatic cycling control for HID lamps |