Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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12/19/2007 | CN100356820C Fluorescent light life stop protective circuit |
12/19/2007 | CN100356819C Light-modulating ballast interface circuit |
12/19/2007 | CN100356265C Camera flash |
12/18/2007 | US7310246 Capacitor charging circuit and strobe apparatus comprising same |
12/18/2007 | US7309964 Floating drive circuit for cold cathode fluorescent lamp |
12/18/2007 | US7309963 Smoothing circuit for improving EMC |
12/13/2007 | WO2007142947A2 Lighting device with color control, and method of lighting |
12/13/2007 | WO2007141676A1 Method and device for driving a lamp |
12/13/2007 | WO2007141674A1 Illumination device |
12/13/2007 | WO2007141562A1 Ballast |
12/13/2007 | WO2007141242A1 High-pressure discharge lamp with an improved starting capability, as well as a high-voltage pulse generator |
12/13/2007 | WO2007141237A1 High-pressure discharge lamp with an improved starting capability, as well as a high-voltage pulse generator |
12/13/2007 | WO2007140709A1 A combined type self-ballasting strip lamp |
12/13/2007 | WO2007056633A3 Method and apparatus for power control |
12/13/2007 | US20070285955 Parallel Operating System of DC-AC Converters and Controller IC Therefor |
12/13/2007 | US20070285033 Methods and protection schemes for driving discharge lamps in large panel applications |
12/13/2007 | US20070285032 Lighting System |
12/13/2007 | US20070285031 System and Method for Driving LED |
12/13/2007 | US20070285030 Discharge centering lamp lighting device |
12/13/2007 | US20070285029 Backlight driving apparatus of liquid crystal display and method for driving backlight driving apparatus |
12/13/2007 | DE19654539B4 Entladungslampensteuerung Discharge lamp control |
12/12/2007 | EP1864554A1 Electrodeless discharge lamp lighting device and lighting apparatus |
12/12/2007 | EP1464209B1 Electronic circuit, and method of operating a high-pressure lamp |
12/12/2007 | CN200990714Y Fluorescent lamp unipolar ballast |
12/12/2007 | CN200990713Y Low-frequency square-wave electronic ballast for HID lamp |
12/12/2007 | CN200990708Y Adaptive LED back timing signal lamp intelligent electric source control switch |
12/12/2007 | CN200990557Y Ultralow-loss field effect tube (FET) driver |
12/12/2007 | CN100355322C Lamp turn-on device of discharging tube and discharging tube device |
12/12/2007 | CN100354023C Removable closure assembly for a water treatment system |
12/11/2007 | US7307389 Digital ballast |
12/11/2007 | US7307388 Backlight modules and lamp modules in flat panel displays |
12/11/2007 | US7307386 Process for operating a discharge lamp |
12/11/2007 | US7307384 Circuit having a second ac/dc converter |
12/06/2007 | WO2007139107A1 Fluorescent lamp operation device |
12/06/2007 | WO2007138969A1 Discharge lamp operation device and illumination instrument |
12/06/2007 | WO2007138553A2 Lamp driving circuit |
12/06/2007 | WO2007138549A1 Lamp driving circuit |
12/06/2007 | WO2007138507A1 Method and system for operating a gas discharge lamp |
12/06/2007 | WO2007138237A1 High intensity discharge lamp ballast |
12/06/2007 | WO2007002208A3 Emergency and low-lighting system |
12/06/2007 | WO2005112522A3 Methods and apparatus for an improved amplifier for driving a non-linear load |
12/06/2007 | US20070279946 Dc-ac converter, and method for supplying ac power |
12/06/2007 | US20070279368 Low intensity displays compatible with night vision imaging systems |
12/06/2007 | US20070278974 Lighting device with color control, and method of lighting |
12/06/2007 | US20070278973 Drive circuit for an ignition element of a safety system |
12/06/2007 | US20070278972 Current-limited starting type capacitive electronic ballast for fluorescent lamp |
12/06/2007 | US20070278971 System and method for open lamp protection |
12/06/2007 | US20070278969 Lamp drive circuit |
12/06/2007 | US20070278968 Power supply apparatus |
12/06/2007 | US20070278967 Method for starting a discharge lamp using high energy initial pulse |
12/06/2007 | DE202007008870U1 Hochleistungsleuchtmittel und Hochleistungsleuchte für Überkopfbetrieb High power light source and high power light for overhead operation |
12/06/2007 | DE102007024467A1 Entladungslampen-Betriebsschaltung A discharge lamp operating circuit |
12/06/2007 | DE102006025944A1 Entladungslampe mit außenliegenden Elektroden auf Platine Discharge lamp with external electrodes on board |
12/06/2007 | DE102006025507A1 Aging discharge lamp early warning and control method involves releasing of aging signal of discharge lamp in case of difference of later performance parameters compared to former performance parameter to release and display signal |
12/06/2007 | CA2652927A1 Discharge-lamp lighting device and luminaire |
12/05/2007 | EP1863325A1 Cold-cathode tube drive device |
12/05/2007 | EP1862038A1 Ignition circuit with increased fail-safety |
12/05/2007 | CN200987230Y Protecting equipment and multiple lamp tubes driving system using the same |
12/05/2007 | CN200987076Y Charging emergent sun lamp circuit |
12/05/2007 | CN101084700A Multuple-light discharge lamp lighting device |
12/05/2007 | CN101083866A Illumination system and liquid crystal display |
12/05/2007 | CN101083865A System and method for open lamp protection |
12/05/2007 | CN101083864A Lighting circuit for discharge lamp |
12/05/2007 | CN101083863A Drive circuit for discharging tube and control method thereof |
12/05/2007 | CN101083862A Deuterium lamp lighting detection recognizing device |
12/05/2007 | CN101082715A Inverter for liquid crystal display device and liquid crystal display module using the same |
12/05/2007 | CN101082714A Inverter for driving backlight devices in a large LCD panel |
12/04/2007 | US7304633 Inverter device, liquid crystal display device using the inverter device, and method of monitoring lamps of the liquid crystal display device using the inverter device |
12/04/2007 | US7304439 Phase-controlled dimmable electronic ballasts for fluorescent lamps with very wide dimming range |
12/04/2007 | US7304438 Method and apparatus for preventing instabilities in radio-frequency plasma processing |
12/04/2007 | US7304284 Apparatus for monitoring a lamp, system having the same for monitoring a lamp, backlight assembly having the same and liquid crystal display apparatus having the same |
11/29/2007 | WO2007107447A9 Switch-off time regulator for an inverter for driving a lamp |
11/29/2007 | WO2007093516A3 Circuit arrangement for providing an operating dc voltage |
11/29/2007 | WO2007044948A3 Dimmable ballast control integrated circuit |
11/29/2007 | US20070273304 High intensity discharge lamp ballast |
11/29/2007 | US20070273301 Discharge-lamp lighting apparatus |
11/29/2007 | US20070273300 Discharge-lamp lighting apparatus |
11/29/2007 | US20070273299 AC light emitting diode and AC LED drive methods and apparatus |
11/29/2007 | DE102006024700A1 Elektronisches Lampenvorschaltgerät mit Heizschaltung Electronic lamp ballast with heating circuit |
11/28/2007 | EP1860925A1 Electronic lamp cut-in unit with heater switch |
11/28/2007 | EP1859658A2 A method and a circuit arrangement for operating a high intensity discharge lamp |
11/28/2007 | EP1803332A4 Sinewave dimmer control method |
11/28/2007 | EP1597944B1 Apparatus for power control in lighting systems |
11/28/2007 | CN200983712Y Driving device of discharge lamp and electronic device using same |
11/28/2007 | CN200983711Y Driving device of discharge lamp and electronic device using same |
11/28/2007 | CN200983710Y 路灯节电器 Lights Power Saver |
11/28/2007 | CN200983709Y An electronic ballast shell |
11/28/2007 | CN200983701Y A single line light-adjusting device |
11/28/2007 | CN200983353Y DC fluorescent lamp |
11/28/2007 | CN200983352Y Loop cold cathode fluorescent lamp |
11/28/2007 | CN200982566Y Support for lamp tube |
11/28/2007 | CN101080955A Discharge lamp ballast apparatus |
11/28/2007 | CN101080954A A method for supplying a gas discharge lamp, and a ballast circuit for such lamp |
11/28/2007 | CN101080953A Hf gas discharge lamp circuit |
11/28/2007 | CN101080129A Electronic blast and method for running the same |
11/28/2007 | CN101080128A Cycle framework driving system and method of multi-tube CCFL and/or EEFL |
11/28/2007 | CN101080125A Digital control circuit and system of optical source module |
11/28/2007 | CN101079370A Built-in magnetic energy generator magnetic light |
11/28/2007 | CN101079369A Non internal electrode and no Hg highly efficient and long-life gas discharge surface light source |
11/28/2007 | CN101079368A Non internal electrode and micro-Hg highly efficient and long-life gas discharge surface light source |