| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 01/03/2005 | CA2472889A1 Circuit arrangement for driving a high-pressure discharge lamp |
| 12/30/2004 | US20040263096 Method for operating at least one low-pressure discharge lamp and operating device for at least one low-pressure discharge lamp |
| 12/30/2004 | US20040263095 Backlight inverter for liquid crystal display panel of asynchronous pulse width modulation driving type |
| 12/30/2004 | US20040263093 Electrodeless light bulb type fluorescent lamp and discharge lamp lighting device |
| 12/30/2004 | US20040263092 Driving circuit for multiple cold cathode fluorescent lamps |
| 12/30/2004 | US20040263091 Electronic ballast with low voltage output |
| 12/30/2004 | US20040263090 Apparatus for emitting pulses of light and systems employing such apparatus |
| 12/30/2004 | US20040263089 Ballast control IC with multi-function feedback sense |
| 12/30/2004 | US20040263042 Lamp and method of manufacturing the same |
| 12/30/2004 | DE19708791C5 Steuerschaltung und elektronisches Vorschaltgerät mit einer derartigen Steuerschaltung Control circuit and electronic ballast with such a control circuit |
| 12/30/2004 | DE10326615A1 Method for initializing ignition process in cold cathode florescent lamps (CCFL) e.g. for lighting displays, involves generating strong electric AC field by forming high voltages or high energy impulses |
| 12/30/2004 | DE102004016165A1 Ignition system for high frequency (HF) high intensity discharge (HiD) lamp system for studio and scene taking applications, connectable to output circuit, comprising transformer with two secondaries |
| 12/29/2004 | WO2004114726A1 Voltage control system |
| 12/29/2004 | WO2004114362A2 Low voltage gas discharge lamp |
| 12/29/2004 | EP1492393A1 Ballast for fluorescent lamp and method to detect eol |
| 12/29/2004 | CN2667849Y Preheating starting electronic ballast circuit |
| 12/29/2004 | CN2667848Y Fluorescent lamp starting circuit |
| 12/29/2004 | CN1559161A Electronic ballast with lamp run-up current regulation |
| 12/29/2004 | CN1558707A Dimming circuit for electromagnetic induction lamp |
| 12/29/2004 | CN1558706A Circuit arrangement and method for starting and operating gas discharge lamps with heatable electrode filaments |
| 12/29/2004 | CN1558705A Circuit arrangement and method for starting and operating discharge lamps |
| 12/29/2004 | CN1558704A Light emitting diode control device |
| 12/29/2004 | CN1182758C Ballast for high-intensity discharge lamp |
| 12/29/2004 | CN1182599C Piezoelectric transformer inverter |
| 12/28/2004 | US6836082 Ballast and method of feeding a fluorescent lamp |
| 12/28/2004 | US6836080 Energy savings device and method for a resistive and/or an inductive load and/or a capacitive load |
| 12/28/2004 | US6836078 Circuit for lighting HID lamp |
| 12/28/2004 | US6836077 Electronic elimination of striations in linear lamps |
| 12/25/2004 | CA2465633A1 Method for operating at least one low-pressure discharge lamp and operating device for at least one low-pressure discharge lamp |
| 12/23/2004 | WO2004112444A1 Electric discharge lamp operating device |
| 12/23/2004 | WO2004066675A3 Dimming ballast control ic with flash suppression circuit |
| 12/23/2004 | US20040257005 Transient detection of end of lamp life condition apparatus and method |
| 12/23/2004 | US20040257004 Electronic ballast with ignition and operation control |
| 12/23/2004 | US20040257003 Lamp driving system |
| 12/23/2004 | US20040257002 Socket capacitance for discharge lamps |
| 12/23/2004 | US20040257001 Circuit arrangement |
| 12/23/2004 | US20040257000 Ballasting circuit |
| 12/23/2004 | US20040256960 Piezoelectric transformer |
| 12/23/2004 | DE10325872A1 Ansteuerschaltung für den Betrieb mindestens einer Lampe in einem dazugehörigen Lastkreis Drive circuit for operating at least one lamp in an associated load circuit |
| 12/23/2004 | DE10325771A1 Ansteuerung für einen Excimer-Strahler Control for an excimer lamps |
| 12/22/2004 | EP1488668A1 Electronic power circuit for gas discharge lamps |
| 12/22/2004 | EP1488667A1 Driver circuit for an electroluminescent lamp |
| 12/22/2004 | EP1488492A1 Lighting system comprising a plurality of sealed lighting modules supplied by a plurality of primary coils housed in a sealed carrier |
| 12/22/2004 | EP0978221B1 Circuitry for dimming a fluorescent lamp |
| 12/22/2004 | CN1557114A Electronic ballast system with dual power and dimming capability |
| 12/22/2004 | CN1181711C Electric load |
| 12/22/2004 | CN1181616C Inside embedded type remote controlled, hand controlled wall switch and module of monopole electric light with integral and apart wall box |
| 12/22/2004 | CN1181509C Electromagnetic device and high-voltage generating device and method of producing electromagnetic device |
| 12/21/2004 | US6833783 Processor based strobe with feedback |
| 12/21/2004 | US6833678 Circuit arrangement for operating discharge lamps |
| 12/21/2004 | US6833657 Heating element for fluorescent lamps |
| 12/16/2004 | WO2004110110A1 Discharge lamp lighting system |
| 12/16/2004 | WO2004110109A1 Light output modulation for data transmission |
| 12/16/2004 | WO2004110107A1 Energy savings device and method for a resistive and/or an inductive load and/or a capacitive load |
| 12/16/2004 | WO2004108415A2 Control for an excimer emitter |
| 12/16/2004 | WO2004095503A3 Assembly of a fluorescent lamp and an extension means |
| 12/16/2004 | WO2004073177A3 Inductively powered apparatus |
| 12/16/2004 | WO2003096135A8 Pwm controller with automatic low battery power reduction circuit and lighting device incorporating the controller |
| 12/16/2004 | US20040252990 Capacitor strobe charging device utilizing current detection to determine malfunction, and strobe and camera using same |
| 12/16/2004 | US20040252481 Backlight unit and liquid crystal display device having the same |
| 12/16/2004 | US20040251853 Full wave sense amplifier and discharge lamp inverter incorporating the same |
| 12/16/2004 | US20040251852 Electronic ballast for a discharge lamp |
| 12/16/2004 | US20040251851 Flashing discharge tube-use power supply and control method therefor |
| 12/16/2004 | US20040251850 Piezoelectric ceramic light starter |
| 12/16/2004 | US20040251849 Ballast apparatus and ballasting method of high intensity discharge lamp |
| 12/16/2004 | DE19618931B4 Schaltungsanordnung zum Betreiben einer Entladungslampe A circuit arrangement for operating a discharge lamp |
| 12/16/2004 | CA2528061A1 Energy savings device and method for a resistive and/or an inductive load and/or a capacitive load |
| 12/15/2004 | EP1486102A1 Circuit arrangement |
| 12/15/2004 | EP1486101A1 Electric circuit for igniting a discharge lamp, and electric component module and discharge lamp incorporating such an electric circuit |
| 12/15/2004 | EP1486100A1 Circuit and method of igniting a high-pressure lamp |
| 12/15/2004 | EP1377888A4 Digital dimming fluorescent ballast |
| 12/15/2004 | EP1050954B1 Circuit for driving piezoelectric transformer |
| 12/15/2004 | EP0933008B1 Circuit arrangement |
| 12/15/2004 | CN2664340Y Cathodic protection circuit arrangement for fluorescent lamp tube |
| 12/15/2004 | CN2664339Y Self-adapting electronic ballast for metal halide lamp |
| 12/15/2004 | CN2664338Y Power supply for LCD screen |
| 12/15/2004 | CN1554955A Method and device for checking remaining quantity of battery |
| 12/15/2004 | CN1180663C Electronic ballast circuit fot fluorescent lamp |
| 12/15/2004 | CN1180196C Illumination device |
| 12/14/2004 | US6831569 Method and system for assigning and binding a network address of a ballast |
| 12/14/2004 | US6831425 Xenon discharge lamp lighting device |
| 12/14/2004 | US6831424 Light source device of a liquid crystal display |
| 12/14/2004 | US6831423 High Q impedance matching inverter circuit with automatic line regulation |
| 12/14/2004 | US6831422 Operating circuit with an improved power supply for a driver circuit |
| 12/14/2004 | US6831420 Light emitting system, transmitting apparatus for use in light emitting system, and receiving apparatus for use in light emitting system |
| 12/14/2004 | US6831417 Method of manufacturing a lamp assembly |
| 12/09/2004 | WO2004107823A2 Circuit and method for operation of a gas discharge lamp |
| 12/09/2004 | WO2004107771A2 Methods and apparatuses for mounting a wireless network component to a fluorescent light |
| 12/09/2004 | WO2004107636A2 Deriving power for a wireless network component from the power source of a fluorescent light |
| 12/09/2004 | WO2004079906A3 Variable frequency half bridge driver |
| 12/09/2004 | WO2004055961A3 Resonance converter and method for driving variable loads |
| 12/09/2004 | WO2004010238A3 Single chip ballast control with power factor correction |
| 12/09/2004 | US20040246750 DC voltage conversion circuit |
| 12/09/2004 | US20040246742 Illumination device |
| 12/09/2004 | US20040246394 Backlight assembly for directly backlighting displays |
| 12/09/2004 | US20040246226 Inverter and liquid crystal display including inverter |
| 12/09/2004 | US20040245945 Method and apparatus for driving a gas discharge lamp |
| 12/09/2004 | US20040245944 Apparatus for driving lamp of liquid crystal display device |
| 12/09/2004 | US20040245943 Controllable lighting system with a second communication protocol and appliances for this purpose |
| 12/09/2004 | US20040245942 Circuit apparatus and method for operating a lamp |