Patents
Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100)
07/2005
07/19/2005US6919695 Overvoltage protection for hid lamp ballast
07/19/2005US6919694 Fixed operating frequency inverter for cold cathode fluorescent lamp having strike frequency adjusted by voltage to current phase relationship
07/19/2005US6919693 High-voltage transformer and discharge lamp driving apparatus
07/19/2005US6919692 Control device of gas-discharge light source
07/19/2005US6919687 High-voltage discharge lamp lighting apparatus, high-voltage discharge lamp apparatus, and floodlight projector apparatus
07/14/2005WO2005064997A1 Discharge lamp lighting apparatus and lamp system using the lighting apparatus
07/14/2005WO2005064228A2 Lighting device of discharge lamp, illumination apparatus and illumination system
07/14/2005US20050152163 Circuit arrangement for operating light sources
07/14/2005US20050151483 Projection type video display
07/14/2005US20050151482 Method and circuit arrangement for operating a high-pressure gas discharge lamp
07/14/2005US20050151481 Circuit arrangment for operating light sources
07/14/2005US20050151426 Evg units which may be wired in parallel due to lamp type
07/14/2005US20050151424 Device and method for driving a plurality of loads
07/14/2005DE4412510B4 Schaltungsanordnung zum Betreiben einer Hochdruck-Entladungslampe Circuit arrangement for operating a high pressure discharge lamp
07/14/2005DE4330615B4 Verfahren zum Betreiben einer Hochdruck-Entladungslampe A method for operating a high pressure discharge lamp
07/14/2005DE19821921B4 Schaltungsanordnung zum Betrieb einer Entladungslampe Circuit arrangement for operating a discharge lamp
07/14/2005DE19707986B4 Schaltungsanordnung zum Betreiben einer Entladungslampe A circuit arrangement for operating a discharge lamp
07/14/2005DE10359882A1 Schaltungsanordnung zum Betreiben von elektrischen Lampen Circuit arrangement for operating electric lamps
07/14/2005DE10357538A1 Ballast device for gas discharge lamp, esp. for fluorescent lamps, has switch off device joined to voltage generating device
07/13/2005EP1553811A2 Circuit arrangement for operating light sources with power factor correction
07/13/2005EP1553810A2 Circuit arrangement for operating light sources with power factor correction
07/13/2005EP1040399A4 Microprocessor controlled electronic ballast
07/13/2005CN2710307Y Infrared controllable turn-off lamp device
07/13/2005CN2710306Y 电子镇流器 Electronic Ballast
07/13/2005CN2710305Y Voltage stabilization electric-saving device for high-voltage sodium lamp
07/13/2005CN2710304Y Stroboscopic eliminating lamp
07/13/2005CN2710157Y Electromagnetic induction lamp
07/13/2005CN1640208A Circuit arrangement
07/13/2005CN1640207A Electronic circuit and method of supplying energy to a high-pressure gas-discharge lamp
07/13/2005CN1640206A Electric circuit for igniting a discharge lamp, and electric component module and discharge lamp incorporating such an electric circuit
07/13/2005CN1638597A Single-stage backlight inverter and method for driving the same
07/13/2005CN1638596A Circuit device for driving light source
07/13/2005CN1638595A Circuit device for driving light source
07/13/2005CN1638594A Drive circuit for lighting unit
07/13/2005CN1638593A Method for operating a low pressure discharge lamp
07/13/2005CN1638592A High pressure discharge lighting device and projector device
07/13/2005CN1638591A Electric circuit with integrated feed
07/13/2005CN1638590A Continuous mode ballast with pulsed operation
07/13/2005CN1638589A Charge pump circuit to operate control circuit
07/13/2005CN1638588A Discharge lamp lighting device and illuminating equipment
07/13/2005CN1638584A 有机电致发光显示装置 Organic electroluminescent display device
07/13/2005CN1638264A 电流控制电路 Current control circuit
07/13/2005CN1637966A High-voltage triggering transformer for flash lamp circuit of camera or cellphone
07/13/2005CN1637945A Power-up circuit semiconductor memory device
07/13/2005CN1637824A Method and apparatus for driving liquid crystal display
07/13/2005CN1637822A Device and method for driving a plurality of loads
07/13/2005CN1637496A Method and apparatus for driving liquid crystal display device
07/13/2005CN1210997C Apparatus for supplying power for fluorescent lamp
07/12/2005US6917354 Fluorescent lamp, fluorescent lamp unit, liquid crystal display device, and method of emitting light
07/12/2005US6917231 Pulse width modulation circuit and illuminating device incorporating same
07/12/2005US6917163 Inductively powered lamp assembly
07/12/2005CA2076813C End cap applicators for high frequency electrodeless lamps
07/09/2005CA2491773A1 Circuit arrangement for operating light sources
07/09/2005CA2491559A1 Circuit arrangement for operating light sources
07/07/2005WO2005062684A1 Method and circuit arrangement for operating a discharge lamp
07/07/2005WO2005062683A2 Apparatus and method for controlling discharge lights
07/07/2005WO2005062681A1 System and method for applying power to high intensity discharge lamps
07/07/2005WO2005062680A1 Illumination control system
07/07/2005WO2005062674A1 Apparatus and method for producing variable intensity of light
07/07/2005WO2005062139A1 Control system and illumination control system
07/07/2005US20050146907 Single-stage backlight inverter and method for driving the same
07/07/2005US20050146906 Power feedback power factor correction high frequency inverter
07/07/2005US20050146653 Liquid crystal display
07/07/2005US20050146291 Liquid crystal display and device of driving light source therefor
07/07/2005US20050146290 System and method for powering cold cathode fluorescent lighting
07/07/2005US20050146287 Continuous mode ballast with pulsed operation
07/07/2005US20050146286 Multi-lamp drive device
07/07/2005US20050146285 Circuit and method of igniting a high-pressure lamp
07/07/2005US20050146284 Device and method for controlling a gas discharge lamp, and lighting system with gas discharge lamp and control device
07/07/2005US20050146283 Charge pump circuit to operate control circuit
07/07/2005US20050146245 Ceramic transformer level driving circuit
07/07/2005US20050145880 Strobe light control circuit and IGBT device
07/07/2005DE202005006585U1 Lamp, comprises a base, an arm connected to the base, and a barrier discharge lamp which is connected to the arm via a holder
07/07/2005DE202005006549U1 Flashlight for lighting signals on towers and high buildings has a storage capacitor, a flash tube, a control device and a synchronizing device
07/07/2005DE19801132B4 Stromversorgungsschaltung für eine Entladungslampe mit Leuchtzustandsdetektor Power supply circuit for a discharge lamp with light-emitting state detector
07/07/2005DE19622803B4 Schaltungsanordnung für Hochdruck-Entladungslampe Circuitry for high-pressure discharge lamp
07/06/2005EP1551208A2 Continuous mode ballast with pulsed opration
07/06/2005EP1551207A2 Charge pump circuit to operate control circuit
07/06/2005EP1550357A1 Device and method for determining the current flowing through a gas discharge lamp
07/06/2005EP1504316A4 Pvm controller with automatic low battery power reduction circuit and lighting device incorporating the controller
07/06/2005CN2708605Y Multifunctional sound control rectifier
07/06/2005CN1636424A Starter assembly for a gas discharge lamp
07/06/2005CN1635823A Micro-control electronic ballast system for high-intensity discharge lamp
07/06/2005CN1635606A Multi-power luminous tube
07/06/2005CN1209946C Method and apparatus for operating discharge lamp
07/05/2005US6914395 Electronic ballast for a high-pressure discharge lamp
07/05/2005US6914394 Supply circuit, in particular for a discharge lamp
07/05/2005US6914393 Method and device for lighting high pressure discharge lamps
07/05/2005US6914392 Switching apparatus for operating discharge lamps
07/05/2005US6914391 Illuminating device
07/05/2005US6914365 Piezoelectric transformation driving apparatus
07/05/2005US6914261 Light emitting diode module
07/05/2005CA2253468C Universal high intensity discharge (hid) electronic starter
06/2005
06/30/2005WO2005060320A1 Electronic ballast with lamp type determination
06/30/2005WO2005060319A1 Electronic ballast with open circuit voltage regulation
06/30/2005WO2005060083A1 Discharge lamp operation device and lighting fixture
06/30/2005WO2005059964A2 Current-mode driver
06/30/2005WO2004091258A3 High frequency electronic ballast with sine wave oscillator
06/30/2005US20050141151 Integrated multi-capacitor network
06/30/2005US20050140639 Method and apparatus for driving liquid crystal display