Patents
Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100)
06/2007
06/13/2007CN1980515A Inlaid self-adaptive control electronic transformer
06/13/2007CN1980514A Telecontrolled light-regulation energy-saving apparatus
06/13/2007CN1980513A Discharge lamp lighting device and projection type image display apparatus having the same
06/13/2007CN1980512A Drive control circuit of cold cathode fluorescent lamp and method therefor
06/13/2007CN1980511A Back-light open circuit protection circuit
06/13/2007CN1980510A Improved starting drive mean used for mercury-free plane lamp
06/13/2007CN1980509A Multi-lamp-tube driving system
06/13/2007CN1980508A Lighting-drive device, light source device, and display device
06/13/2007CN1980507A Starting circuit and back-light starting circuit
06/13/2007CN1980505A Efficient energy-saving lighting system
06/13/2007CN1980033A DC./ac. convertion driving circuit
06/13/2007CN1980030A Control circuit of DC/DC converter, luminous device and electronic equipment
06/13/2007CN1979757A High-frequency pole-free lamp
06/13/2007CN1321547C Ballast for a discharge lamp
06/12/2007US7230526 Device and method for synchronizing a flasher frequency with a central flashing frequency
06/12/2007US7230391 Multi-phase input dimming ballast with flyback converter and method therefor
06/12/2007US7230324 Strobe light control circuit and IGBT device
06/07/2007WO2007063444A1 System and method for operating a gas discharge lamp and method of use thereof
06/07/2007WO2007062556A1 Ballast device in power saving and voltage regulation
06/07/2007WO2007050047A8 Electronic ballast with closed loop control using composite current and voltage feedback and method thereof
06/07/2007US20070126375 Driver control circuit and method for cold cathode fluorescent lamp
06/07/2007US20070126374 Discharge lamp lighting device and projection type image display apparatus having the same
06/07/2007US20070126373 Power source driving circuits and controllers thereof
06/07/2007US20070126372 Power supply devices
06/07/2007US20070126371 Methods and circuits for instant hot restart of high intensity discharge lamps
06/07/2007US20070126370 Inverter circuit, backlight assembly, and liquid crystal display with backlight assembly
06/07/2007US20070126369 Apparatus for driving a plurality of lamps
06/07/2007US20070126365 Inductively powered apparatus
06/06/2007EP1793655A2 Electronic ballast with circuit monitoring the operating state and method thereof
06/06/2007EP1792524A1 Method and circuit for supplying a hot cathode fluorescent lamp
06/06/2007EP1792523A1 Igniting device
06/06/2007DE102005057068A1 Steuerungssystem für mehrere verteilt angeordnete Verbraucher, insbesondere für Lampenbetriebsgeräte, sowie Verfahren zur Inbetriebnahme Control system for several distributed consumers arranged, in particular lamp operating devices, and processes for commissioning
06/06/2007CN2909777Y High power automatic energy-saving emergency lamp
06/06/2007CN2909776Y Power-supply module
06/06/2007CN2909775Y Tube lamp ballast
06/06/2007CN2909774Y 节能灯镇流器 Energy-saving lamp ballasts
06/06/2007CN2909773Y 一种电子镇流器 An electronic ballast
06/06/2007CN2909772Y Power supply circuit of T5 fluorescent lamp
06/06/2007CN2909771Y Balance control circuit of cold-cathode fluorescent lamp
06/06/2007CN2908991Y Dazzle lighting system of stair railing
06/06/2007CN1977571A Method and circuit arrangement for operating a high-pressure gas discharge lamp
06/06/2007CN1977570A 荧光管灯驱动电路 Fluorescent tube lamp drive circuit
06/06/2007CN1976194A 功率调节器 Power regulator
06/06/2007CN1320845C Discharge tube ignitor
06/05/2007US7227317 Method and system for enhanced dimming resolution in a light ballast through use of multiple control frequencies
06/05/2007US7227316 Protective and measure device for multiple cold cathode fluorescent lamps
06/05/2007US7227312 Organic electroluminescent display device
06/05/2007CA2442083C Electronic dimmable ballast for high intensity discharge lamp
05/2007
05/31/2007WO2007060941A1 Inverter, its control circuit, and light emitting device and liquid crystal television using the same
05/31/2007WO2007060772A1 Inverter for light source device, light source device, display device, and liquid crystal display device
05/31/2007WO2007060762A1 Discharge tube, illuminating device for display, liquid crystal display and liquid crystal television
05/31/2007WO2007043167A9 Illuminating device comprising flat discharge tube
05/31/2007WO2006119082A3 Electronic ballast having missing lamp detection
05/31/2007US20070120504 Method for driving a fluorescent lamp and an inverter circuit for performing such a method
05/31/2007US20070120503 Open protection circuit for backlight module
05/31/2007US20070120502 Inverter circuit, backlight assembly and liquid crystal display with the same
05/31/2007US20070120501 Control circuit and method for driving a gas discharge lamp
05/31/2007US20070120500 Lamp assembly, backlight assembly having the same, display device having the same, and method of driving lamps
05/31/2007US20070120499 Inverter circuit, backlight assembly, and liquid crystal display with backlight assembly
05/31/2007US20070120498 Current driving circuit for inductive loads
05/31/2007US20070120441 Piezoelectric transformer driving apparatus and piezoelectric transformer driving method
05/31/2007DE102006040161A1 Startverfahren für die quecksilberfreie, flache Leuchtstofflampe Start method for the mercury-free flat fluorescent lamp
05/31/2007DE102005056229A1 Steuerschaltung sowie Verfahren zur Ansteuerung einer Gasentladungslampe Control circuit and method for driving a gas discharge lamp
05/31/2007DE102005055831A1 Elektronisches Vorschaltgerät mit Betriebszustandsüberwachung und entsprechendes Verfahren Electronic ballast with operating condition monitoring and corresponding method
05/31/2007DE102005054969A1 Verfahren zum Betrieb einer Strahlungsquelle mit einer UV-Licht erzeugenden Lampe zur Bestrahlung von Innenwänden langgestreckter Hohlräume sowie Anordnung zur Durchführung des Verfahrens A method for operating a radiation source generating a UV-light lamp for irradiating inner walls of elongate cavities as well as arrangement for carrying out the method
05/30/2007EP1402311A4 External electrode fluorescent lamp, back light unit using the external electrode fluorescent lamp, lcd back light equipment using the back light unit and driving device thereof
05/30/2007EP0835598A4 Single switch ballast with integrated power factor correction
05/30/2007CN2907172Y Variable luminance fluorescent lamp
05/30/2007CN2907171Y Low-frequency sine wave electronic ballast for HID lamp
05/30/2007CN2907170Y Power-saving voltage regulation and ballasting device
05/30/2007CN2907169Y Electrodeless lamp ballasting circuit
05/30/2007CN2907167Y Automatic lighting circuit controller in lecture room
05/30/2007CN2906323Y Energy-saving replaceable self-ballasted straight-tube fluorescent lamp
05/30/2007CN1973584A System and method for generating a discharge in gases
05/30/2007CN1973583A Method and driving circuit for operating a hid lamp
05/30/2007CN1973582A 气体放电灯驱动方法 Method for driving a gas discharge lamp
05/30/2007CN1972548A Current mode syntonic ballast
05/30/2007CN1972547A Discharge lamp lighting apparatus
05/30/2007CN1972546A Backlight module control circuit of multi-lamp tube display apparatus
05/30/2007CN1971838A DC fluorescent lamp
05/30/2007CN1319421C Detection and regulation method for LCD brightness
05/30/2007CN1319420C Method for lighting control networks and communications interface circuits for same
05/30/2007CN1319415C Circuit strycture for controlling semiconductor light source and its signal lamp
05/30/2007CN1319113C Plasma lamp system and bulb therefor
05/29/2007US7224196 Method and system for synchronizing phase of triangular signal
05/29/2007US7224129 Discharge lamp drive apparatus and liquid crystal display apparatus
05/29/2007US7224125 Dimmable fluorescent lamp package
05/29/2007US7224124 Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps
05/24/2007WO2007058216A1 Inverter, its drive method, light emitting device and liquid crystal television using the same
05/24/2007WO2007057162A1 Method for operating a radiation source with a uv-light-producing metal halide lamp and arrangement for carrying out the method
05/24/2007US20070114953 Backlight assembly
05/24/2007US20070114952 Light source driver circuit
05/24/2007US20070114951 Drive circuit for a light emitting diode array
05/24/2007US20070114950 Charging circuit
05/24/2007US20070114949 Pwm illumination control circuit with low visual noise for driving led
05/24/2007US20070114944 Power supply system and liquid crystal display device having the same
05/24/2007US20070114943 Method and device for driving a metal halide lamp
05/23/2007CN2904562Y Railway rail illuminating device with wireless remote-control
05/23/2007CN2904561Y Roadlamp electricity saver and roadlamp system
05/23/2007CN2904560Y Split-type electronic ballast for high-voltage gas discharge lamp