Patents
Sitemap › H05 - Electric techniques not otherwise provided for › H05B - Electric heating; Electric lighting not otherwise provided for › H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps
Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100)
05/2003
05/01/2003WO2003037043A1 Socket capacitance for discharge lamps
05/01/2003WO2003036405A1 Lamp driving topology
05/01/2003WO2002077740A8 Electronic ballast for cold cathode fluorescent lamp with dimming
05/01/2003WO2002060227A3 Wiring geometry for multiple integral lamps
05/01/2003US20030080697 Portable fluorescent drop-light
05/01/2003US20030080696 Phase-controlled dimmable electronic ballasts for fluorescent lamps with very wide dimming range
05/01/2003US20030080695 Discharge lamp starter
05/01/2003US20030080694 Ballast circuit with an ignitor for starting multiple HID lamps
05/01/2003US20030080693 Method for operating high-pressure discharge lamp, lighting apparatus, and high-pressure discharge lamp apparatus
05/01/2003US20030080692 Operating circuit for a discharge lamp with preheatable electrodes
04/2003
04/30/2003CN2548388Y Electronic ballast for gas discharge lamp
04/30/2003CN2548387Y Drive circuit for multi cold cathode fluorescence lamp tube
04/30/2003CN1414820A Method for operating high-voltage discharge lamp, lighting installation and high-voltage discharge lamp
04/30/2003CN1107439C 电路装置 Circuit device
04/30/2003CN1107438C Group control method for electronic ballasts with high power factor
04/29/2003US6556790 Electronic flash device
04/29/2003US6556463 Reduced electronic noise power supply to discharge lamps, especially for motor vehicle headlights
04/29/2003US6556132 Strobe circuit
04/29/2003US6555974 Wiring geometry for multiple integral lamps
04/29/2003US6555973 Arrangement in connection with discharge lamp
04/29/2003US6555972 High frequency, high efficiency electronic lighting system with metal halide lamp
04/29/2003US6555971 High frequency, high efficiency quick restart lighting system
04/29/2003US6555970 Ballast for gas discharge lamps with shutdown of the filament heating
04/29/2003US6555966 Closed loop lighting control system
04/24/2003WO2003034796A1 Rapid-firing flashlamp discharge circuit
04/24/2003WO2003034795A1 Method and apparatus for driving a gas discharge lamp
04/24/2003WO2003034794A1 Short-circuit ballast protection
04/24/2003WO2003034793A1 Circuit arrangement for operating a discharge lamp
04/24/2003US20030076055 Short circuit ballast protection
04/24/2003US20030076054 Power supply circuit for a cold-cathode fluorescent lamp
04/24/2003US20030076053 Ballast for a discharge lamp
04/24/2003US20030076052 Lamp driving topology
04/24/2003DE20204407U1 Regulator circuit for control of a fluorescent electrical lamp used in dimming circuit
04/23/2003EP1304908A1 Error correction of reference values in electronic circuits
04/23/2003EP1304725A2 Electrodeless discharge lamp using microwave energy
04/23/2003EP1304724A2 Bulb with reflector and electrodeless discharge lamp using same
04/23/2003EP1304723A2 Electrodeless lighting system
04/23/2003EP0865673B1 Piezo-electric transformer
04/23/2003CN2547089Y Electroinc ballast module
04/23/2003CN2546966Y Environment protection energy-saving AC electronic door bell and lighting apparatus
04/23/2003CN1412817A Lamp bulb type electrodeless discharge lamp and electrodeless discharge lamp ballast
04/23/2003CN1106681C Electrodeless low-voltage discharge lamp
04/22/2003US6552502 Light source device
04/22/2003US6552501 Discharge lamp lighting circuit with protection circuit
04/22/2003US6552500 Electric lights
04/22/2003US6552499 High-pressure gas discharge lamp, and method of manufacturing same
04/22/2003US6552498 Method and circuit for controlling current in a high pressure discharge lamp
04/22/2003US6552497 Light bulb type fluorescent lamp lighting apparatus
04/22/2003US6552494 Fluorescent lamp driver circuit
04/22/2003US6552491 Fluorescent lamp with integral circuitry
04/22/2003US6550935 Illumination device having an inverter and an igniter disposed in a lamp body
04/22/2003CA2288087C Ferroresonant transformer ballast for maintaining the current of gas discharge lamps at a predetermined value
04/22/2003CA2108997C High pressure discharge lamp having overcurrent fuse protection
04/17/2003WO2003032692A2 Dimmable ballast for electrodeless fluorescent lamps
04/17/2003WO2003032691A1 Kit for converting light units employing high intensity discharge lamps from inductive operation to electronic operation
04/17/2003WO2003032362A2 Dielectric barrier discharge lamp and method and circuit for igniting and operating said lamp
04/17/2003WO2003031262A1 Control device for flashlight systems in airports
04/17/2003WO2003001550A3 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
04/17/2003US20030071586 Sequential burst mode activation circuit
04/17/2003US20030071585 Xenon discharge lamp lighting device
04/17/2003US20030071584 Driving apparatus of discharge tube lamp
04/17/2003US20030071583 Self-ballasted electrodeless discharge lamp and electrodeless discharge lamp operating device
04/17/2003US20030071582 Ballast converter with power factor and current crest factor correction
04/17/2003US20030071573 Rechargeable emergency lamp tube
04/17/2003DE19842761C2 Verfahren zum tageslichtabhängigen Dimmen von mehrflammigen Leuchten A method for daylight-dependent dimming of lights multilamp
04/17/2003CA2445601A1 Dielectric barrier discharge lamp, and a method and circuit arrangement for igniting and operating this lamp
04/16/2003EP1293109A4 Electronic ballast circuit for operating a high intensity discharge lamp
04/16/2003CN2545793Y Connect-disconnect type combined electronic ballast
04/16/2003CN2545792Y Electronic ballast with passive power factor correction
04/16/2003CN2545791Y Electronic ballast with passive power factor correction
04/16/2003CN2545790Y Waterproof dampproof, cooking-fume-resistant and energy-saving ballast
04/16/2003CN1411326A Igniting device for discharge lamp
04/16/2003CN1411079A Piezoelectric transformer
04/16/2003CN1411031A Electrodeless discharge lamp using microwave energy
04/16/2003CN1411030A Lamp bulk with reflector and electrodeless discharge lamp using this lamp bulp
04/16/2003CN1411029A Apparatus and method for preventing microwave from leakage
04/16/2003CN1411028A Electrodeless illuminating system
04/15/2003US6548966 Discharge lamp lighting device
04/15/2003US6548965 Electrodeless fluorescent lamp with low wall loading
04/15/2003US6548964 Discharge lamp lighting apparatus and luminaire using the same
04/15/2003US6548963 Circuit device
04/15/2003US6548948 Energy saving lamp with electronic ballast
04/10/2003WO2003030595A1 Self-oscillating bridge circuit comprising a start circuit
04/10/2003WO2003030594A1 Electronic ballast with constant power
04/10/2003WO2003030593A1 Fluorescent lamp capable of starting with at least one broken filament
04/10/2003WO2003030340A2 Adaptable inverter
04/10/2003US20030067276 Dimmable ballast for electrodeless fluorescent lamps
04/09/2003EP1300935A2 Energy saving power control system
04/09/2003EP1300055A1 Integrated circuit for lamp heating and dimming control
04/09/2003CN2544493Y Electronic transformer for tungsten-halogen lamp
04/09/2003CN2544492Y Miniature series connected double-inductor rectifier fluorescent lamp device
04/09/2003CN2544491Y High-strength electronic ballast for gas discharge lamp
04/09/2003CN1409583A Lamp turn-on device of discharging tube and discharging tube device
04/09/2003CN1409582A DC fluorescent lamp of low harmonic distortion
04/09/2003CN1409552A Gas discharge tube and its driving method
04/09/2003CN1409368A Fluorescent lamp and fluorescent tube without worry of filament breaking
04/09/2003CN1409361A High voltage discharge lamp and high voltage discharge lamp system using said discharge lamp
04/09/2003CN1409169A 光源装置 The light source device
04/08/2003US6546346 Method for determining the resonance frequency of an electric resonant circuit
04/08/2003US6546205 Charging circuit and accompanying equipment
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