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)
11/2000
11/28/2000US6153987 Lighting circuit for discharge lamp
11/28/2000US6153984 Dimmable lighting system for a plurality of gas discharge lamps
11/28/2000US6153983 Full wave electronic starter
11/28/2000US6153981 Strobing light control adapter
11/28/2000US6153962 Piezoelectric transformer inverter
11/28/2000CA2038221C Ballast circuit with improved transfer functions
11/27/2000CA2273056A1 Portable jaffna solar lamp
11/23/2000WO2000070921A1 Ballast for at least one gas discharge lamp and method for operating such a ballast
11/23/2000WO2000070920A1 An electronic ballast circuit
11/23/2000WO2000070919A1 Circuit arrangement
11/23/2000WO2000070918A1 Light source
11/23/2000DE19923265A1 Schaltungsanordnung zur Zündung und zum Betrieb von Hochdrucklampen A circuit arrangement for igniting and operating high-pressure lamps
11/23/2000DE19923263A1 Schaltungsanordnung zum Zünden einer Lampe A circuit arrangement for igniting a lamp
11/23/2000DE19923237A1 Schaltungsanordnung, zugeordnetes elektrisches System sowie Entladungslampe mit derartiger Schaltungsanordnung und Verfahren zu ihrem Betrieb Circuitry associated electrical system and discharge lamp with such circuitry and method for its operation
11/23/2000CA2371527A1 An electronic ballast circuit
11/23/2000CA2337062A1 Ballast for at least one gas discharge lamp, and a method for operating such a ballast
11/22/2000EP1054581A2 A device for powering, controlling and commanding electric light sources
11/22/2000EP1054580A1 Circuit for starting and operating high pressure lamps
11/22/2000EP1054579A2 Circuit, associated electric system as well as discharge lamp with such a circuit, and process for operating such a discharge lamp
11/22/2000EP1054578A1 Discharge lamps in series connection
11/22/2000CN2407550Y Synchronous observator for steady/unsteady periodical movements
11/22/2000CN2407345Y High performance hollow cathode electric source for background calibration of self absorption effect
11/22/2000CN1274515A 镇流器 Ballast
11/22/2000CN1274514A Preconditioner
11/22/2000CN1058833C Filament power supply circuit for vacuum fluorescent display tube
11/21/2000US6151529 Motion sensing system with adaptive timing for controlling lighting fixtures
11/21/2000US6151232 Power supply circuit utilizing a piezoelectric transformer that supplies power to a load whose impedance varies depending on temperature
11/21/2000US6150775 Contact actuated lamp
11/21/2000US6150773 Model and method for high-frequency electronic ballast design
11/21/2000US6150772 Gas discharge lamp controller
11/21/2000US6150770 Flash apparatus
11/21/2000US6150769 Gas discharge lamp ballast with tapless feedback circuit
11/21/2000US6150768 Ballast with active power factor correction
11/21/2000US6150761 Discharge lamp ballast circuit with charge pump igniter
11/21/2000CA2297415A1 System for and method of operating a discharge lamp
11/20/2000CA2308915A1 Circuit arrangement, an assigned electrical system and a discharge lamp with such a circuit arrangement, and a method for operating it
11/20/2000CA2308912A1 Circuit arrangement for starting and for operating high-pressure lamps
11/16/2000WO2000069227A1 Bi-level output electronic high intensity discharge (hid) ballast system
11/16/2000WO2000069226A1 Circuit arrangement
11/16/2000WO2000069225A1 Cold-cathode lamp, in particular, a table or display window lamp
11/16/2000WO2000069224A1 Ignitor for high intensity discharge lamps
11/16/2000WO2000069223A1 Gas discharge tube changeable color display and digital controller system
11/16/2000WO2000069044A1 Overvoltage protection circuit
11/16/2000DE19922039A1 Fluorescent lamp choke for a gas discharge lamp and method for operating it includes a DC-AC converter fed by a DC source having a bridge circuit with first and second controllable switches fitted parallel to the DC source.
11/16/2000DE10013149A1 Ceramic piezoelectric transducer with improved mechanical properties has compression mechanism that applies compression to input and output stages in longitudinal direction
11/15/2000EP1052447A2 Vehicle discharge lighting unit
11/15/2000CN2406448Y Electronic ballast for fluorescent lamp
11/15/2000CN2406447Y 双金属软启动器 Bimetallic soft starter
11/15/2000CN1273369A Optical scanner able to control powder supply of cold-cathode tube according to its use state
11/14/2000US6147463 Electronic ballast for the operation of at least one gas discharge lamp
11/14/2000US6147462 Ballast
11/14/2000US6147461 Operating apparatus of discharge lamp
11/14/2000US6147460 Flash apparatus
11/14/2000US6147459 Voltage-controlled ballast for gas-discharge lamps
11/14/2000US6147455 Gas discharge lamp ballast circuit with electronic starter
11/14/2000CA2024440C Dimmer control circuit
11/09/2000WO2000067534A1 Circuit arrangement
11/09/2000WO2000067533A1 Dielectric barrier discharge lamp light source
11/09/2000WO2000067532A1 Ballast having a resonant feedback circuit for linear diode operation
11/09/2000WO2000067296A1 Discharge lamp and electronic flash device using the same
11/09/2000WO2000041464A3 Circuit arrangement
11/09/2000WO2000015012A3 Circuit arrangement
11/09/2000DE19920030A1 Elektronisches Vorschaltgerät Electronic ballast
11/08/2000EP1051060A1 Electronic starting device for fluorescent discharge lamps and the like,having improved characteristics
11/08/2000EP1050954A1 Circuit for driving piezoelectric transformer
11/08/2000EP1050897A2 Electrodeless discharge lamp
11/08/2000EP1050198A1 A method and device for operating electronic ballasts for high intensity discharge (hid) lamps
11/08/2000EP1050197A1 Electronic ballast having an oscillator shutdown circuit for fluorescent tubes or lamps
11/08/2000EP1050196A1 Resonant converter circuit
11/08/2000CN2405397Y Remote controller for flashing lamp in photo taking room
11/08/2000CN2405396Y Large power, full automatic and energy-saving emergency lamy
11/08/2000CN2405395Y Voltage-double type ballast for fluorescent lamp
11/08/2000CN2405394Y Ballast for eliminating undesirable light for fluorescent lamp
11/08/2000CN2405393Y 数字式镇流器 Digital ballasts
11/08/2000CN2405392Y Conjugated inductance ballast for double gas discharge lamp
11/08/2000CN1273018A Circuit arrangement
11/08/2000CN1272681A Electrodeless discharge lamp
11/08/2000CN1058364C Gas discharge light source brightness control and information sending apparatus and method
11/07/2000US6144539 Arrangement for protecting low-voltage control circuitry from externally applied high voltages, and dimming ballast employing such an arrangement
11/07/2000US6144445 Electronic ballast products and systems
11/07/2000US6144175 Low-voltage ballast-free energy-efficient ultraviolet material treatment and purification system and method
11/07/2000US6144174 Control device for low-pressure fluorescent lamp
11/07/2000US6144173 Single switch electronic ballast
11/07/2000US6144172 Method and driving circuit for HID lamp electronic ballast
11/07/2000US6144171 Ignitor for high intensity discharge lamps
11/07/2000US6144170 System for providing electrical power to several gas discharge tubes
11/07/2000US6144169 Triac dimmable electronic ballast with single stage feedback power factor inverter
11/07/2000US6144168 Circuit arrangement for operation of a high-pressure gas discharge lamp on alternating current
11/07/2000US6144167 Circuit arrangement
11/07/2000US6144139 Piezoelectric transformer inverter
11/02/2000WO2000065886A1 Electronic ballast
11/02/2000WO2000065885A1 Feeding device for discharge lamp
11/02/2000WO2000065884A1 Frequency controlled ballast with loosely coupled transformer with gap shunt and method therefor
11/02/2000EP1049361A2 Discharge lamp lighting apparatus
11/02/2000EP1048190A1 Electronic lamp ballast
11/01/2000CN2404298Y Electric circuit for controlling brightness of high-voltage discharge lamp
10/2000
10/31/2000US6141131 Methods and apparatuses for high-speed control of lamp intensities and/or wavelengths and for high-speed optical data transmission
10/31/2000US6140779 Incrementally preheating and lighting system for a discharge lamp
10/31/2000US6140778 Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like
10/31/2000US6140777 Preconditioner having a digital power factor controller
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