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)
12/2001
12/06/2001	WO2001093379A1 Switching power supply for discharge lamp and method for powering a lamp
12/05/2001	EP0870318B1 Glowswitch starter
12/05/2001	EP0847681B1 Striking circuit for a high-pressure gas discharge lamp
12/05/2001	EP0781500B1 Circuit arrangement
12/05/2001	CN2464039Y Fluorescent lamp electronic ballast with exception state protection
12/05/2001	CN1325609A Electronic ballast for a discharge lamp comprising dielectrically impeded discharges
12/05/2001	CN1325608A Electronic ballast for a discharge lamp comprising dielectrically impeded discharges
12/05/2001	CN1325260A Operation of stable-gas discharging lamp
12/04/2001	US6326740 High frequency electronic ballast for multiple lamp independent operation
12/04/2001	US6326739 Wedding ring shaped excitation coil
12/04/2001	US6326738 Two wire light for electronic displays
12/04/2001	US6326737 Current fed parallel resonant ballast
12/04/2001	US6326733 Electronic circuit to initiate and sustain current conduction in gaseous discharge lamps and method
11/2001
11/29/2001	US20010045804 Electric-discharge lamp control apparatus and electric-discharge lamp control method
11/29/2001	US20010045802 Circuit for flashing fluorescent lamps
11/28/2001	EP1157594A1 Ballast
11/28/2001	EP1157593A1 High power electronic ballast with an integrated magnetic transformer
11/28/2001	EP1157592A1 Induction lamp system and induction lamp
11/28/2001	EP1157591A1 Hid ballast with hot restart circuit
11/28/2001	EP1157590A1 A ballast scheme for operating multiple lamps
11/28/2001	EP1157563A1 Projection system and control method therefor
11/28/2001	CN2462638Y Fluorescent lamp electronic ballst with abnormal state protection
11/28/2001	CN2462637Y Halogen lamp electronic transformer haivng structure improved
11/28/2001	CN2462636Y High strength discharge lamp electronic ballast
11/27/2001	US6324078 Power source device
11/27/2001	US6323627 D.C.-d.c. converter with a transformer and a reactance coil
11/27/2001	US6323605 Gas discharge tube changeable color display and digital controller system
11/27/2001	US6323604 Circuit arrangement, an assigned electrical system and a discharge lamp with such a circuit arrangement, and a method for operating it
11/27/2001	US6323603 Resonant flyback ignitor circuit for a gas discharge lamp control circuit
11/27/2001	US6323602 Combination equalizing transformer and ballast choke
11/27/2001	US6323600 Process for generating voltage pulse sequences and circuit assembly therefor
11/27/2001	CA2076940C Fluorescent lamp operating circuit, particularly for a compact fluorescent lamp
11/22/2001	WO2001089271A1 Integrated circuit for lamp heating and dimming control
11/22/2001	US20010043810 Flash Device
11/21/2001	EP1155598A1 Digital lamp ballast
11/21/2001	EP1155492A1 Converter with resonant circuit elements
11/21/2001	EP0931437B1 Method and device for producing series of impulse voltages to operate dielectric barrier discharge lamps and circuit pertaining thereto
11/21/2001	CN2461237Y Electronic starter
11/21/2001	CN2461008Y Seismic alarm emergency light
11/21/2001	CN1323503A Electronic system for generating and controlling light effects on projectors
11/21/2001	CN1323055A Light-emitting device for fluorescent lamp
11/21/2001	CN1075337C Circuit arrangement containing first and second circuit branches connected to the lamp
11/21/2001	CN1075336C Circuit arrangement
11/20/2001	US6320357 Circuit arrangement
11/20/2001	US6320331 Light source apparatus using electric lamp as light source
11/20/2001	US6320329 Modular high frequency ballast architecture
11/20/2001	US6320328 Method and apparatus for retrofitting gas discharge lamp ballast for use with gas discharge lamp having different power rating
11/20/2001	US6320316 Apparatus for coupling power into a body of gas
11/20/2001	US6320308 Optimizing the generation of visible light produced by mercury arc vapor and fluorescent lamps
11/20/2001	US6320301 Piezoelectric-transformer inverter
11/20/2001	US6320133 Power distribution system
11/15/2001	WO2001087020A1 Universal ballast control circuit
11/15/2001	WO2001087019A1 Starting aid for fluorescent lamps
11/15/2001	US20010040805 System for individual and remote control of spaced lighting fixtures
11/15/2001	DE10023327A1 Drive circuit for motor-vehicle gas-discharge lamp, has charge capacitor charged to approximately the sum of the secondary voltages at the two secondary coils
11/14/2001	EP1153530A1 Electronic ballasts with current and voltage feedback paths
11/14/2001	EP0819317B1 Apparatus for producing light by exciting an electrodeless lamp with microwave energy and apparatus for producing high intensity visible light
11/14/2001	EP0804864B1 Circuit arrangement
11/14/2001	CN2459844Y Novel electronic ballast
11/14/2001	CN2459843Y Filament voltage dropping device for thin type fluorescent lamp tube
11/14/2001	CN1322457A Circuit arrangement to operate high voltage discharge lamps
11/14/2001	CN1322456A Modular master-slave power supply controller
11/13/2001	US6317566 Electronic flash device for photographic camera
11/13/2001	US6317347 Voltage feed push-pull resonant inverter for LCD backlighting
11/13/2001	US6316923 Power control circuits for luminaires
11/13/2001	US6316888 Ballast for at least one gas discharge lamp and method for operating such a ballast
11/13/2001	US6316887 Multiple ignition high intensity discharge ballast control circuit
11/13/2001	US6316886 Method and device for controlling the operational performance of gas discharge lamps
11/13/2001	US6316885 Single ballast for powering high intensity discharge lamps
11/13/2001	US6316883 Power-factor correction circuit of electronic ballast for fluorescent lamps
11/13/2001	US6316882 Electronic ballast having a stable reference voltage and a multifunction input for soft dimming and ON/OFF control
11/13/2001	US6316881 Method and apparatus for controlling a discharge lamp in a backlighted display
11/08/2001	WO2001084891A1 Lamp ignition with automatic compensation for parasitic capacitance
11/08/2001	WO2001084890A1 Ignition circuitry
11/08/2001	WO2001031980A8 Electronic ballast and method of manufacturing same
11/08/2001	US20010038305 Inverter circuit
11/08/2001	US20010038267 High-pressure discharge lamp, and manufacturing method, lighting method, and lighting device for the same
11/08/2001	DE10120273A1 Power supply unit for discharge lamp e.g. xenon lamp, uses error signal generator for generating DC power error signal as measure for difference between DC power signal and given DC power reference signal
11/08/2001	DE10021537A1 Verfahren und Vorrichtung zum Betreiben einer Gasentladungslampe Method and device for operating a gas discharge lamp
11/07/2001	EP1152645A1 Method and device to control a gas discharge lamp circuit
11/07/2001	EP1152644A1 Reduced voltage and time delay to eliminate filament hot shock
11/07/2001	EP1152512A1 High voltage discharge lamp device
11/07/2001	EP1151643A1 An electronically controlled, power saving, power supply system for fluorescent tubes
11/07/2001	EP1151642A1 Improvements to electronic ballasts
11/07/2001	EP1151641A1 Lighting system with a high intensity discharge lamp
11/07/2001	EP0847680B1 Process and circuit for striking a high-pressure gas discharge lamp
11/07/2001	CN1321406A Discharge lamp lighting device
11/07/2001	CN1321235A Illumination device
11/07/2001	CN1321058A Supply unit for lamp
11/06/2001	US6313587 High frequency inductive lamp and power oscillator
11/06/2001	US6313586 Control apparatus capable of improving a rise time characteristic of a light source
11/06/2001	US6313585 Method for dimming a fluorescent lamp arranged in the secondary circuit of a transformer and arrangement to implement said method
11/06/2001	US6313581 Electrical discharge tube having trigger wires
11/01/2001	WO2001082658A1 Lamp start-up sequence with interruption period
11/01/2001	US20010036096 High-efficiency adaptive DC/AC converter
11/01/2001	US20010036090 Resonant converter comprising a control circuit
11/01/2001	US20010035721 Energy converter comprising a control circuit
11/01/2001	US20010035698 Method and unit for driving piezoelectric transformer used for controlling luminance of cold-cathode tube
11/01/2001	CA2387090A1 Electroluminescent lighting device
10/2001
10/31/2001	EP1150336A2 High-pressure discharge lamp, and manufacturing method, lighting method, and lighting device for the same

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