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)
12/2004
12/09/2004	US20040245939 Fluorescent-lamp driving apparatus adopting high-frequency inverter driving method, and compact self-ballasted fluorescent lamp equipped with such fluorescent-lamp driving apparatus
12/09/2004	US20040245938 Drive circuit for operating at least one lamp in an associated load circuit
12/09/2004	US20040245934 Method and apparatus for lighting a discharge lamp
12/09/2004	US20040245931 High lamp-power lighting system and fluorescent lamp
12/09/2004	DE10323752A1 Verfahren zum Betreiben einer Lichtanlage Method for operating a lighting system
12/09/2004	DE10323689A1 Steuerbare Lichtanlage mit zweitem Kommunikationsprotokoll und Geräte hierfür Controllable lighting system with a second communication protocol and device therefor
12/09/2004	DE10297317T5 Schnelle Blitzlampen-Entladeschaltung Fast flashlamp discharge circuit
12/08/2004	EP1484947A2 Switch circuit arrangement for driving lamps
12/08/2004	EP1484740A2 Device and method of driving a light source in display devices with improved generation of a reference signal
12/08/2004	EP1483947A1 Electronic circuit and method of supplying energy to a high-pressure gas-discharge lamp
12/08/2004	EP1483946A1 Ballast for a discharge lamp
12/08/2004	EP1483945A1 Ignition circuit for a high pressure discharge lamp
12/08/2004	EP1483944A1 Ballast comprising switched inductance
12/08/2004	CN2662591Y High frequency noise suppression apparatus for protective circuit of discharge lamp tube
12/08/2004	CN2662590Y Electronic ballast for high voltage sodium lamp and metal halide lamp
12/08/2004	CN2662589Y High voltage sodium lamp capacitor ballast
12/08/2004	CN2662588Y Preheating daylight lamp filament ballast
12/08/2004	CN2662587Y Grounding device for electronic ballast
12/08/2004	CN1553762A Wire fixing method and fixer
12/08/2004	CN1553758A Method for improving luminous efficiency of impulse car light
12/08/2004	CN1553757A Flashing light controller and operatnig method thereof
12/08/2004	CN1553756A Controllable flashing light controlling circuit
12/08/2004	CN1553755A Complex cold-cathode tube electronic transformer
12/08/2004	CN1179607C System for operating lamp
12/08/2004	CN1179606C Electronic driver for water treatment system UV bulb
12/08/2004	CN1179477C Piezo inverter
12/07/2004	US6829261 Method for the stabilization of the radiation output of a gas discharge-coupled radiation source in pulsed operation
12/07/2004	US6828803 Strobe charge apparatus
12/07/2004	US6828740 Electrodeless discharge lamp operating apparatus, electrodeless compact self-ballasted fluorescent lamp and discharge lamp operating apparatus
12/07/2004	US6828738 Energy-saving light marking device with low power consumption
12/07/2004	US6828737 Discharge lamp operating circuit with a current regulation circuit and a circuit for detection of the proximity to capacitive operation
12/07/2004	US6828732 Fluorescent lamp end-of-life protection circuit
12/07/2004	CA2160309C Operating circuit for at least one low-pressure discharge lamp, especially for one or more fluorescent lamps, and method of safe operation
12/06/2004	CA2469575A1 Drive circuit for operating at least one lamp in an associated load circuit
12/02/2004	WO2004051829A3 Power supply apparatus, backlight assembly and liquid crystal display apparatus having the same
12/02/2004	US20040240873 Flash device and lens-fitted photo film unit with built-in flash device
12/02/2004	US20040240868 Flash control device, flash control system, master flash device, and remote flash device
12/02/2004	US20040240235 Backlight inverter for liquid crystal display panel with self-protection function
12/02/2004	US20040240234 DC-AC converter, and method for supplying AC power
12/02/2004	US20040240208 Lumen sensing system
12/02/2004	US20040239894 Light souce apparatus and image display apparatus
12/02/2004	US20040239395 Semiconductor chip
12/02/2004	US20040239264 Transformer for cathode tube inverter
12/02/2004	US20040239263 Digital ballast
12/02/2004	US20040239262 Electronic ballast for a discharge lamp
12/02/2004	US20040239260 Lighting device for dielectric barrier discharge lamp
12/02/2004	DE19816965B4 Vorschaltgerät für Leuchtstofflampen Ballast for fluorescent lamps
12/02/2004	DE10297589T5 Vorschaltgerät für Entladungslampe Ballast for discharge lamp
12/01/2004	EP1482357A1 Circuit for a flash device
12/01/2004	EP1138177B1 Modular master-slave power supply controller
12/01/2004	EP1025745B1 Energy saving lighting controller
12/01/2004	CN2660841Y Electric ballast with starting circuit
12/01/2004	CN1552173A Adaptive control for half-bridge universal lamp drivers
12/01/2004	CN1551706A Power supply device, discharge lamp igniting device and lighting device
12/01/2004	CN1551705A Microwave excited ultraviolet lamp system with single electrical interconnection
12/01/2004	CN1551704A Nverter circuit for discharge lamps for multi-lamp lighting and surface light source system
12/01/2004	CN1551382A Piezoelectric transformer, power supply circuit and lighting unit using said piezoelectric transformer
12/01/2004	CN1551381A Piezoelectric transformer, power supply circuit and lighting unit using the same
12/01/2004	CN1550868A Projection display apparatus
12/01/2004	CN1550850A Discharge lamp lighting device and back lighting lamp device
12/01/2004	CN1178559C Ballast for lamp
11/2004
11/30/2004	US6826365 Battery saving flash charger control
11/30/2004	US6826364 Zoom flash and flash photography system
11/30/2004	US6826063 DC voltage converting circuit
11/30/2004	US6825620 Inductively coupled ballast circuit
11/25/2004	WO2004103032A1 Device and method for lighting high-voltage discharge lamp
11/25/2004	WO2004103031A1 Limited open circuit voltage ballast
11/25/2004	WO2004103030A1 Lighting system of series-wound cold cathode startup and triac dimmer gas discharge lamp
11/25/2004	WO2004103026A2 Digital electronic ballast control apparatus and method
11/25/2004	WO2004102517A1 Active matrix type display apparatus
11/25/2004	WO2004102300A1 Energy-saving device for street lighting systems, and associated method
11/25/2004	US20040233663 Backlighting system for display screen
11/25/2004	US20040233001 Digital light ballast oscillator
11/25/2004	US20040232855 Digital electronic ballast control apparatus and method
11/25/2004	US20040232853 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
11/25/2004	US20040232852 Method for operation of a lighting system
11/25/2004	US20040232851 Deriving power for a wireless network component from the power source of a fluorescent light
11/25/2004	US20040232849 Methods and apparatuses for mounting a wireless network component to a fluorescent light
11/25/2004	US20040232845 Inductive coil assembly
11/25/2004	US20040232806 Piezoelectric transformer, power supply circuit and lighting unit using the same
11/25/2004	US20040232775 Lighting system comprised of a unique direct current power supply and a plurality of gas discharge luminaires
11/25/2004	DE202004014617U1 Adapter for lamp operation device e.g. ballast for gas-discharge lamp, includes input-side electrical adapter-input contacts emulating the mimic of contact arrangement of lamp operating device
11/25/2004	DE19705776B4 Schaltungsanordnung zum Betreiben einer Hochdruck-Entladungslampe Circuit arrangement for operating a high pressure discharge lamp
11/24/2004	EP1480498A2 Method for operating a lighting equipment
11/24/2004	EP1480496A2 Controllable lighting equipment with a second communication protocol, and apparatus therefor
11/24/2004	EP1479167A2 Frequency divider
11/24/2004	EP1479096A1 Microwave-excited electrodeless discharge bulb and microwave-excited discharge lamp system
11/24/2004	CN2658979Y Super large power energy-saving lamp holder
11/24/2004	CN1549661A A electric ballast for water treatment system UV bulb
11/24/2004	CN1549049A Electric source controlling apparatus and method for projector
11/23/2004	US6822404 Phase-controlled, multi-electrode type of AC discharge light source
11/23/2004	US6822402 Circuit synchronization apparatus and method
11/23/2004	US6822401 Fault management method for electronic ballast
11/23/2004	US6822400 Processor controlled strobe
11/22/2004	CA2467609A1 Method for operation of a lighting system
11/22/2004	CA2467560A1 Controllable lighting system with a second communication protocol and appliances for this purpose
11/18/2004	WO2004100620A1 High intensity discharge lamp control
11/18/2004	WO2004032179A3 Light source
11/18/2004	US20040228153 Soft-switching techniques for power inverter legs
11/18/2004	US20040227471 Hybrid ballast control circuit in a simplified package

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