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)
04/2000
04/20/2000WO2000022891A1 Electronic system for generating and controlling light effects on projectors
04/20/2000WO2000022889A2 Hid ballast circuit with arc stabilization
04/20/2000WO2000022888A1 Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method
04/20/2000WO2000022887A1 Low-voltage ballast-free energy-efficient ultraviolet material treatment and purification system and method
04/20/2000WO2000022651A1 Energy saving lamp with electronic ballast
04/20/2000CA2347542A1 Hid ballast circuit with arc stabilization
04/20/2000CA2346938A1 Ballast power control circuit
04/20/2000CA2346677A1 Low-voltage ballast-free energy-efficient ultraviolet material treatment and purification system and method
04/20/2000CA2345969A1 Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method
04/19/2000CN2375053Y Energy saving and effective high voltage sodium lamp electronic ballast
04/19/2000CN1051667C Impedance matching and filter network for use with electrodeless discharge lamp
04/19/2000CA2282083A1 Control system for thermal protection of high wattage lighting
04/18/2000US6052300 DC-AC converter circuit using resonating multi-layer piezoelectric transformer
04/18/2000US6051940 Safety control circuit for detecting the removal of lamps from a ballast and reducing the through-lamp leakage currents
04/18/2000US6051939 Method and apparatus for controlling the power of a high-pressure gas-discharge lamp
04/18/2000US6051938 Dimmable ballast with active power feedback control
04/18/2000US6051936 Electronic lamp ballast with power feedback through line inductor
04/18/2000US6051934 Gas discharge lamp ballast circuit with high speed gate drive circuitry
04/18/2000US6051933 Bipolar power device having an integrated thermal protection for driving electric loads
04/18/2000US6051922 Electrodeless low-pressure mercury vapour discharge lamp employing a high frequency magnetic field having a layer of aluminum oxide particles
04/18/2000CA2078051C Apparatus for efficient remote ballasting of gaseous discharge lamps
04/18/2000CA2032058C Circuit for dimming gas discharge lamps without introducing striations
04/15/2000CA2251434A1 Externally mountable discharge lamp ignition circuit having visual diagnostic indicator
04/13/2000WO2000021342A1 Circuit arrangement for energy-saving operation of a fluorescent tube
04/13/2000WO2000021341A1 Circuit arrangement
04/13/2000WO2000021340A1 Fluorescent lamp excitation circuit having a multi-layer piezoelectric acoustic transformer and methods for using the same
04/13/2000DE19913942C1 Gas discharge lamp socket incorporating ignition device has carrier for components of ignition device with HV and LV components mounted on its opposite sides
04/13/2000DE19846146A1 Electronic choke for operating low voltage fluorescent tubes consists of three conventional electronic components making the need for separate capacitors, starters and conventional chokes superfluous in fluorescent tubes.
04/12/2000EP0993237A2 Light irradiation method
04/12/2000EP0993021A1 Neon discharge lamp for generating amber light
04/12/2000EP0992179A1 Power supply for hybrid illumination system
04/12/2000EP0992113A1 Half bridge circuit drive without collector bias current peak
04/12/2000EP0992104A1 Low voltage illumination system
04/12/2000CN2373967Y Rectifying direct power supply type high power factor electronic ballast
04/12/2000CN2373966Y Mutli-function multi-holding fluorescent lamp ballast
04/12/2000CN1250348A Piezoelectric transformer inverter
04/12/2000CN1051433C Color mixing method for variable color lighting and variable color luminatire for use with the method
04/12/2000CN1051432C Two-purpose solid fluorescent lamp trigger
04/11/2000US6049472 Power factor improving circuit
04/11/2000US6049179 High-pressure discharge lamp lighting apparatus
04/11/2000US6049178 Circuit for controlling operation of an emergency exit lamp
04/11/2000US6049177 Single fluorescent lamp ballast for simultaneous operation of different lamps in series or parallel
04/11/2000US6049172 Ignition apparatus for a discharge lamp
04/11/2000US6049163 Discharge lamp unit with RF shield primary coil
04/06/2000WO2000019780A1 Transforming device for cold cathode lighting tubes charged with neon or argon or mixed gases
04/06/2000WO2000019779A1 Circuit for controlling current to lamp and method of operation
04/06/2000WO2000019487A1 Discharge lamp for dielectrically impeded discharges with improved electrode configuration
04/06/2000WO2000019485A1 Dimmable discharge lamp for dielectrically impeded discharges
04/06/2000WO2000002423A3 Power supply for gas discharge lamp
04/06/2000DE19844720A1 Dimmbare Entladungslampe für dielektrisch behinderte Entladungen Dimmable discharge lamp for dielectric barrier discharges
04/05/2000EP0991305A1 Operation circuit in particular for discharge lamps using discrete time definition values to control operating state switching
04/05/2000EP0990374A1 Starter circuit
04/05/2000EP0990248A1 Unit comprising a short-arc discharge lamp with a starting antenna
04/05/2000CN2372864Y Inverter for fluorescent lamp
04/05/2000CN1249896A Parallel-storage series-drive electronic ballast
04/05/2000CN1249895A Circuit arrangement
04/05/2000CN1249656A 一种电子镇流器 An electronic ballast
04/05/2000CN1249655A Piezoelectric transformer inverter
04/05/2000CN1249654A Piezoelectric transformer inverter
04/04/2000US6046551 Device for controlling lighting of discharge lamp and H-bridge circuit for use in such a device
04/04/2000US6046549 Energy saving lighting controller
04/04/2000US6046548 Method and apparatus for operating discharge lamp
04/04/2000US6046545 Light source apparatus using coaxial waveguide
03/2000
03/30/2000WO2000018197A1 Circuit for operating gas discharge lamps
03/30/2000WO2000018196A1 Circuit arrangement
03/30/2000WO2000018195A1 Discharge lamp lighting device
03/30/2000WO2000018194A1 Lighting device
03/30/2000WO1999067977A3 Circuit arrangement
03/30/2000DE19916878A1 Schaltungsanordnung zum Betreiben von Gasentladungslampen Circuit arrangement for operating gas discharge lamps,
03/30/2000DE19844293A1 Beleuchtungseinrichtung Lighting device
03/29/2000EP0989787A2 Process and circuit for controlling the light intensity and the behaviour of gas discharge lamps
03/29/2000EP0989786A2 Process and circuit for controlling the light intensity and the behaviour of gas discharge lamps
03/29/2000EP0989785A2 Circuit improvement for low pressure discharge lamp
03/29/2000EP0989569A2 Inductive component with a bar core
03/29/2000EP0988639A4 Non-rotating electrodeless lamp containing molecular fill
03/29/2000EP0988639A2 Non-rotating electrodeless lamp containing molecular fill
03/29/2000CN2371763Y Electronic ballast for high-voltage Na lamp
03/29/2000CN2371762Y Ballast for fluorescent lamp
03/29/2000CN2371761Y Capacitive ballast
03/29/2000CN2371760Y Electronic ballast with abnormal state protection function
03/29/2000CN2371759Y High-voltage Na lamp electronic ballast
03/29/2000CN2371758Y Efficient energy-saving electronic ballast
03/29/2000CN2371757Y Protective electronic ballast
03/29/2000CN1249064A Illumination unit and liquid crystal display device
03/29/2000CN1248777A 镇流器 Ballast
03/29/2000CA2284029A1 Operation circuit in particular for discharge lamps using discrete time definition values to control operation state switching
03/28/2000US6044227 Lens-fitted photo film unit and electronic flash device for use therewith
03/28/2000US6044003 Piezoelectric transformer-inverter
03/28/2000US6043615 Flashing and dimming fluorescent lamps for a gaming device
03/28/2000US6043614 Alternating current hid lamp with magnetic deflection
03/28/2000US6043613 Starting system for electrodeless metal halide discharge lamps
03/28/2000US6043612 Electronic ballast with automatic restarting
03/28/2000US6043611 Dimmable compact fluorescent lamp
03/28/2000US6043606 Discharge lamp device having a preheating electrode circuit
03/28/2000CA2273811A1 Neon discharge lamp for generating amber light
03/24/2000CA2282879A1 Ballast for fluorescent lamp
03/23/2000WO2000016594A1 Ballast circuit for high intensity discharge lamps
03/23/2000DE19945467A1 Blinkschaltung und Steuerung für Leuchtstofflampen Blink and control circuit for fluorescent lamps
03/23/2000DE19843415A1 Induktives Bauelement mit einem Stabkern Inductive component with a rod core
03/23/2000DE19842761A1 Daylight-dependent dimming of multiple element lights involves achieving brightness control for each sub-region by dimming single lamp, whereby other lamps are either fully on or off
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