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)
10/1999
10/13/1999EP0949851A1 Ballast for low-pressure discharge lamp
10/13/1999EP0948878A1 Parallel-storage series-drive electronic ballast
10/13/1999EP0948773A1 Apparatus for providing a nonlinear response
10/13/1999EP0799521B1 Power supply circuit
10/13/1999EP0525133B1 Fail-safe uninterruptible lighting system
10/13/1999CN2343738Y Distributor for CLL fluorescent lamp
10/13/1999CN2343737Y Electronic light regulator
10/13/1999CN1231574A Working circuit for discharging lamp with covertible working state
10/13/1999CN1231573A Electric capacitor ballast
10/12/1999US5966552 Flash circuit
10/12/1999US5965989 Transformer primary side lamp current sense circuit
10/12/1999US5965988 Discharge lamp with galvanic and dielectric electrodes and method
10/12/1999US5965986 Arrangement for detecting the ignition of a high-pressure gas discharge lamp
10/12/1999US5965985 For a gas discharge lamp
10/12/1999CA2097463C Variable control, current sensing ballast
10/07/1999WO1999051066A1 Electronic ballast for high intensity discharge lamp
10/07/1999DE19814244A1 Base mounting for gas discharge lamp, particularly for compact fluorescent lamps
10/07/1999CA2267486A1 Operating circuit for discharge lamps with switchable operating states
10/06/1999EP0948246A2 Ballast for a discharge lamp
10/06/1999EP0948245A2 Dimmable ballast with complementary converter switches
10/06/1999EP0948244A2 A self ballasted fluorescent lamp and lighting fixture
10/06/1999EP0948243A2 Discharge lamp lighting system with overcurrent protection for an inverter switch or switches
10/06/1999CN2342543Y 镇流器 Ballast
10/06/1999CN1231111A Circuit arrangement
10/06/1999CN1230871A Ballast for discharge lamp
10/05/1999US5962990 Control unit for rapidly starting the illumination of a high-pressure gas-discharge lamp
10/05/1999US5962989 For an installation having several zones and a power source
10/05/1999US5962988 Multi-voltage ballast and dimming circuits for a lamp drive voltage transformation and ballasting system
10/05/1999US5962987 Operating circuit for an electrodeless low-pressure discharge lamp
10/05/1999US5962986 Solid state RF light driver for electrodeless lighting
10/05/1999US5962985 DC/AC converter with improved starter circuit
10/05/1999US5962984 High intensity lighting circuit
10/05/1999US5962981 Discharge lamp lighting device
10/05/1999US5962979 Capacitor network
10/05/1999US5962954 Piezo-electric transformer
10/05/1999US5961204 Fluorescent lamp with globe activated dimmer switch
09/1999
09/30/1999WO1999049704A1 Multiload ballast for ultraviolet fluorescent lamps
09/30/1999WO1999049703A1 Electronic starter in a fluorescent lamp apparatus
09/30/1999WO1999049560A1 Power supply
09/30/1999DE19813292A1 Arrangement for high voltage-proof insulation of at least one component
09/29/1999EP0946081A1 Device for operating a discharge lamp in a vehicle headlamp
09/29/1999CN2341342Y Low voltage controller for neon
09/29/1999CN1230091A Inductance electronic ballast
09/29/1999CN1045361C Efficient energy-saving d. c. fluorescent lamp
09/28/1999US5959521 High-voltage transformer and a vehicle-lamp lighting-on device using the same
09/28/1999US5959412 Inverter circuit for discharge tube having impedance matching circuit
09/28/1999US5959411 One pin IC control circuit for a discharge lamp
09/28/1999US5959410 Charge pump power factor correction circuit for power supply for gas discharge lamp
09/28/1999US5959408 Symmetry control circuit for pre-heating in electronic ballasts
09/28/1999US5959407 Vehicle lighting drive apparatus
09/23/1999WO1999048341A1 Low-voltage ballast-free energy-efficient fluorescent landscape lighting system and method
09/23/1999WO1999048133A1 Unit comprising a short-arc discharge lamp with a starting antenna
09/23/1999DE19909630A1 Device for generating light of variable colour temperature and brightness e.g. for bank strong rooms, office suites etc
09/23/1999DE19829600A1 Procedure and ballast for driving high pressure AC discharge lamps
09/23/1999DE19812025A1 Procedure for operating electrical illumination installation with gas discharge lamp(s) and ballast apparatus(es)
09/22/1999EP0944295A2 Safety device for lighting systems formed by a plurality of lamps connected in series
09/22/1999EP0944294A2 Operating apparatus of discharge lamp
09/22/1999EP0943154A1 Discharge lamp, comprising secondary side of piezotransformer as electrode
09/22/1999EP0943123A1 Modular high power modulator
09/22/1999EP0852893B1 Control device for the fast striking of a high-pressure gas discharge lamp
09/22/1999CN2340145Y Power-supply control apparatus for cold-cathode fluorescent lamp tube
09/22/1999CN2340070Y Neon lamp transformer packaged with ceramic body
09/22/1999CN1229569A Pump support choke
09/22/1999CN1229568A Discharge lamp lighting device and illumination device
09/22/1999CN1229521A Fluorescent lamp. lamp-bulb type fluorescent lamp and lighting appliance
09/22/1999CN1045241C Output light stabilizer for fluorescent lamp
09/21/1999US5956535 Flash device
09/21/1999US5956531 Camera and external flash device
09/21/1999US5955847 Method for dimming a fluorescent lamp
09/21/1999US5955843 Relay circuit for providing power from a normal or emergency power supply to ignite and drive a high intensity discharge lamp
09/21/1999US5955841 Ballast circuit for fluorescent lamp
09/16/1999WO1999046963A1 Light source using dielectric barrier discharge lamp, and power supply
09/16/1999WO1999046843A1 Bit-weighted regulator
09/16/1999DE19804974C1 Pulse igniter for gas discharge lamp with AC supply e.g. for automobile
09/15/1999EP0942634A2 HID head-lamp device for a vehicle
09/15/1999EP0942457A2 Electrodeless lamp
09/15/1999EP0942454A2 Horizontal HID vehicle headlamp with magnetic deflection
09/15/1999EP0941639A1 Circuit arrangement
09/15/1999EP0941638A1 Inverter circuits
09/15/1999EP0941637A1 Controller for operating a high pressure gas discharge lamp
09/15/1999EP0941636A1 Pump support choke
09/15/1999EP0941481A1 Measuring instrument for a loaded dc/dc converter
09/15/1999CN1228912A Universal high intensity discharge (HID) electronic starter
09/15/1999CN1228671A Fully intergrated ballast IC
09/14/1999US5953545 Exposure controlling device for camera
09/14/1999US5952832 Diagnostic circuit and method for predicting fluorescent lamp failure by monitoring filament currents
09/14/1999US5952794 Method of sampling an electrical lamp parameter for detecting arc instabilities
09/14/1999US5952793 Discharge lamp igniting apparatus including feedback control
09/14/1999US5952792 Compact electrodeless fluorescent A-line lamp
09/14/1999US5952791 Apparatus for detecting abnormal states in a discharge tube circuit and information processing system
09/14/1999US5952790 For a gas discharge lamp
09/13/1999CA2259888A1 Horizontal hid vehicle headlamp with magnetic deflection
09/10/1999WO1999045750A1 Triac dimmable ballast
09/09/1999DE19808637A1 Gleichspannungs-/Gleichspannungswandler mit einem Transformator und einer Drossel DC / DC converter having a transformer and a choke
09/08/1999EP0940842A2 Coaxial applicators for electrodeless high intensity discharge lamps
09/08/1999EP0940841A2 Alternating current HID lamp with magnetic deflection
09/08/1999EP0940064A1 Magnetic ballast adapter circuit
09/08/1999EP0940063A1 Lamp driver circuit and method
09/08/1999EP0940062A1 Method and apparatus for powering an electrodeless lamp with reduced radio frequency interference
09/08/1999EP0940061A1 Distributed network control of a dimmable fluorescent lighting system
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