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)
07/1996
07/24/1996CN1032396C Gas discharge space for compact lamp
07/24/1996CN1032393C Power supply and control unit for light system
07/23/1996US5539284 Fluorescent lamp ballast dimming control cicuit
07/23/1996US5539283 Discharge light source with reduced magnetic interference
07/23/1996US5539281 Externally dimmable electronic ballast
07/23/1996US5539183 Vertically fitted portable electric furnace
07/18/1996WO1996022007A1 Electronic starter for fluorescent lamp
07/18/1996WO1996022006A1 Starter circuit for discharge lamps
07/18/1996WO1996010898A3 Improvements in ballast circuit for fluorescent lamps
07/17/1996EP0722263A1 Preheating circuit for the cathodes of a fluorescent lamp
07/17/1996EP0721730A1 A high intensity discharge lamp ballast
07/16/1996US5537010 Voltage-comparator, solid-state, current-switch starter for fluorescent lamp
07/16/1996US5537009 Transition of a substance to a new state through use of energizer such as RF energy
07/11/1996WO1996021337A1 A lighting system with a device for reducing system wattage
07/10/1996EP0721082A2 Flashlight
07/10/1996CN1126420A 4-40 watt glow-starting inductance ballast fluorescent lamp
07/09/1996US5534755 System for providing a constant current to a fluorescent tube
07/09/1996US5534754 Apparatus for supplying electrical power to an arc lamp including resonant circuit
07/09/1996US5534753 High-pressure discharge lamp igniting circuit in which the voltage-raising network includes inductors
07/09/1996CA2089896C Control unit for controlling a strobe light or the like
07/04/1996WO1996020578A2 Method for igniting and operating a high-pressure discharge lamp and a circuit for performing the method
07/04/1996WO1996020535A1 Lamp oscillator for atomic frequency standards
07/04/1996WO1996020527A1 Power supply circuit
07/04/1996CA2184266A1 Method for igniting and operating a high-pressure discharge lamp and a circuit for performing the method
07/03/1996CN2230496Y Combined fluorescent lamp ballast
07/02/1996US5532555 Electronic flash apparatus using gate controlled switching device directly driven by CPU
07/02/1996US5532528 Converter including direct current detection
06/1996
06/27/1996WO1996019831A2 Circuit arrangement, and junction field effect transistor suitable for use in such a circuit arrangement
06/27/1996DE4446532A1 Stromversorgungsschaltung Power supply circuit
06/26/1996EP0719076A2 Method for deflecting the arc of an electrodeless HID lamp
06/26/1996CN1125380A Variable colour neon lamp
06/25/1996US5530321 Power supply for a gas discharge lamp
06/25/1996US5530319 Power supply circuit for a discharge lamp and use of and method of operating the same
06/20/1996WO1996019095A2 Fluorescent lamps starter and supply electronic device
06/20/1996WO1996012338A3 Ballast
06/19/1996EP0717584A1 Lighting device having a light-sensitive control element
06/19/1996EP0716801A1 Single touch flash charger control
06/19/1996CN1124911A Ballast containing protection circuit for detecting rectification of arc discharge lamp
06/19/1996CN1124871A Coil apparatus
06/18/1996US5528484 Power supply
06/18/1996US5528117 Electronic lamp ballast with driving frequency between load resonant frequencies
06/18/1996US5528111 Ballast circuit for powering gas discharge lamp
06/18/1996US5528110 For reducing the voltage applied from an input to a load in ac power system
06/13/1996WO1996018281A2 Circuit arrangement for alternatingly establishing and extinguishing of a discharge in a plurality of discharge paths
06/12/1996EP0715779A1 Circuit arrangement
06/12/1996CN1124560A Dimming circuit for powering gas discharge lamps
06/11/1996US5525872 Discharge lamp operating circuit with wide range dimming control
06/11/1996US5525871 Electrodeless discharge lamp containing push-pull class E amplifier and bifilar coil
06/11/1996US5525870 Control apparatus of fluorescent lamp
06/11/1996US5525865 Compact microwave source for exciting electrodeless lamps
06/06/1996WO1996017282A1 Ballast circuit for powering gas discharge lamp
06/05/1996EP0715487A2 Process and circuit for starting and operating high pressure discharge lamps
06/05/1996DE19508468A1 Current supply device for rectifying AC voltage from AC voltage source and converting rectified voltage to HF output signal for application to load
06/05/1996CN1123970A Power source device
06/05/1996CN1123968A Power supply device
06/04/1996US5523656 High pressure discharge lamp operating circuit with light control during lamp run up
06/04/1996US5523655 Neon fluorescent lamp and method of operating
06/04/1996US5523654 For triggering a gaseous discharge flashtube
05/1996
05/30/1996WO1996007297A3 Circuit arrangement for a discharge lamp comprising a dc-ac converter and a resonance circuit
05/30/1996WO1996007296A3 Circuit arrangement for a discharge lamp comprising first and second means for generating low frequency current to the lamp
05/29/1996EP0714225A1 Suppressor for an electronic ballast in a discharge lamp
05/29/1996EP0714224A2 Method and circuit system for controlling a lumino-technical electronic appliance
05/28/1996US5521689 Image forming apparatus with flash fixing
05/28/1996US5521467 High power factor, high-frequency operating circuit for a low-pressure discharge lamp
05/28/1996US5521449 Noise suppression circuit
05/23/1996WO1996015650A1 System to optimize artificial lighting levels with increasing daylight level
05/23/1996WO1996015649A1 Vertical illuminance determines preferred lighting level
05/23/1996WO1996015571A1 Circuit arrangement
05/23/1996WO1996015546A1 Method and apparatus for controlling lamp intensity
05/23/1996DE4441141A1 Mains-fed ballast feeding load with pulsed DC e.g. for compact fluorescent lamps
05/22/1996EP0713353A2 Inverter apparatus
05/22/1996EP0713352A2 Discharge lamp-lighting apparatus
05/22/1996EP0683966A4 Electronic ballast with two transistors and two transformers.
05/22/1996CN1123068A High frequency AC/AC converter with power factor correction
05/22/1996CN1122997A Starting device for fluorescent lamp
05/22/1996CN1031842C Energy-saving fluorescent lamp of non-strobe flashing type
05/21/1996US5519289 For use with gas discharge lamps
05/21/1996US5519286 Electronic ballast with built-in times power saver and photoelectric switching for high-pressure mercury vapor, metallic vapor and sodium vapor lamps
05/17/1996WO1996014725A1 Device for operating a gas discharge lamp
05/17/1996WO1996014724A1 Device for operating a gas discharge lamp
05/15/1996EP0689757A4 High power factor circuits for energizing gas discharge lamps
05/15/1996EP0688492A4 Protection circuit for electronic ballasts which use charge pump power factor correction
05/15/1996EP0681779A4 Single transistor ballast for gas discharge lamps.
05/15/1996DE19540841A1 Stroboskopeinrichtung Stroboskopeinrichtung
05/15/1996CN1122491A Lamp starting apparatus for liquid crystal projector
05/14/1996US5517403 Inverter device
05/14/1996US5517392 Sleeve retention for flexible core of a flashlight
05/14/1996US5517088 Universal ignition circuit for high pressure discharge lamps
05/14/1996US5517087 Fluorescent lamp ignition circuit
05/14/1996US5517086 For a discharge lamp
05/09/1996DE4439885A1 Vorrichtung zum Betreiben einer Gasentladungslampe Device for operating a gas discharge lamp
05/09/1996DE4439812A1 Vorrichtung zum Betreiben einer Gasentladungslampe Device for operating a gas discharge lamp
05/08/1996CN1122098A Discharge lamp dimmer
05/07/1996US5514938 D.C. ciruit for starting high pressure discharge lamp
05/07/1996US5514935 Lighting circuit for vehicular discharge lamp
05/02/1996WO1996013141A2 Circuit arrangement for a lamp comprising a first and second circuit branch connected to the lamp
05/01/1996EP0710053A2 Operating circuit for a compact fluorescent lamp
05/01/1996EP0710052A1 Electronic starter for a fluorescent lamp
05/01/1996EP0574540B1 Solar powered lamp utilizing cold cathode fluorescent illumination and method of facilitating same
04/1996
04/30/1996US5512801 Ballast for instant-start parallel-connected lamps
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