Patents
Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100)
06/1995
06/28/1995CN2202387Y Pinboard ballast
06/28/1995CN1104314A Luminaire
06/27/1995US5428268 Low frequency square wave electronic ballast for gas discharge
06/27/1995US5428266 Electronic ballast with leakage transformer
06/27/1995US5428265 Processor controlled fluorescent lamp dimmer for aircraft liquid crystal display instruments
06/27/1995US5428264 Electronic ballast with controlled operating voltage
06/23/1995CA2138602A1 Electrodeless fluorescent lamp
06/22/1995WO1995017080A1 Solid state power supply circuit for cold cathode lighting
06/22/1995WO1995017032A1 Clocked current supply
06/22/1995DE4343708A1 Device for simulating TV receiver operation
06/21/1995EP0659037A2 Gas discharge lamp ballast circuit with indicator of ballast operability
06/21/1995EP0659036A1 Rectifier ballast
06/21/1995EP0659035A1 Process for controlling the total illumination in a room and device for such a process
06/21/1995EP0658922A2 Illumination unit; and electrodeless low-pressure discharge lamp, holder, and supply unit suitable for use in the illumination unit
06/21/1995EP0658921A1 Low-pressure mercury discharge lamp
06/21/1995EP0658799A1 Method and system for inspecting an assembly, and electrical inspection apparatus for a flash unit
06/21/1995CN2201768Y Electronic ballast of light regulating neon
06/21/1995CN2201766Y Neon electronic transformer high frequency radiation eliminating device
06/21/1995CN2201765Y Dual output power source converter of fluorescent lamp
06/20/1995US5426350 High frequency transformerless electronics ballast using double inductor-capacitor resonant power conversion for gas discharge lamps
06/20/1995US5426349 Electronic ballast with two-transistor switching device
06/20/1995US5426348 High efficiency ballast for operation of electronic lamps
06/20/1995US5426347 Lighting system with emergency standby feature
06/20/1995US5426346 Gas discharge lamp ballast circuit with reduced parts-count starting circuit
06/20/1995US5426344 Electronic ballasts
06/16/1995CA2137586A1 Gas discharge lamp ballast circuit with indicator of ballast operability
06/15/1995WO1995016339A1 Protection circuit for electronic ballasts which use charge pump power factor correction
06/15/1995WO1995016338A1 High power factor circuits for energizing gas discharge lamps
06/15/1995WO1995016337A1 Electronic ballast with two transistors and two transformers
06/14/1995EP0658072A2 Ballast circuit for a cathode-heated type of gas discharge lamp
06/14/1995EP0658071A1 Balancing ballast for two lamps in parallel
06/14/1995EP0657091A1 Freely oscillating inverter with pulse width control.
06/14/1995DE4341809A1 Starting and driving device for gas-discharge lamps
06/14/1995CN2200899Y Capacitive induction ballast
06/14/1995CN2200898Y Electronic transformer of neon lamp
06/14/1995CN2200897Y Quick starter for fluorescent lamp
06/14/1995CN2200896Y No contact point electronic starter
06/14/1995CN1028948C Fluorescent lamp controllers with dimming control
06/14/1995CA2137749A1 Circuit arrangement
06/13/1995US5424893 Gas discharge device power supply with ground fault protection
06/13/1995US5424798 For an auxiliary light source
06/13/1995US5424617 HID lamp ignitor-timer with automatic reset for dips in line voltage
06/13/1995US5424616 Modulatged high frequency discharge lamp operating circuit with IR suppression
06/13/1995US5424615 Discharge lamp ballast operating on induced voltage in the primary winding of a boosting transformer
06/13/1995US5424614 Modified half-bridge parallel-loaded series resonant converter topology for electronic ballast
06/13/1995US5424613 Method of operating a gas-discharge lamp and protecting same from overload
06/13/1995US5424611 Method for pre-heating a gas-discharge lamp
06/13/1995US5424610 Compact fluorescent outboard ballast
06/07/1995EP0654203A4 High frequency electronic circuit for load ballasting.
06/07/1995EP0636304A4 High power factor gas lamp energizing circuit.
06/07/1995CN2200273Y Energy-saving starting switch for waste and old fluorescent lamp
06/07/1995CN2200272Y Ballast for fluorescent lamp
06/07/1995CN2200271Y Low voltage starting energy-saving switch for fluorescent lamp
06/07/1995CA2134511A1 Ballast circuit for a cathode-heated type of gas discharge lamp
06/06/1995US5422548 Cut-off vehicular discharge lamp circuit having wait and monitor modes
06/06/1995US5422547 Fluorescent lamp control circuit with dimmer
06/06/1995US5422546 Dimmable parallel-resonant electric ballast
06/06/1995US5422545 Closed loop feedback control circuits for gas discharge lamps
06/01/1995WO1995014963A1 Energy saving power control system
05/1995
05/31/1995EP0655880A1 Low voltage circuit for operating a low pressure discharge lamp
05/31/1995EP0655174A1 Transistor circuit for powering a fluorescent lamp
05/31/1995CN2199662Y Adjustable light ballast for fluorescent lamp
05/31/1995CN2199660Y Electronic ballast for group controlling of neon lamp
05/31/1995CN2199659Y Electronic starting ballast for preheated fluorescent lamp
05/31/1995CN2199421Y Multipurpose discharge lamp
05/31/1995CN1103231A Power source device
05/31/1995CN1028708C Polarity-changeable dc lighting installation
05/30/1995US5420779 Inverter current load detection and disable circuit
05/30/1995US5420481 Fluorescent lamp with wide range of luminous intensities
05/30/1995US5420479 High pressure vapor discharge lamp with a built-in igniter
05/24/1995EP0654203A1 High frequency electronic circuit for load ballasting
05/24/1995EP0654156A1 Toggle brightening circuit for powering gas discharge lamps and method for operating gas discharge lamps
05/24/1995CN2198739Y High efficiency daylight lamp
05/24/1995CN2198738Y Electronic transformer for eliminating neon lamp tube wave node
05/24/1995CN2198737Y Brightness regulator for daylight lamp
05/24/1995CN1028587C Apparatus for controlling gas-filled tube lamps
05/23/1995US5418432 Variable color luminaire
05/18/1995WO1995013574A1 Electronic ballast with low harmonic distortion
05/17/1995EP0653903A2 Fluorescent tube assembly and method
05/17/1995EP0653777A1 Discharge lamp provided with a bimetal switch, and bimetal switch suitable for a lamp
05/17/1995EP0653150A1 Fluorescent tube driver and lighting system
05/17/1995EP0643900A4 Electrodeless discharge lamp containing push-pull class e amplifier and bifilar coil.
05/17/1995EP0641510A4 Electrodeless discharge lamp including impedance matching and filter network.
05/17/1995CN2197790Y Two purpose ballast for fluorescent lamp
05/17/1995CN2197789Y Electronic initiating ballast for fluorescent lamp
05/17/1995CN2197788Y D.C. power supply
05/17/1995CN2197557Y multifunctional AC/DC fluorescent lamp
05/17/1995CN2197555Y Regulating fluorescent lamp
05/16/1995US5416677 Warning light socket assembly and method for installing same
05/16/1995US5416388 Electronic ballast with two transistors and two transformers
05/16/1995US5416387 Single stage, high power factor, gas discharge lamp ballast
05/16/1995US5416386 Electronic ballast with controlled DC rail voltage
05/16/1995US5416385 Means for compact spatial optical integration
05/11/1995WO1995012964A1 High efficiency uv backlighting system for rear illumination of electronic display devices
05/11/1995DE4338564A1 Control circuit for half-bridge or full-bridge inverters
05/10/1995EP0652691A1 A ballast device for a compact fluorescent lamp
05/10/1995EP0652689A2 Modular lamp power supply system
05/09/1995US5414327 High frequency discharge lamp operating circuit with frequency control of the ignition voltage
05/09/1995US5414325 Gas discharge lamp ballast circuit with automatically calibrated light feedback control
05/04/1995WO1995012300A1 Double resonant driver ballast for gas lamps