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)
04/1996
04/25/1996WO1996012338A2 Ballast
04/25/1996CA2178953A1 Ballast filtering scheme for reduced harmonic distortion
04/24/1996EP0708579A1 Method and apparatus for driving a discharge lamp
04/24/1996CN1121188A Lens-fitted photo film unit and electronic flash device for use therewith
04/23/1996US5510974 High frequency push-pull converter with input power factor correction
04/23/1996US5510681 Operating circuit for gas discharge lamps
04/23/1996US5510680 Electronic ballast with special voltage waveforms
04/20/1996CA2160864A1 Method to operate a discharge lamp, and circuit arrangement for operation of the discharge lamp
04/18/1996WO1996011561A1 Lamp socket, lamp and method of controlling lighting
04/18/1996DE19537883A1 Control system for igniting or driving HV discharge lamp
04/18/1996DE19537876A1 Power supply 10-15V control system for igniting or operating HV discharge lamps
04/18/1996DE19534885A1 Photographic electron flash unit with flash tube arranged in reflector for camera
04/18/1996DE19501695A1 Starter or ballast circuit for operation of electrical gas-discharge lamp - has electrodes of lamp coupled to series-coupled inverter switches and to output of transformer-based heating circuit.
04/18/1996CA2202356A1 Lamp socket, lamp and method of controlling lighting
04/17/1996EP0707438A2 Ballast for at least one discharge lamp
04/17/1996EP0707437A2 Circuit for operating one or more low pressure discharge lamps
04/17/1996CN2225120Y Capacitance voltage-changing highpower factor gas discharging lamp ballast
04/17/1996CN2225119Y Assitant initiator of fluorescent light
04/17/1996CN2225095Y Neon with electromagnetic induction electrodes
04/17/1996CN1120873A Process for operating an incoherently emitting radiation source
04/17/1996CN1120797A A ballast device for a compact fluorescent lamp
04/16/1996US5508882 Ballast case for electronic fluorescent lamp
04/16/1996US5508592 Method for deflecting the arc of an electrodeless hid lamp
04/16/1996US5508589 Power saving voltage reduction system for high intensity discharge lighting systems
04/11/1996WO1996010898A2 Improvements in ballast circuit for fluorescent lamps
04/11/1996WO1996010897A1 Compact dimmable fluorescent lamps
04/10/1996EP0706307A2 Circuit for controlling the light intensity and the operating mode of discharge lamps
04/10/1996EP0706306A2 A hardware arrangement and method of driving a piezo-electric transformer
04/10/1996CN2224497Y Capacitor-inductance and electronic mixing-type ballast
04/09/1996US5506646 Test firing of a photographic flash assembly
04/09/1996US5506479 Device for operating a gas-discharge lamp
04/04/1996WO1996010323A1 Cold cathode discharge device
04/03/1996EP0705058A1 Device for supplying electric power to flashlamp and method thereof
04/03/1996EP0705057A2 High-frequency power supply device, lighting device incorporating an electrodeless discharge lamp, and illuminating apparatus incorporating the lighting device
04/03/1996EP0704144A1 Soft switching circuitry
04/03/1996EP0657091B1 Freely oscillating inverter with pulse width control
04/03/1996CN2223880Y Multi-function switch for light-adjusting and energy-saving
04/03/1996CN1119820A High-pressure discharge lamp lighting device
04/02/1996USRE35196 Electronic flash control device employing a plurality of control signals
04/02/1996US5504401 Transformer replacement for a solid-state lighting ballast
04/02/1996US5504399 Electrical circuit for operating a fluorescent lamp and for measuring the lamp current
04/02/1996US5504398 Dimming controller for a fluorescent lamp
04/02/1996US5504396 Discharge lamp control system
04/02/1996US5504391 Excimer lamp with high pressure fill
03/1996
03/28/1996WO1996009742A1 Flashlamp energy control circuit
03/28/1996WO1996009741A1 Power factor correcting circuit
03/28/1996DE19534884A1 Electronic flash unit for photographic use
03/27/1996EP0702887A1 Circuit arrangement
03/27/1996EP0702886A1 Emi suppression for an electrodeless discharge lamp
03/27/1996EP0702885A1 Circuit arrangement
03/27/1996CN2223550Y Multi-function high frequency electronic ballast
03/26/1996US5502635 Parallel resonant integrated inverter ballast for gas discharge lamps
03/26/1996US5502423 Discharge lamp lighting device
03/21/1996WO1996008944A1 Electronic starter in a fluorescent lamp apparatus
03/20/1996EP0702508A1 Electronic ballast with fuzzy-logic for gas-discharge lamps
03/20/1996EP0702507A1 Flash tube devices
03/20/1996EP0702506A1 Device for the lighting and instantaneous hot-relighting of lamps, particularly of the discharge type
03/20/1996EP0561862B1 Electrical circuit for the pulsed operation of high-pressure gas-discharge lamps
03/20/1996CN2222992Y Electronic ballast glow-starter mounted in bracket for fluorescent lamp
03/20/1996CN2222990Y Electronic ballast device with iron core electroinduction
03/20/1996CN1118980A Circuitry for preheating a gasdischarge lamp
03/20/1996CN1118949A Inverter AC power supply
03/20/1996CN1031374C AC-to-DC converter
03/19/1996US5500792 Zero-voltage switching type electronic ballast for fluorescent lamp
03/19/1996US5500576 Low height ballast for fluorescent lamps
03/19/1996US5500574 Inductively coupled substantially flat fluorescent light source
03/19/1996US5500573 Dimmer circuit for gas discharge lamps having electronic ballasts
03/19/1996US5500541 Semiconductor device having voltage sensing element
03/16/1996CA2157077A1 Flash tube devices
03/14/1996WO1996008125A1 Circuit arrangement
03/14/1996WO1996008124A1 Circuit for driving a gas discharge lamp load
03/14/1996DE19533103A1 Gas discharge lamp switch-on circuit e.g. for motor vehicle
03/13/1996EP0701390A2 Circuit for controlling the light intensity and the operating mode of discharge lamps
03/13/1996EP0701389A2 Circuit for controlling the light intensity and the operating mode of discharge lamps
03/13/1996EP0587602B1 Device for operating a gas discharge lamp
03/13/1996CN2222421Y Capacity valtage reduction dc electronic ballast
03/13/1996CN2222420Y High-effect energy-saving electronic ballast
03/12/1996US5498946 Device for controlling the variation of the power and/or the speed of a load
03/12/1996US5498937 Electrodeless high-pressure discharge lamp having coil supports of aluminum nitride supporting individual coil turns
03/12/1996US5498936 Power system with simplified, low cost self-starting self oscillator, power factor correction, power regulation and output open circuit voltage regulation, overload and short circuit protection
03/12/1996US5498933 Lighting device and method applying a relatively higher potential to light source surroundings
03/12/1996US5498931 Method for automatic switching and control of lighting
03/12/1996US5498930 Method of dimensioning and operating a low pressure discharge lamp
03/12/1996US5498928 Electrodeless high intensity discharge lamp energized by a rotating electric field
03/07/1996WO1996007297A2 Circuit arrangement for a discharge lamp comprising a dc-ac converter and a resonance circuit
03/07/1996WO1996007296A2 Circuit arrangement for a discharge lamp comprising first and second means for generating low frequency current to the lamp
03/07/1996DE4437204A1 Method of operating vehicle instrument fluorescent lamps over wide range of settings
03/07/1996DE19531966A1 Power supply e.g. for vehicle gas-discharge lamp
03/06/1996EP0700074A2 Neon fluorescent lamp and method of operating
03/06/1996EP0572585B1 Device for operating a gas-discharge lamp
03/06/1996CN2221852Y Electronic ballast for daylight lamp
03/06/1996CN2221851Y Glower for fluorescent lamp
03/06/1996CN2221850Y Energy-saving regulated and stabilizing transformer for gas-discharge lamp
03/06/1996CN2221849Y Special butt-joint tube module for electronic ballast of energy-saving lamp
03/06/1996CN2221831Y Energy-saving electronic fluorescent discharge lamp
03/06/1996CN2221711Y Energy-saving electronic lamp
03/05/1996US5497310 High-frequency power unit for neon tubes
03/05/1996US5497052 For an hid lamp
03/05/1996US5497001 Flash tube devices
02/1996
02/28/1996EP0699016A2 Circuit for operating low pressure discharge lamps
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