| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 03/01/1995 | EP0641149A1 Power controlof an inverter for a discharge lamp |
| 03/01/1995 | EP0641148A1 Electronic ballast for operating a load, for example a lamp |
| 03/01/1995 | EP0641147A1 Electronic quad ballast with improved hot restart |
| 03/01/1995 | CN2190850Y Multifunction electronic control low voltage neon lamp |
| 03/01/1995 | CN2190848Y Daylight lamp electronic energy saving light modulator |
| 03/01/1995 | CN2190847Y Plug-in type electronic ballast |
| 03/01/1995 | CN2190846Y Neon lamp fuse cut-out |
| 03/01/1995 | CA2130423A1 Electronic quad ballast with improved hot restart |
| 02/28/1995 | US5394065 Circuit for supplying current to a discharge tube |
| 02/28/1995 | US5394064 Electronic ballast circuit for fluorescent lamps |
| 02/28/1995 | US5394062 Lamp ballast circuit with overload detection and ballast operability indication features |
| 02/23/1995 | WO1995005696A2 Protection circuit for electronic systems in general and for an electronic ballast operating discharge lamps in particular |
| 02/23/1995 | DE4426896A1 Electrodeless lamp having a thin-shell power supply |
| 02/22/1995 | EP0639320A1 Method for feeding a plurality of discharge or fluorescent lamps connected in series, and apparatus that carries out such method |
| 02/22/1995 | EP0593554B1 Circuit for operating a fluorescent lamp |
| 02/22/1995 | EP0473679B1 Discharge lamp unit with variable light intensity |
| 02/22/1995 | EP0448701B1 Method and apparatus for improving signal to noise ratio in a telecine machine |
| 02/22/1995 | CN2190395Y Improvement for stage flashing light controller |
| 02/22/1995 | CN2190393Y Electronic light regulating ballast |
| 02/22/1995 | CN2190392Y Energy saving fluorescent light initiator |
| 02/22/1995 | CN2190391Y Fixing unit for fluorescent light ballast |
| 02/22/1995 | CN1099216A 放电灯点火装置 Discharge lamp ignition device |
| 02/22/1995 | CN1099215A Energy-saving durable ballast for gas-discharge lamp |
| 02/21/1995 | US5391966 Starting and operating circuit for ARC discharge lamp |
| 02/21/1995 | US5391965 Gas discharge ignition device and method using high frequency and high power to ignite a uniform electrode surface area |
| 02/16/1995 | WO1995005059A1 Parallel resonant ballast with boost |
| 02/15/1995 | CN2189780Y Duplex switch for fluorescent lamp |
| 02/15/1995 | CN2189694Y Low-voltage starting fluorescent lamp |
| 02/15/1995 | CN1098843A Starter for fluorescent lamp |
| 02/14/1995 | US5390071 Low interference controlled switching circuit for multiple loads |
| 02/14/1995 | US5389857 Magnetic ballast for fluorescent lamps |
| 02/14/1995 | US5389856 High-pressure discharge lamp with an integral fuse-capacitor component |
| 02/10/1995 | CA2103627A1 Variable frequency electronic ballast of high power factor and stabilized output voltage |
| 02/09/1995 | DE4428850A1 Discharge-lamp illumination device |
| 02/09/1995 | DE4326415A1 Method for driving a fluorescent lamp and arrangement for carrying out the method |
| 02/08/1995 | EP0637848A1 Amplifying gate thyristor with increased holding current |
| 02/08/1995 | EP0637835A1 Illumination arrangement for light and weathering testing systems with a xenon gas discharge lamp |
| 02/08/1995 | EP0637401A1 Two relay switching circuit for fluorescent lighting controller. |
| 02/08/1995 | EP0636284A4 Power supply. |
| 02/08/1995 | CN2189373Y Resonance type ballast for fluorescent |
| 02/07/1995 | US5387850 Electrodeless discharge lamp containing push-pull class E amplifier |
| 02/07/1995 | US5387849 Lamp ballast system characterized by a power factor correction of greater than or equal to 90% |
| 02/07/1995 | US5387848 Fluorescent lamp ballast with regulated feedback signal for improved power factor |
| 02/07/1995 | US5387847 Passive power factor ballast circuit for the gas discharge lamps |
| 02/07/1995 | US5387846 Combination ballast for driving a fluorescent lamp or tube and ballast protection circuit |
| 02/07/1995 | US5387845 Neon lamp power supply |
| 02/07/1995 | US5387801 Multiple wavelength light source |
| 02/02/1995 | DE4325050A1 Circuit arrangement for starting a preheatable discharge lamp |
| 02/01/1995 | EP0636304A1 High power factor gas lamp energizing circuit |
| 02/01/1995 | EP0636284A1 Power supply |
| 02/01/1995 | CN2188842Y Electronic power supply for neonlamp |
| 02/01/1995 | CN2188841Y Self-starting ballast for fluorescent lamp |
| 02/01/1995 | CN2188781Y Solar energy flash lamp |
| 02/01/1995 | CN1098242A Circuit arrangement |
| 01/31/1995 | US5386181 Excitation power supply device |
| 01/31/1995 | US5386180 Strobo apparatus |
| 01/31/1995 | CA2128682A1 Electrodeless lamp with thin shell power applicator |
| 01/26/1995 | DE4324844A1 Regulatable (controllable) current-supply network for gas-discharge lamps and other loads of any type, power-dependent in pulse and continuous-wave operation |
| 01/24/1995 | US5384519 Color mixing method for variable color lighting and variable color luminaire for use with the method |
| 01/24/1995 | US5384518 Power source device |
| 01/24/1995 | US5384516 Information processing apparatus including a control circuit for controlling a liquid crystal display illumination based on whether illuminatio power is being supplied from an AC power source or from a battery |
| 01/24/1995 | CA2006034C Rare gas discharge fluorescent lamp device |
| 01/19/1995 | WO1995002311A1 A non-stroboscopic energy-saving fluorescent lamp |
| 01/18/1995 | EP0634884A1 Glow switch starter |
| 01/18/1995 | EP0634781A2 Rare gas discharge fluorescent lamp device |
| 01/18/1995 | EP0560887B1 A wide dimming range gas discharge lamp drive system |
| 01/17/1995 | US5382882 Power supply circuit for a gas discharge lamp |
| 01/17/1995 | US5382881 Ballast stabilization circuitry for eliminating moding or oscillation of the current envelope in gas discharge lamps and method of operating |
| 01/17/1995 | US5382878 Auto-starting system for an electrodeless high intensity discharge lamp |
| 01/17/1995 | US5382877 Vehicle headlamp control system |
| 01/12/1995 | WO1995001712A1 Solid state ballast for high intensity discharge lamps |
| 01/12/1995 | DE4322748A1 Starter circuit for a fluorescent lamp |
| 01/11/1995 | EP0633711A1 Power regulator of discharge lamp and variable color illumination apparatus using the regulator |
| 01/11/1995 | EP0633710A1 Power supply for an arc discharge lamp |
| 01/11/1995 | CN2187364Y Self-controlling starter for fluorescent lamps |
| 01/11/1995 | CN1027415C 开关式电源 Switching Power Supplies |
| 01/10/1995 | US5381078 Control and communication processor potentiometer system for controlling fluorescent lamps |
| 01/10/1995 | US5381077 Power control circuit for high intensity discharge lamps |
| 01/10/1995 | US5381076 Metal halide electronic ballast |
| 01/10/1995 | US5381075 Method and apparatus for driving a flashing light systems using substantially square power pulses |
| 01/10/1995 | US5381073 Capacitively coupled RF fluorescent lamp with RF magnetic enhancement |
| 01/10/1995 | CA1333920C System for energizing a fluorescent tube |
| 01/05/1995 | WO1995001084A1 Soft switching circuitry |
| 01/05/1995 | DE4416042A1 Circuit arrangement for operating discharge lamps |
| 01/04/1995 | EP0632679A1 Method and circuit for control of room lighting |
| 01/04/1995 | CN2186980Y Electricity saving fluorescent lamp rectifier |
| 01/03/1995 | US5378965 Luminaire including an electrodeless discharge lamp as a light source |
| 01/03/1995 | US5378964 Electronic ballast circuit for discharge lamps |
| 12/28/1994 | EP0604643A4 Power supply circuit. |
| 12/28/1994 | CN2186472Y 电子镇流器 Electronic Ballast |
| 12/22/1994 | WO1994030033A1 Energy saving lamp controller |
| 12/22/1994 | DE4420830A1 Medical X-ray unit, radiation tube, position-indicating medical apparatus and light source control circuit for use in combination with the abovementioned devices |
| 12/22/1994 | DE4420403A1 Driving device for a high-voltage discharge lamp |
| 12/21/1994 | EP0454665B1 Method of dimensioning and operating a low pressure discharge lamp |
| 12/21/1994 | CN1027121C High-pressure sodium discharge lamp |
| 12/20/1994 | US5374875 High-power factor circuit for energizing gas discharge lamps |
| 12/20/1994 | US5374874 Electronic ballast with crest factor control |
| 12/15/1994 | DE4406534A1 Starter for cold-start discharge lamps |
| 12/15/1994 | DE4406533A1 Temperature protection circuit for an inductor |
| 12/14/1994 | EP0629104A2 Circuit for limiting the DC crest current and/or the inrush current after the ignition of a discharge lamp |