| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
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| 06/15/1994 | EP0601874A1 Converter for start, glow to arc and run functions of a DC high intensity discharge lamp |
| 06/15/1994 | EP0601091A1 Resonance mode converter with a series-parallel resonance |
| 06/15/1994 | CN2169273Y Flueorescent ballast |
| 06/15/1994 | CN1087978A Energy saving and brightness controlling lamp |
| 06/15/1994 | CA2103425A1 High power factor circuit for powering a load |
| 06/15/1994 | CA2103418A1 Base for electrodeless discharge lamp |
| 06/14/1994 | US5321595 Double bulb mercury vapor lamp apparatus |
| 06/14/1994 | US5321338 Lamp starting circuit |
| 06/14/1994 | US5321337 Ballast having starting current restraint circuitry for preventing a large in-rush current and protection circuitry for preventing damage due to a start-up failure |
| 06/12/1994 | CA2103432A1 Versatile circuit topology for off line operation of a dc high intensity discharge lamp |
| 06/09/1994 | DE4241314A1 Compact gas discharge lamp with socket adaptor - has built-in starter circuit and contacts engaged by electrode contacts of gas discharge envelope |
| 06/08/1994 | EP0600340A1 Passive circuit for improving the power factor |
| 06/08/1994 | CN2168388Y Voice-operated, programme-controlled and light-regulated fluorescent lamp controllor |
| 06/08/1994 | CN2168387Y Low-voltage gas discharge lamp light-regulating device |
| 06/08/1994 | CN2168385Y Starting and lighting device for multi-tube fluorescent lamp |
| 06/08/1994 | CN2168384Y Electronic starting unit |
| 06/08/1994 | CN1087762A AC-to-DC converter |
| 06/08/1994 | CN1024979C Supply circuit |
| 06/07/1994 | US5319286 Ignition scheme for a high intensity discharge ballast |
| 06/07/1994 | US5319285 Starting circuit for a high intensity discharge lamp |
| 06/07/1994 | US5319284 Electronic ballast circuit for discharge lamp |
| 06/07/1994 | US5319281 Fluorescent tube heating and starting circuit |
| 06/01/1994 | EP0599598A1 Dimmer and groune fault interruption for solid state neon supply |
| 06/01/1994 | EP0599427A1 Static energy regulator for lighting networks with control of the quantity of the intensity and/or voltage, harmonic content and reactive energy supplied to the load |
| 06/01/1994 | EP0599405A1 Low harmonic power supply for a discharge lamp |
| 06/01/1994 | EP0599202A1 Method of and circuit for driving cathodoluminescence type lighting device |
| 06/01/1994 | CN2167508Y Device for control ultra violet lamp |
| 06/01/1994 | CN2167503Y Relay starting switch for lamps in various kind of type |
| 06/01/1994 | CN2167502Y Over current protection device for mini neon light transformer |
| 06/01/1994 | CN2167501Y Power-supply switch for three pins daylight lamp |
| 06/01/1994 | CN1087463A 放电灯照明装置 Discharge lamp lighting device |
| 06/01/1994 | CN1024885C Dimmer control circuit |
| 05/31/1994 | US5317237 Low voltage ballast circuit for a high brightness discharge light source |
| 05/27/1994 | CA2109753A1 Circuit arrangement |
| 05/26/1994 | WO1994012007A1 Circuit arrangement for operating low-pressure discharge lamps |
| 05/25/1994 | EP0598487A2 A reduced tension modular neon sign system |
| 05/25/1994 | EP0598271A1 High-frequency power unit for neon tubes |
| 05/25/1994 | EP0598110A1 Dimmable high power factor high-efficiency electronic ballast controller integrated circuit with automatic ambient over-temperature shutdown |
| 05/25/1994 | CN2166578Y Electronic program controller for neon lamp |
| 05/25/1994 | CN2166575Y Universal fast electronic starter for fluorescent |
| 05/25/1994 | CN2166520Y High-efficient, low-voltage electronic neon lamp |
| 05/25/1994 | CN2166519Y Non-filament fluorescent lamp |
| 05/25/1994 | CN1087220A Inverter device |
| 05/25/1994 | CA2109679A1 High intensity discharge and auxiliary lamp ballast |
| 05/24/1994 | US5315215 High-voltage switching circuit |
| 05/24/1994 | US5315214 Dimmable high power factor high-efficiency electronic ballast controller integrated circuit with automatic ambient over-temperature shutdown |
| 05/24/1994 | US5315160 Sequentially shifting control circuit for extendible light strings |
| 05/19/1994 | DE4238409A1 Schaltungsanordnung zum Betrieb von Niederdruckentladungslampen Circuit arrangement for operating low-pressure discharge lamps |
| 05/19/1994 | DE4238388A1 UV radiation emission electronic control circuit for colour print drying - includes HV supply and UV radiation source adjustable within reqd. range |
| 05/18/1994 | EP0597740A1 Luminescent discharge lighting or signalling device for a motor vehicle |
| 05/18/1994 | EP0597661A1 Improvements in or relating to an electrical arrangement |
| 05/18/1994 | EP0597426A2 AC-to-DC converter |
| 05/18/1994 | EP0596942A1 Discharge lamp life and lamp lumen life-extender module, circuitry, and methodology |
| 05/18/1994 | CN2165611Y Remote-controlled energy-saving fluorescent lamp |
| 05/18/1994 | CN2165602Y 倍压电子镇流器 Times the pressure of electronic ballasts |
| 05/18/1994 | CN2165601Y Electronic glow starter for fluorescent lamp |
| 05/18/1994 | CN2165600Y Ballast for parallel multi-tube fluorescent lamp |
| 05/18/1994 | CN2165599Y Energy-saving ballast for fluorescent lamp |
| 05/18/1994 | CN2165598Y Ballast for energy-saving self-glow starting fluorescent lamp |
| 05/18/1994 | CN2165566Y High lightness illuminating emergency lamp |
| 05/17/1994 | US5313247 Flash device |
| 05/17/1994 | US5313145 Power supply for a gas discharge device |
| 05/17/1994 | US5313144 Power balanced coupling structure for electrodeless discharge lamp |
| 05/17/1994 | US5313143 Master-slave half-bridge DC-to-AC switchmode power converter |
| 05/17/1994 | US5313142 Compact fluorescent lamp with improved power factor |
| 05/11/1994 | WO1994010823A1 A circuit for driving gas discharge lamps having protection against diode operation of the lamps |
| 05/11/1994 | WO1994010675A1 Display system |
| 05/11/1994 | EP0596806A1 Circuit for operating and switching alternately two discharge lamps in a vehicle headlamp |
| 05/11/1994 | EP0596741A2 High-pressure sodium lamp control circuit providing constant peak current and color |
| 05/11/1994 | EP0596740A1 Feedback-controlled circuit and method for powering a high intensity discharge lamp |
| 05/11/1994 | EP0596739A1 Circuit and method for operating high pressure sodium vapor lamps |
| 05/11/1994 | EP0596397A1 High frequency power supply |
| 05/11/1994 | EP0596352A1 Freely oscillating current supply circuit |
| 05/11/1994 | EP0596152A1 AC ballast for electric discharge lamps |
| 05/11/1994 | CN2164627Y Energy-saving ballast without starter for thin tube high-effect fluorescent lamp |
| 05/11/1994 | CN2164593Y Two-purpose switch for fluorescent and incandescent lamp |
| 05/11/1994 | CN1086655A Computer-controlled light-changing device of metal halid projecting lamp |
| 05/10/1994 | US5311104 Wide dimming range gas discharge lamp drive system |
| 05/10/1994 | US5311102 Power supply unit for discharge lamps |
| 05/06/1994 | CA2108420A1 Circuit and method for operating high pressure sodium vapor lamps |
| 05/06/1994 | CA2108419A1 Feedback-controlled circuit and method for powering a high intensity discharge lamp |
| 05/06/1994 | CA2108418A1 High-pressure sodium lamp control circuit providing constant peak current and color |
| 05/05/1994 | CA2109235A1 Filtered, high-frequency power supply circuit, particularly for combination with a fluorescent lamp, especially a compact fluorescent lamp |
| 05/05/1994 | CA2102046A1 Free-running oscillatory power supply circuit |
| 05/04/1994 | EP0595520A1 Electrodeless fluorescent lamp |
| 05/04/1994 | EP0595415A2 Electronic ballast for a discharge lamp |
| 05/04/1994 | EP0595414A2 Electronic ballast for a high intensity discharge lamp |
| 05/04/1994 | EP0595398A2 A high pressure discharge lamp having overcurrent fuse protection |
| 05/04/1994 | EP0595333A1 Starting circuit for a high pressure metal vapor discharge lamp |
| 05/04/1994 | EP0594880A1 Process and circuit for starting fluorescent lamps at a given temperature of the preheating electrodes |
| 05/04/1994 | CN2164174Y DC daylight lamp |
| 05/04/1994 | CN2164173Y AC electronic ballast without radio-frequency interference |
| 05/04/1994 | CN2164172Y Glow starter |
| 05/04/1994 | CN2164171Y Glow starter able to prolong service life of daylight lamp |
| 05/04/1994 | CN2163933Y New-type fluorescent lamp |
| 05/04/1994 | CN1086371A Variable color luminaire |
| 05/03/1994 | US5309350 Push-pull inverter |
| 05/03/1994 | US5309193 Camera with automatic light adjusting device |
| 05/03/1994 | US5309068 Two relay switching circuit for fluorescent lighting controller |
| 05/03/1994 | US5309066 Solid state ballast for fluorescent lamps |