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)
07/2000
07/12/2000CN2387696Y Electronic ballast with noel preheating circuit
07/12/2000CN1054466C High-pressure discharge lamp
07/11/2000US6088249 Frequency modulated ballast with loosely coupled transformer
07/11/2000US6087811 Pulsed-output power supply with high power factor
07/11/2000US6087787 Fluorescent-lamp excitation circuit with frequency and amplitude control and methods for using same
07/11/2000US6087786 Methods of controlling the brightness of a glow discharge
07/11/2000US6087785 Harmonized strategy for eliminating acoustic resonance in a fluorescent lamp
07/11/2000US6087784 Glow discharge lamp
07/11/2000US6087783 Method and apparatus utilizing microwaves to enhance electrode arc lamp emission spectra
07/11/2000US6087782 Resonant mode power supply having over-power and over-current protection
07/11/2000US6087781 System for controlling fluorescent lamp operation and illumination
07/11/2000US6087776 Discharge lamp lighting circuit with protection circuit
07/11/2000US6087757 Driving method and driving circuit of piezoelectric transformers
07/06/2000WO2000040063A1 Ballast circuit
07/06/2000WO2000040062A1 Lamp ballast
07/06/2000WO2000040061A1 A method and apparatus for lamp control
07/06/2000WO2000040060A1 Dimmable electronic ballast
07/06/2000WO2000040059A1 Self-oscillating resonant converter with passive filter regulator
07/06/2000WO2000040058A1 Dimmable electronic ballast with single stage feedback inverter
07/06/2000WO2000022889A3 Hid ballast circuit with arc stabilization
07/06/2000DE19859253A1 Gas discharge lamp operating circuit e.g. for motor vehicle, has microcomputer with data, and table values representing lamp operating state enabling drive arm to be influenced to maintain optimal operating conditions
07/06/2000DE19859241A1 Gas discharge lamp operating circuit computes primary circuit demand current value giving optimal lamp drive from actual current, supply voltage and transfer device efficiency
07/05/2000EP1017257A1 Backlight brightness controller
07/05/2000EP1016332A1 A circuit for synchronizing the ignition of electronic ballast discharge lamps
07/05/2000EP1016331A1 Ignitor free discharge tube lighting apparatus
07/05/2000EP1016329A1 Group dimming system for gas discharge lamps
07/05/2000EP1016206A1 Control circuit and method for piezoelectric transformer
07/05/2000EP1016124A4 Inductive tuners for microwave driven discharge lamps
07/05/2000EP1016124A1 Inductive tuners for microwave driven discharge lamps
07/05/2000CN1259006A Method, circuit and electronic equipment for driving bias light
07/04/2000US6084362 Electronic ballast capable of linear and stepless light regulation
07/04/2000US6084361 Discharge lamp operating circuit with on time control of switching transistor
07/04/2000US6084360 Device for operation of a discharge lamp
06/2000
06/29/2000WO2000038483A1 High frequency electronic ballast for multiple lamp independent operation
06/29/2000WO2000038481A1 Circuit arrangement
06/29/2000WO2000038480A1 Ballast having a reactive feedback circuit
06/29/2000WO2000038479A1 Electronic ballast
06/29/2000WO2000038478A1 Ballast feedback scheme
06/29/2000WO2000038031A1 Electronic ballast
06/29/2000CA2321449A1 Ballast having a reactive feedback circuit
06/28/2000EP1013625A2 Nonlinear dielectric ceramic, pulse generating capacitor, high-pressure vapor discharge lamp circuit, and high-pressure vapor discharge lamp
06/28/2000EP1013153A1 Method to prevent spurious operation of a fluorescent lamp ballast
06/28/2000EP1013152A1 A drive circuit arrangement for a gas discharge lamp
06/28/2000EP0972429A4 Ballast method and apparatus and coupling therefor
06/28/2000CN2385496Y Electronic ballast for fluorescent lamp
06/28/2000CN2385419Y High efficiency electronic power supply transformer for neon lamp
06/28/2000CN1258429A Light source using dielectric barrier discharge lamp, and power supply
06/28/2000CN1258379A Unit comprising short-arc discharge lamp with starting antenna
06/27/2000US6081439 Inverter provided with output regulating mechanism
06/27/2000US6081077 Universal power supply for discharge lamps
06/27/2000CA2206276C Discharge lamp lighting device
06/27/2000CA2206200C Discharge lamp lighting device
06/22/2000WO2000036883A1 Circuit arrangement
06/22/2000WO2000036882A1 Circuit arrangement
06/21/2000CN2384397Y Separated-excited electronic ballast
06/21/2000CN2384396Y One driven multiple electronic ballast
06/21/2000CN2384395Y Special electronic ballast
06/21/2000CN1257643A Gas discharge lamp drive circuitry
06/21/2000CN1257642A Control circuit and method for piezoelectric transformer
06/21/2000CN1257401A Double-stabilizing starter for fluorescent lamp
06/20/2000US6078748 Lens-fitted film unit
06/20/2000US6078149 Device for operating a gas discharge lamp to produce output potentials having different absolute values
06/20/2000US6078147 Discharge lamp ballast circuit with duty cycle dimming control
06/20/2000US6078146 Centralized power reducing device, particularly for lighting installations
06/20/2000US6078145 Synchronous two wire multiple strobe autotrigger control circuit
06/20/2000US6078144 Electronic ballast with inrush current limiting
06/20/2000US6078143 Gas discharge lamp ballast with output voltage clamping circuit
06/15/2000WO2000035252A2 Digital lamp ballast
06/15/2000WO2000035077A1 Electric power overmodulation
06/14/2000EP1008899A1 Flash unit
06/14/2000EP0852894B1 Thermally-protected control apparatus containing electrical components
06/14/2000EP0734640B1 Circuit arrangement for a lamp comprising a first and second circuit branch connected to the lamp
06/14/2000CN2383291Y 脉冲红外光源 Pulsed infrared light source
06/14/2000CN2383290Y Remote control light tuning type AC electronic ballast
06/14/2000CN1256852A 电子镇流器 Electronic Ballast
06/14/2000CN1256608A Starting device for fluorescent lamp
06/13/2000US6075715 Power source device
06/13/2000US6075327 Power supply apparatus for a discharge lamp, especially for a motor vehicle headlight
06/13/2000US6075326 High intensity discharge lamp ballast and lighting system
06/13/2000US6075325 Inverter and method for driving a plurality of cold cathode tubes in parallel
06/08/2000WO2000033621A1 Circuit arrangement for operating a discharge lamp
06/08/2000WO2000033620A1 Self-exciting high frequency converter for gas discharge lamp
06/08/2000WO2000033619A1 Glow discharge starter
06/08/2000WO2000033618A2 Current fed, parallel resonant ballast
06/08/2000WO2000022887B1 Low-voltage ballast-free energy-efficient ultraviolet material treatment and purification system and method
06/08/2000DE19854764A1 Circuit for igniting, operating high pressure gas discharge lamp has converter switched on first with bridge switches open; bridge is switched on so full ignition voltage acts on ignition circuit
06/08/2000DE19853138C1 Circuit for energy-saving fluorescent tube operation is four-pole circuit with input connectors connected to connectors on one tube end cap to form series circuit with choke
06/07/2000EP1006561A1 Capacitive glow starting of high intensity discharge lamps
06/07/2000EP1006560A2 Feedthrough for a high-intensity discharge lamp, lighting circuit and lighting system with such a discharge lamp
06/07/2000CN1256066A Light source using dielectric barrier discharge lamp
06/07/2000CN1255823A Electric power supply method and device for gas discharge lamps
06/06/2000US6072710 Regulated self-oscillating resonant converter with current feedback
06/06/2000US6072286 Auxiliary lighting control circuit and method for a HID lamp lighting system
06/06/2000US6072285 Soft starter device for lamps
06/06/2000US6072284 Three-way compact fluorescent lamp ballast and lamp holder incorporating same
06/06/2000US6072283 Micro-controller-operated high intensity discharge lamp ballast system and method
06/06/2000US6072282 Frequency controlled quick and soft start gas discharge lamp ballast and method therefor
06/06/2000CA2135549C Circuit arrangement for operating a low-pressure discharge lamp, typically a fluorescent lamp, from a low-voltage source
06/06/2000CA2076814C Electrodeless hid lamp coupling structure with integral matching network
06/06/2000CA2067196C Fluorescent tube heating and starting circuit
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