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)
12/1994
12/14/1994	EP0628178A1 Photographic flash apparatus
12/14/1994	CN2185497Y Sodium lamp trigger with temp. relay
12/14/1994	CN2185495Y Silicon bridge eliminator for electronic ballast
12/13/1994	US5373218 Toggle brightening circuit for powering gas discharge lamps and method for operating gas discharge lamps
12/13/1994	US5373217 Method and circuit for enhancing stability during dimming of electrodeless hid lamp
12/13/1994	US5373216 Electrodeless arc tube with stabilized condensate location
12/13/1994	US5373215 Ionization tube simmer current circuit
12/11/1994	CA2098129A1 Power reduction control for inductive lighting installation
12/07/1994	EP0627871A1 Electronic supply for igniting and operating a high-pressure discharge lamp
12/07/1994	CN2185019Y Integrate new type fluoresent lamp starting module
12/07/1994	CN2185018Y Non-rotary fluoresent lamp starter base
12/07/1994	CN1096152A Ballast for gas discharge lamps
12/07/1994	CN1096088A Serial tubular electronic fluorescent light
12/06/1994	US5371444 Electronic ballast power supply for gas discharge lamp including booster start circuit responsive to power up condition
12/06/1994	US5371443 Electronic ballast of the high power factor-constant power type
12/06/1994	US5371442 Remote ballast circuit assembly
12/06/1994	US5371441 Plug-in electronic lighting product
12/06/1994	US5371440 High frequency miniature electronic ballast with low RFI
12/06/1994	US5371439 Electronic ballast with lamp power regulation and brownout accommodation
12/06/1994	US5371438 Energy conversion device having an electronic converter with DC input terminal for delivering a high frequency signal
12/06/1994	CA1333408C Electronic ballast circuit for fluorescent lamps
11/1994
11/30/1994	EP0626799A2 Process for operating a high pressure discharge lamp
11/30/1994	CN2184137Y Illuminating equipment for fluorescent lamp
11/30/1994	CN1095882A Quick electronic lamp starting device
11/30/1994	CN1095691A UV bulb intensity control for water treatment system
11/29/1994	US5369340 Driving scheme for a high intensity discharge ballast down converter
11/29/1994	US5369339 Circuit arrangement for reducing striations in a low-pressure mercury discharge lamp
11/24/1994	WO1994027420A1 Electronic ballast for fluorescent lamp
11/24/1994	WO1994027419A1 System and method for distributing power to gas discharge lamps
11/24/1994	DE4317011A1 Power supply device for operating a DC gas-discharge lamp
11/24/1994	CA2162889A1 System and method for distributing power to gas discharge lamps
11/23/1994	EP0625794A1 Illumination unit, electrodeless low-pressure discharge lamp, and coil suitable for use therein
11/23/1994	CN2183652Y Energy-saving device for street lamp
11/23/1994	CN2183651Y Longlife electronic starter
11/23/1994	CN2183650Y Preheating startor of fluorescent lamp
11/23/1994	CN2183649Y Abnormality protecting electronic ballast
11/23/1994	CN1095547A 电源 Power supply
11/23/1994	CN1095546A Two-purpose solid fluorescent lamp trigger
11/23/1994	CN1095525A Electrodeless high-pressure discharge lamp
11/22/1994	US5367229 Lamp ballasts
11/22/1994	US5367228 High-pressure sodium lamp control circuit providing constant peak current and color
11/22/1994	US5367227 Circuit arrangement for operating a gas-discharge lamp
11/22/1994	US5367225 High frequency luminous tube power supply having neon-bubble and mercury-migration suppression
11/22/1994	US5367224 High frequency luminous tube power supply having neon-bubble and mercury-migration suppression
11/22/1994	US5367223 Fluoresent lamp current level controller
11/17/1994	EP0624304A1 A circuit for driving gas discharge lamps having protection against diode operation of the lamps
11/17/1994	DE4314993A1 Ballast device (ballast)
11/16/1994	CN2183066Y Symmetric type wave filter for electronic ballast
11/15/1994	US5365161 Stabilized voltage supply
11/15/1994	US5365152 Apparatus for controlling the power to a discharge-lamp
11/15/1994	US5365151 Gas discharge lamp ballast circuit with frequency modulated pulse control
11/15/1994	US5365150 Inverter device having load voltage detection function
11/15/1994	US5365146 Control device having an oscillator unit that pulses a direct current through the filaments of the vacuum fluorescent display unit thereof and methods of making the same
11/15/1994	US5365144 Electrical power supply unit for the supply of low power loads
11/10/1994	WO1994026079A1 Fiber-optic anticycling device for street lamps
11/10/1994	WO1994025912A1 Toggle brightening circuit for powering gas discharge lamps and method for operating gas discharge lamps
11/10/1994	DE4310710A1 Circuit arrangement for operating hot-cathode fluorescent lamps
11/09/1994	EP0623991A1 Dimming device for a load
11/09/1994	CN2182508Y Electronic controller for efficient long-life fluorescent lamp
11/09/1994	CN2182507Y Mixing transformer for neon lamp
11/09/1994	CN1094872A Device for controlling the variation of the power and/or the speed of a load
11/08/1994	US5363020 Electronic power controller
11/08/1994	US5363019 Variable color discharge device
11/08/1994	US5363018 Ballast circuit equipped with ground fault detector
11/08/1994	US5363017 Starting capacitor disconnect scheme for a fluorescent lamp
11/08/1994	CA2095793A1 Electronici ballast for fluorescent lamp
11/06/1994	CA2122648A1 Power and/or speed control device
11/03/1994	DE4314584A1 Control arrangement for the pulsed operation of discharge lamps
11/02/1994	EP0622978A1 Device for controlling to a desired value the light output of a high or low pressure gas discharge lamp
11/02/1994	EP0622977A2 Discharge lamp dimmer
11/02/1994	EP0622976A2 Ballasting network with integral trap
11/02/1994	EP0622820A1 Bi-metallic switch element
11/02/1994	EP0401278B1 A circuit for starting and operating a gas discharge lamp
11/02/1994	CN2181792Y Energy-saving life prolonged fluorescent lamp
11/02/1994	CN1094560A Cathodic pre-heating circuit of electronic ballast
11/02/1994	CN1094559A Daylight lamp starter by one pull
11/02/1994	CN1094558A Daylight lamp starter by one pull
11/01/1994	US5361274 Microwave discharge device with TMNMO cavity
11/01/1994	US5361019 Illumination level control device
10/1994
10/31/1994	CA2121652A1 Discharge lamp dimmer
10/28/1994	CA2114990A1 Ballasting network with integral trap
10/28/1994	CA2114921A1 High voltage switching circuit
10/27/1994	CA2121004A1 Device for controlling to a desired value the light output of a high or low pressure gas discharge lamp
10/27/1994	CA2094844A1 Adaptor of a small scale fluorescent lamp
10/26/1994	EP0621744A2 Power supply circuit for a gas discharge lamp
10/26/1994	EP0621743A1 Power factor correcting circuit
10/26/1994	EP0621742A2 Housing for a lamp ballast
10/26/1994	EP0621741A2 Apparatus for operating electric lamps
10/26/1994	CN2181165Y Sound wave remote controlling high-frequency electronic ballast
10/26/1994	CN2181160Y Starter
10/26/1994	CN2181077Y Pullswitch
10/25/1994	US5359274 Active offset for power factor controller
10/25/1994	US5359264 Integral impedance matching structure for electrodeless discharge lamp
10/25/1994	US5359263 Tuned LRC ballasting circuit for compact fluorescent lighting
10/24/1994	CA2121726A1 Circuit arrangement
10/21/1994	CA2119803A1 Power supply circuit for a gas discharge lamp
10/20/1994	DE4412544A1 Power supply system with a high power factor
10/20/1994	DE4410080A1 Method and circuit for increasing the stability during the dimming of an electrodeless high-intensity discharge lamp (HID lamp)
10/20/1994	DE4312615A1 Control device for generating a vehicle output signal
10/19/1994	EP0620700A1 Electronic ballast

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