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Class Information
Number: 315/294
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation > Plural load device regulation
Description: Systems which include means to regulate the current or voltage supplied to two or more of the load devices.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5629587 |
Programmable lighting control system for controlling illumination duration and intensity levels of lamps in multiple lighting strings |
May. 13, 1997 |
| 5569983 |
Electronic apparatus for producing variable spectral output |
Oct. 29, 1996 |
| 5550440 |
Sinusoidal inductorless dimmer applying variable frequency power signal in response to user command |
Aug. 27, 1996 |
| 5530322 |
Multi-zone lighting control system |
Jun. 25, 1996 |
| 5495150 |
Sequential, differential ignition of series operated arc lamps |
Feb. 27, 1996 |
| 5489827 |
Light controller with occupancy sensor |
Feb. 6, 1996 |
| 5479326 |
Ceiling system with readily movable lighting panels |
Dec. 26, 1995 |
| 5477111 |
Triac drive for lighting and for inductive load control |
Dec. 19, 1995 |
| 5471119 |
Distributed control system for lighting with intelligent electronic ballasts |
Nov. 28, 1995 |
| 5463280 |
Light emitting diode retrofit lamp |
Oct. 31, 1995 |
| 5430356 |
Programmable lighting control system with normalized dimming for different light sources |
Jul. 4, 1995 |
| 5424618 |
Arrangements for reducing interference from a dimming system, and dimmer therefor |
Jun. 13, 1995 |
| 5406176 |
Computer controlled stage lighting system |
Apr. 11, 1995 |
| 5349272 |
Multiple output ballast circuit |
Sep. 20, 1994 |
| 5345150 |
Regulating light intensity by means of magnetic core with multiple windings |
Sep. 6, 1994 |
| 5341069 |
Microprocessor-controlled strobe light |
Aug. 23, 1994 |
| 5319301 |
Inductorless controlled transition and other light dimmers |
Jun. 7, 1994 |
| 5313143 |
Master-slave half-bridge DC-to-AC switchmode power converter |
May. 17, 1994 |
| 5309062 |
Three-way compact fluorescent lamp system utilizing an electronic ballast having a variable frequency oscillator |
May. 3, 1994 |
| 5300864 |
Programmable lighting control system |
Apr. 5, 1994 |
| 5150016 |
LED light source with easily adjustable luminous energy |
Sep. 22, 1992 |
| 5128594 |
Illumination control apparatus |
Jul. 7, 1992 |
| 5107184 |
Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases |
Apr. 21, 1992 |
| 5083063 |
Radiation generator control apparatus |
Jan. 21, 1992 |
| 5083064 |
Lamp modulating circuitry for incandescent and fluorescent lamps |
Jan. 21, 1992 |
| 5066896 |
Electric lighting and power controllers therefor |
Nov. 19, 1991 |
| 5055746 |
Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases |
Oct. 8, 1991 |
| 5036255 |
Balancing and shunt magnetics for gaseous discharge lamps |
Jul. 30, 1991 |
| 5030893 |
Wall box dimming system and face plate and switch assembly therefor |
Jul. 9, 1991 |
| 5015924 |
Pupillary efficient lighting system |
May. 14, 1991 |
| 5006724 |
Control device for light sets |
Apr. 9, 1991 |
| 4933603 |
Circuit arrangement for indicator lights in motor vehicles |
Jun. 12, 1990 |
| 4924151 |
Multi-zone, multi-scene lighting control system |
May. 8, 1990 |
| 4876487 |
Low voltage illuminating lamp set with programmable output for garden use |
Oct. 24, 1989 |
| 4797599 |
Power control circuit with phase controlled signal input |
Jan. 10, 1989 |
| 4733530 |
Emission current control system for multiple hollow cathode devices |
Mar. 29, 1988 |
| 4716344 |
Microprocessor controlled lighting system |
Dec. 29, 1987 |
| RE32341 |
Disco light assembly |
Jan. 27, 1987 |
| 4593232 |
Flame simulating apparatus |
Jun. 3, 1986 |
| 4575658 |
Power supply for a ring laser |
Mar. 11, 1986 |
| 4550276 |
Buss structures for multiscene manual lighting consoles |
Oct. 29, 1985 |
| 4523132 |
Centrally controlled lighting installation having a plurality of individually switched light points central switch elements and individual light switches therefor |
Jun. 11, 1985 |
| 4499452 |
Modulation installation for sector supply of charge elements |
Feb. 12, 1985 |
| 4463287 |
Four lamp modular lighting control |
Jul. 31, 1984 |
| 4417182 |
Moving flutter illusion electric light controller |
Nov. 22, 1983 |
| 4408142 |
Device for the control of the luminous flux from a main beam bulb in a motor vehicle |
Oct. 4, 1983 |
| 4398131 |
Device for controlling the variations in time of the power of a lighting installation in relation to a preset programme |
Aug. 9, 1983 |
| 4396871 |
Arrangement for digital brightness control of lamps |
Aug. 2, 1983 |
| 4389598 |
Disco light assembly |
Jun. 21, 1983 |
| 4388567 |
Remote lighting-control apparatus |
Jun. 14, 1983 |
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