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Class Information
Number: 315/299
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation > Plural regulators
Description: Systems, wherein the current or voltage supply to the load device is controlled by (1) two or more diverse type regulating means, or (2) two or more regulating means of the same or diverse type which are operated by separate operating means, or (3) two or more regulating means connected in the system in different ways so as to control the current and/or voltage by exercising different effects in the systems.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7573206 |
Perceptible flickering reduction |
Aug. 11, 2009 |
| 7528556 |
Light regulation device |
May. 5, 2009 |
| 7443111 |
Liquid crystal display backlight inverter |
Oct. 28, 2008 |
| 7436123 |
Discharge lamp ballast device and lighting appliance |
Oct. 14, 2008 |
| 7402962 |
System and methods of driving an electroluminescent lamp |
Jul. 22, 2008 |
| 7391169 |
System and method for analog voltage processing in wide range for cold-cathode fluorescent lamp |
Jun. 24, 2008 |
| 7385356 |
Energy saving startup circuit for power supply |
Jun. 10, 2008 |
| 7358685 |
DC-DC converter having protective function of over-voltage and over-current and led driving circuit using the same |
Apr. 15, 2008 |
| 7336039 |
Driving device for discharge lamps |
Feb. 26, 2008 |
| 7332878 |
Electric candle flame simulator |
Feb. 19, 2008 |
| 7327051 |
Lighting control circuit for vehicle lamps |
Feb. 5, 2008 |
| 7323832 |
Inverter with dimming function |
Jan. 29, 2008 |
| 7315132 |
Apparatus for driving lamp of liquid crystal display device |
Jan. 1, 2008 |
| 7309962 |
Protection control circuit for discharge lamps |
Dec. 18, 2007 |
| 7301290 |
Brightness control device of light bulb module |
Nov. 27, 2007 |
| 7291986 |
Step sinusoidal voltage controlling method for hid, flourescent and incandescent light dimming applications |
Nov. 6, 2007 |
| 7285924 |
Driving circuit for LCD backlight lamps |
Oct. 23, 2007 |
| 7270790 |
Sterilizer monitoring and controlling system and method |
Sep. 18, 2007 |
| 7180250 |
Triac-based, low voltage AC dimmer |
Feb. 20, 2007 |
| 7109665 |
Three-way dimming CFL ballast |
Sep. 19, 2006 |
| 7023148 |
Power feedback power factor correction high frequency inverter |
Apr. 4, 2006 |
| 6979957 |
Apparatus for driving lamp of liquid crystal display device |
Dec. 27, 2005 |
| 6963175 |
Illumination control system |
Nov. 8, 2005 |
| 6936978 |
Methods and apparatus for remotely controlled illumination of liquids |
Aug. 30, 2005 |
| 6873120 |
Power consumption controller for pressurized gas lights |
Mar. 29, 2005 |
| 6864643 |
Backlight inverter for liquid crystal display panel of asynchronous pulse width modulation driving type |
Mar. 8, 2005 |
| 6858986 |
Programmable LED vehicle marker light assembly |
Feb. 22, 2005 |
| 6856103 |
Voltage regulator for line powered linear and switching power supply |
Feb. 15, 2005 |
| 6856099 |
Multi-lamp actuating facility |
Feb. 15, 2005 |
| 6653789 |
Multiregulator circuit and lamp |
Nov. 25, 2003 |
| 6624600 |
Lamp power measurement circuit |
Sep. 23, 2003 |
| 6534933 |
High power factor electronic ballast with load dependent bus voltage regulation |
Mar. 18, 2003 |
| 5192897 |
Electronic high frequency controlled device for operating gas discharge lamps |
Mar. 9, 1993 |
| 5095251 |
Low voltage DC light apparatus for a neon lamp |
Mar. 10, 1992 |
| 5046152 |
Ignition circuit for a gas discharge lamp |
Sep. 3, 1991 |
| 5013969 |
Protective device for neutron tubes |
May. 7, 1991 |
| 4797599 |
Power control circuit with phase controlled signal input |
Jan. 10, 1989 |
| 4772824 |
Double three-way dimming system |
Sep. 20, 1988 |
| 4733136 |
Method of regulating the power of vapor discharge lamps |
Mar. 22, 1988 |
| 4550276 |
Buss structures for multiscene manual lighting consoles |
Oct. 29, 1985 |
| 4259619 |
Three-way light dimmer switch |
Mar. 31, 1981 |
| 4240009 |
Electronic ballast |
Dec. 16, 1980 |
| 4096414 |
Dimmer control circuit |
Jun. 20, 1978 |
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