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Class Information
Number: 315/307
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation > Automatic regulation
Description: Systems wherein the regulation of the current or potential supplied to the load device is automatically controlled in response to some condition.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7042173 |
Controllable lighting system with a second communication protocol and appliances for this purpose |
May. 9, 2006 |
| 7038394 |
Ramp voltage generating apparatus and active matrix drive-type display apparatus |
May. 2, 2006 |
| 7038399 |
Methods and apparatus for providing power to lighting devices |
May. 2, 2006 |
| 7038400 |
Constant current Class 3 lighting system |
May. 2, 2006 |
| 7038401 |
Operating device and method for operating gas discharge lamps |
May. 2, 2006 |
| 7030565 |
Lamp control circuit with selectable color signals |
Apr. 18, 2006 |
| 7030570 |
Resonant inverter including feed back circuit with source of variable bias current |
Apr. 18, 2006 |
| 7026769 |
Luminary control system adapted for reproducing the color of a known light source |
Apr. 11, 2006 |
| 7023148 |
Power feedback power factor correction high frequency inverter |
Apr. 4, 2006 |
| 7019468 |
Electronic ballast with ignition and operation control |
Mar. 28, 2006 |
| 7019469 |
Sinewave dimmer control method |
Mar. 28, 2006 |
| 7015652 |
Electronic ballast having end of lamp life, overheating, and shut down protections, and reignition and multiple striking capabilities |
Mar. 21, 2006 |
| 7015653 |
Light modulating apparatus for excimer discharge lamp |
Mar. 21, 2006 |
| 7015656 |
Dimming circuit for a gas-discharge lamp |
Mar. 21, 2006 |
| 7015658 |
Driving circuit configured in a three-phase inverter and driving method thereof |
Mar. 21, 2006 |
| 7015660 |
Circuit for driving cold cathode tubes |
Mar. 21, 2006 |
| 7012378 |
Programmable current source and methods of use |
Mar. 14, 2006 |
| 7007417 |
Audio-visual display device for pictorial artwork |
Mar. 7, 2006 |
| 7009343 |
System and method for producing white light using LEDs |
Mar. 7, 2006 |
| 7009348 |
Multiple channel ballast and networkable topology and system including power line carrier applications |
Mar. 7, 2006 |
| 7009854 |
Inverter transformer and inverter circuit |
Mar. 7, 2006 |
| 7002305 |
Electronic ballast for a discharge lamp |
Feb. 21, 2006 |
| 6998792 |
Electrodeless discharge lamp lighting device, light bulb type electrodeless fluorescent lamp and discharge lamp lighting device |
Feb. 14, 2006 |
| 6998794 |
Device and method for driving organic EL display |
Feb. 14, 2006 |
| 6998797 |
Device and method for adjusting currents of lamp tubes |
Feb. 14, 2006 |
| 6995518 |
System, apparatus, and method for driving light emitting diodes in low voltage circuits |
Feb. 7, 2006 |
| 6995524 |
Discharge lamp starter |
Feb. 7, 2006 |
| 6989638 |
Discharge lamp lighting circuit |
Jan. 24, 2006 |
| 6989807 |
LED driving device |
Jan. 24, 2006 |
| 6982528 |
Thermal protection for lamp ballasts |
Jan. 3, 2006 |
| 6979959 |
Apparatus and method for striking a fluorescent lamp |
Dec. 27, 2005 |
| 6979960 |
Circuit for driving light source, projector, method for controlling lighting of light source, and computer readable program for executing the same |
Dec. 27, 2005 |
| 6977471 |
Electroluminescent device |
Dec. 20, 2005 |
| 6977472 |
Electrodeless self-ballasted fluorescent lamp and discharge lamp operating device |
Dec. 20, 2005 |
| 6975078 |
Dimming-control lighting apparatus for incandescent electric lamp |
Dec. 13, 2005 |
| 6975079 |
Systems and methods for controlling illumination sources |
Dec. 13, 2005 |
| 6972523 |
Metal halide lamp control device with linear control power transducer |
Dec. 6, 2005 |
| 6969959 |
Electronic control systems and methods |
Nov. 29, 2005 |
| 6967449 |
Discharge lamp lighting apparatus |
Nov. 22, 2005 |
| 6967978 |
Light-emitting element driving device |
Nov. 22, 2005 |
| 6965307 |
Sign sentry |
Nov. 15, 2005 |
| 6963177 |
Open circuit detection for vehicular lamp |
Nov. 8, 2005 |
| 6963178 |
Apparatus for controlling operation of gas discharge devices |
Nov. 8, 2005 |
| 6958581 |
High-intensity discharge lamp operating device and method for controlling the high-intensity discharge lamp |
Oct. 25, 2005 |
| 6958582 |
Lamp current control circuit |
Oct. 25, 2005 |
| 6958584 |
Lamp driving apparatus and method for driving lamp |
Oct. 25, 2005 |
| 6956337 |
Temperature-to-color converter and conversion method |
Oct. 18, 2005 |
| RE38837 |
Efficient power transfer in electronic ballast |
Oct. 18, 2005 |
| 6954036 |
Circuit having global feedback for promoting linear operation |
Oct. 11, 2005 |
| 6954038 |
Electronic ballast for a discharge lamp |
Oct. 11, 2005 |
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