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Class Information
Number: 315/291
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation
Description: Systems which include means to regulate the current and/or voltage supplied to the load device.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7482760 |
Method and apparatus for scaling the average current supply to light-emitting elements |
Jan. 27, 2009 |
| 7479743 |
Vehicle lighting apparatus |
Jan. 20, 2009 |
| 7479742 |
Discharge lamp lighting circuit |
Jan. 20, 2009 |
| 7479741 |
Method and device for supplying power to LEDs |
Jan. 20, 2009 |
| 7479740 |
Module for parallel lighting and balancer coil for discharge lamp |
Jan. 20, 2009 |
| 7479738 |
Drive circuit for light emitting diode |
Jan. 20, 2009 |
| 7477025 |
Power control circuit for adjusting light |
Jan. 13, 2009 |
| 7477023 |
Inverter circuit and backlight assembly having the same |
Jan. 13, 2009 |
| 7477022 |
System and method for driving a multi-lamp |
Jan. 13, 2009 |
| 7477021 |
Non-discontinuous neon power supply with high power factor |
Jan. 13, 2009 |
| 7477020 |
Electronic ballast having a reduced reverse voltage at the start |
Jan. 13, 2009 |
| 7474064 |
Lamp driving circuit for a discharge lamp and a control method thereof |
Jan. 6, 2009 |
| 7474063 |
Anti-cycling control system for luminaires |
Jan. 6, 2009 |
| 7474062 |
Decoupling circuits |
Jan. 6, 2009 |
| 7474059 |
Fluorescent ballast with fiber optic and IR control |
Jan. 6, 2009 |
| 7471287 |
Light source driving circuit for driving light emitting diode components and driving method thereof |
Dec. 30, 2008 |
| 7471051 |
Advanced low voltage lighting system |
Dec. 30, 2008 |
| 7471050 |
Organic EL drive circuit and organic EL display device |
Dec. 30, 2008 |
| 7471048 |
Synchronous light emitting diode lamp string |
Dec. 30, 2008 |
| 7471047 |
Plasma television set |
Dec. 30, 2008 |
| 7469940 |
Discharge lamp lighting device, lighting system and method |
Dec. 30, 2008 |
| 7468586 |
Ballast with arc protection circuit |
Dec. 23, 2008 |
| 7466084 |
Digital interface with potentiometer |
Dec. 16, 2008 |
| 7466083 |
Protective device for vehicle electronic apparatus |
Dec. 16, 2008 |
| 7462996 |
Method of operating a lamp with a power controller having current limited RMS regulated output |
Dec. 9, 2008 |
| 7462994 |
LED illumination apparatus |
Dec. 9, 2008 |
| 7462993 |
Dome light |
Dec. 9, 2008 |
| 7462992 |
Starter circuit having regulated starter voltage |
Dec. 9, 2008 |
| 7460102 |
Control module and method for controlling backlight module of LCD |
Dec. 2, 2008 |
| 7459866 |
DC to DC conversion circuit with variable output voltage |
Dec. 2, 2008 |
| 7459865 |
Cold cathode tube lighting device, tube current detecting circuit used in cold cathode tube lighting device, tube current controlling method and integrated circuit |
Dec. 2, 2008 |
| 7459864 |
Power control methods and apparatus |
Dec. 2, 2008 |
| 7456589 |
Light output modulation for data transmission |
Nov. 25, 2008 |
| 7456587 |
Digital controlled light source driving apparatus |
Nov. 25, 2008 |
| 7456586 |
Voltage controlled light source and image presentation device using the same |
Nov. 25, 2008 |
| 7456585 |
Optical element driving circuit |
Nov. 25, 2008 |
| 7456584 |
Light emitting element driving apparatus, method of driving a light emitting element and computer readable recording medium |
Nov. 25, 2008 |
| 7456583 |
Electrical circuit with dual stage resonant circuit for igniting a gas discharge lamp |
Nov. 25, 2008 |
| 7456578 |
Circuit arrangement having protective circuit and modification apparatus |
Nov. 25, 2008 |
| 7453217 |
Marketplace illumination methods and apparatus |
Nov. 18, 2008 |
| 7453216 |
Current resonance type inverter circuit and power controlling method |
Nov. 18, 2008 |
| 7449846 |
Ballast for a gas discharge lamp and a method of controlling this ballast |
Nov. 11, 2008 |
| 7449845 |
Backlight assembly and display apparatus having the same |
Nov. 11, 2008 |
| 7449844 |
Digital power controller for gas discharge devices and the like |
Nov. 11, 2008 |
| 7449841 |
Charge limited high voltage switch circuits |
Nov. 11, 2008 |
| 7446488 |
Metal halide lamp ballast controlled by remote enable switched bias supply |
Nov. 4, 2008 |
| 7446487 |
Dimming mode selecting circuit and driving device using the same |
Nov. 4, 2008 |
| 7446486 |
High efficiency off-line linear power supply |
Nov. 4, 2008 |
| 7446485 |
Multi-lamp driving system |
Nov. 4, 2008 |
| 7446483 |
Backlight light source drive device |
Nov. 4, 2008 |
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