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Class Information
Number: 315/309
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation > Automatic regulation > Thermal responsive regulator
Description: Systems, wherein the regulating means is responsive to a thermal condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626346 |
LED circuit with current control |
Dec. 1, 2009 |
| 7619362 |
Outer jacket leak detection method and ballast implementing the method |
Nov. 17, 2009 |
| 7615934 |
High efficiency resonant ballast |
Nov. 10, 2009 |
| 7615941 |
Apparatus and method for maximizing the longevity of arc tube bulbs during pulsing operation |
Nov. 10, 2009 |
| 7612506 |
Method for controlling light-emission of a light-emitting diode light source |
Nov. 3, 2009 |
| 7595595 |
System and method for current and/or temperature control of light fixtures |
Sep. 29, 2009 |
| 7538498 |
Driving circuit of surface light source and method of driving the same |
May. 26, 2009 |
| 7538499 |
Method and apparatus for controlling thermal stress in lighting devices |
May. 26, 2009 |
| 7521872 |
Integrated lamp with feedback and wireless control |
Apr. 21, 2009 |
| 7495398 |
Discharge lamp lighting apparatus |
Feb. 24, 2009 |
| 7449846 |
Ballast for a gas discharge lamp and a method of controlling this ballast |
Nov. 11, 2008 |
| 7446489 |
Apparatus and method of driving light source for display device |
Nov. 4, 2008 |
| 7439683 |
Backlighting system for display screen |
Oct. 21, 2008 |
| 7436131 |
Thermal protection for lamp ballasts |
Oct. 14, 2008 |
| 7432662 |
Circuit arrangement and method for operating at least one lamp |
Oct. 7, 2008 |
| 7427838 |
Light source controlling circuit and portable electronic apparatus |
Sep. 23, 2008 |
| 7420338 |
Ballast control IC with minimal internal and external components |
Sep. 2, 2008 |
| 7414370 |
Increasing reliability of operation of light emitting diode arrays at higher operating temperatures and its use in the lamps of automobiles |
Aug. 19, 2008 |
| 7397201 |
DC digital starting device |
Jul. 8, 2008 |
| 7397204 |
Starting circuit for electric discharge lamp |
Jul. 8, 2008 |
| 7396145 |
Backlight unit and method for equalizing brightness thereof |
Jul. 8, 2008 |
| 7372217 |
Device for driving a light source module |
May. 13, 2008 |
| 7372211 |
Cold cathode tube lighting device and driving method and integrated circuit to be used in same |
May. 13, 2008 |
| 7355348 |
Ballast for a discharge lamp having a continuous-operation control circuit |
Apr. 8, 2008 |
| 7352135 |
Lighting controller for lighting device for vehicle |
Apr. 1, 2008 |
| 7336042 |
Display apparatus employing a field emission device and brightness control device and method therefor |
Feb. 26, 2008 |
| 7333313 |
Multiplexed temperature sensing circuit for HID lamp ballast |
Feb. 19, 2008 |
| 7330002 |
Circuit for controlling LED with temperature compensation |
Feb. 12, 2008 |
| 7322718 |
Multichip LED lighting device |
Jan. 29, 2008 |
| 7307386 |
Process for operating a discharge lamp |
Dec. 11, 2007 |
| 7294979 |
Light source module with temperature sensor |
Nov. 13, 2007 |
| 7291982 |
Method and apparatus for the closed loop and open loop control of filament heating for lamps |
Nov. 6, 2007 |
| 7288902 |
Color variations in a dimmable lighting device with stable color temperature light sources |
Oct. 30, 2007 |
| 7286123 |
LED driver circuit having temperature compensation |
Oct. 23, 2007 |
| 7256549 |
Three electrode arc-discharge lamp |
Aug. 14, 2007 |
| 7208713 |
Light source unit and display device having luminance control based upon detected light values |
Apr. 24, 2007 |
| 7193374 |
Planar light source device and liquid crystal display apparatus having the same |
Mar. 20, 2007 |
| 7190127 |
Shutdown circuit |
Mar. 13, 2007 |
| 7183727 |
Optical and temperature feedbacks to control display brightness |
Feb. 27, 2007 |
| 7183714 |
Ballast with relamping circuitry |
Feb. 27, 2007 |
| 7176640 |
Device for controlling light emission rates of a backlight |
Feb. 13, 2007 |
| 7129856 |
Illuminated sign for traffic control and method for functional monitoring of such a sign |
Oct. 31, 2006 |
| 7119503 |
Temperature-to-color converter and conversion method |
Oct. 10, 2006 |
| 7084587 |
Apparatus and method for control of high intensity discharge lighting |
Aug. 1, 2006 |
| 7067995 |
LED lighting system |
Jun. 27, 2006 |
| 7042434 |
Lamp drive apparatus and drive method of a notebook computer |
May. 9, 2006 |
| 7034473 |
Phase-control power controller for converting a line voltage to an RMS load voltage |
Apr. 25, 2006 |
| 7034465 |
Device for operating discharge lamps by means of a transformer with four windings, and a corresponding method |
Apr. 25, 2006 |
| 7019467 |
Thermally-protected ballast for high-intensity-discharge lamps |
Mar. 28, 2006 |
| 6987363 |
Emergency ballast for compact fluorescent lamp with battery heater |
Jan. 17, 2006 |
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