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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 |
| 7312589 |
Driver control circuit and method for cold cathode fluorescent lamp |
Dec. 25, 2007 |
| 7312587 |
Control device for high intensity discharge bulb and method of controlling high intensity discharge bulb |
Dec. 25, 2007 |
| 7309963 |
Smoothing circuit for improving EMC |
Dec. 18, 2007 |
| 7307390 |
Primary side constant output voltage controller |
Dec. 11, 2007 |
| 7304442 |
Three component protective head gear powered by a rechargeable battery |
Dec. 4, 2007 |
| 7304438 |
Method and apparatus for preventing instabilities in radio-frequency plasma processing |
Dec. 4, 2007 |
| 7301291 |
Power controller having current limited RMS regulated output |
Nov. 27, 2007 |
| 7301290 |
Brightness control device of light bulb module |
Nov. 27, 2007 |
| 7301289 |
Discharge lamp lighting control device |
Nov. 27, 2007 |
| 7301288 |
LED buck regulator control IC |
Nov. 27, 2007 |
| 7298098 |
Intellectual lamp unit able to be installed on a conventional lamp socket controlled by a wall switch |
Nov. 20, 2007 |
| 7298097 |
Driver system and method with multi-function protection for cold-cathode fluorescent lamp and external-electrode fluorescent lamp |
Nov. 20, 2007 |
| 7298096 |
Circuit and method for sensing open-circuit lamp of a backlight unit and display device with circuit for sensing open-circuit lamp of backlight unit |
Nov. 20, 2007 |
| 7298095 |
Discharge lamp ballast apparatus |
Nov. 20, 2007 |
| 7295176 |
LED driver with constant current offset unit |
Nov. 13, 2007 |
| 7294979 |
Light source module with temperature sensor |
Nov. 13, 2007 |
| 7294976 |
Split power supply subsystem with isolated voltage supplies to satisfy a predetermined power limit |
Nov. 13, 2007 |
| 7294975 |
Method for controlling an inverter under altering voltage |
Nov. 13, 2007 |
| 7294974 |
Fixed operating frequency inverter for cold cathode fluorescent lamp having strike frequency adjusted by voltage to current phase relationship |
Nov. 13, 2007 |
| 7291993 |
Method for driving a fluorescent lamp and an inverter circuit for performing such a method |
Nov. 6, 2007 |
| 7291992 |
Load failure protection circuit and discharge lamp driving apparatus |
Nov. 6, 2007 |
| 7291991 |
Matrix inverter for driving multiple discharge lamps |
Nov. 6, 2007 |
| 7288903 |
Driving device of light source for display device |
Oct. 30, 2007 |
| 7288901 |
Ballast with arc protection circuit |
Oct. 30, 2007 |
| 7288900 |
Illumination system having at least two light sources, and a method for operating such an illumination system |
Oct. 30, 2007 |
| 7288896 |
Device for measuring and correcting the luminance of a display |
Oct. 30, 2007 |
| 7286123 |
LED driver circuit having temperature compensation |
Oct. 23, 2007 |
| 7285925 |
Backlight module control circuit of multi-lamp display device |
Oct. 23, 2007 |
| 7285923 |
Display apparatus and driving pulse control method thereof |
Oct. 23, 2007 |
| 7285922 |
Driving apparatus for CCFL |
Oct. 23, 2007 |
| 7285920 |
Method and circuit arrangement for operating a high-pressure gas discharge lamp |
Oct. 23, 2007 |
| 7282871 |
Backlight inverter for inductively detecting current |
Oct. 16, 2007 |
| 7282870 |
Driving apparatus for CCFL |
Oct. 16, 2007 |
| 7282863 |
Auxiliary quartz lamp lighting system for electronic high intensity discharge lamp ballasts |
Oct. 16, 2007 |
| 7279958 |
Synthesized resonation for an EL driver circuit |
Oct. 9, 2007 |
| 7279854 |
Charge pump interface circuit |
Oct. 9, 2007 |
| 7279853 |
Fluorescent lamp dimmer control |
Oct. 9, 2007 |
| 7279852 |
Apparatus and method for striking a fluorescent lamp |
Oct. 9, 2007 |
| 7276863 |
LED array driving apparatus and backlight driving apparatus using the same |
Oct. 2, 2007 |
| 7275835 |
Projector for changing driving frequency for driving light source lamp within allowable frequency range |
Oct. 2, 2007 |
| 7274159 |
Backlight for a display device |
Sep. 25, 2007 |
| 7274158 |
System for driving plural lamps |
Sep. 25, 2007 |
| 7274154 |
CFL ballast with passive valley fill and crest factor control |
Sep. 25, 2007 |
| 7274150 |
Lighting control circuit for vehicle lighting equipment |
Sep. 25, 2007 |
| 7271552 |
Ballast circuit for operating a gas discharge lamp |
Sep. 18, 2007 |
| 7271550 |
Dimmer circuit arrangement |
Sep. 18, 2007 |
| 7270790 |
Sterilizer monitoring and controlling system and method |
Sep. 18, 2007 |
| 7265498 |
Dimmer control system and controlling method thereof |
Sep. 4, 2007 |
| 7262752 |
Series led backlight control circuit |
Aug. 28, 2007 |
| 7262562 |
Method for driving a fluorescent lamp and an inverter circuit for performing such a method |
Aug. 28, 2007 |
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