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Class Information
Number: 315/246
Name: Electric lamp and discharge devices: systems > Pulsating or a.c. supply
Description: Systems wherein the load devices in the system is supplied with either pulsating or alternating current or potential (but not both).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8120201 |
LED vehicle lighting apparatus |
Feb. 21, 2012 |
| 8118447 |
LED lighting apparatus with swivel connection |
Feb. 21, 2012 |
| 8115404 |
High pressure discharge lamp lighting device and luminaire |
Feb. 14, 2012 |
| 8115406 |
Fluorescent lamp driver circuit |
Feb. 14, 2012 |
| 8111003 |
Backlight assembly, display apparatus having the same and control method thereof |
Feb. 7, 2012 |
| 8110999 |
Light source apparatus |
Feb. 7, 2012 |
| 8102128 |
Driving method and driving device for discharge lamp, light source device, and image display device |
Jan. 24, 2012 |
| 8098018 |
Pulse dimming circuit and the method thereof |
Jan. 17, 2012 |
| 8093823 |
Light sources incorporating light emitting diodes |
Jan. 10, 2012 |
| 8093839 |
Method and apparatus for driving CCFL at low burst duty cycle rates |
Jan. 10, 2012 |
| 8093832 |
Backlight unit with reduced inverter noise and liquid crystal display apparatus having the same |
Jan. 10, 2012 |
| 8089214 |
Driving method and driving device for discharge lamp, light source device, and image display device |
Jan. 3, 2012 |
| 8084956 |
Apparatus and method for automatically trimming an output parameter of an electronic ballast |
Dec. 27, 2011 |
| 8084962 |
Driving circuit for LED |
Dec. 27, 2011 |
| 8080946 |
Flat discharge lamp and production method thereof |
Dec. 20, 2011 |
| 8080948 |
Apparatus and method for trimming an output parameter of an electronic ballast |
Dec. 20, 2011 |
| 8076861 |
Driving method and driving device for discharge lamp, light source device, and image display device |
Dec. 13, 2011 |
| 8076863 |
Back light module |
Dec. 13, 2011 |
| 8072157 |
Circuit for driving LED |
Dec. 6, 2011 |
| 8067926 |
Power supply for a load control device |
Nov. 29, 2011 |
| 8067893 |
Intelligent light fixture facilitating universal light bulb |
Nov. 29, 2011 |
| 8063574 |
Light emitting diode illuminating device |
Nov. 22, 2011 |
| 8054000 |
Flash lamp irradiation apparatus |
Nov. 8, 2011 |
| 8049431 |
Apparatus and method for driving a light source, and display apparatus using the same |
Nov. 1, 2011 |
| 8049436 |
Dimmer and lighting apparatus |
Nov. 1, 2011 |
| 8044605 |
High-pressure discharge lamp with an improved starting capability, as well as a high-voltage pulse generator |
Oct. 25, 2011 |
| 8030853 |
Circuit and method for improving the performance of a light emitting diode (LED) driver |
Oct. 4, 2011 |
| 8030856 |
Discharge lamp lighting device |
Oct. 4, 2011 |
| 8018177 |
Dimming buck type LED driving apparatus |
Sep. 13, 2011 |
| 8018175 |
LED regulation circuit and method |
Sep. 13, 2011 |
| 8018178 |
Light source apparatus, projector, and light source apparatus drive method |
Sep. 13, 2011 |
| 8018172 |
Method and apparatus for LED dimming |
Sep. 13, 2011 |
| 8004210 |
LED replacement for low voltage lamps |
Aug. 23, 2011 |
| 7999487 |
Electronic circuit for driving a diode load with a predetermined average current |
Aug. 16, 2011 |
| 7999482 |
Lighting of discharge lamp by frequency control |
Aug. 16, 2011 |
| 7994730 |
Pulse width modulation (PWM) closed loop LED current driver in an embedded system |
Aug. 9, 2011 |
| 7986103 |
Method for driving a lamp in a lighting system based on a goal energizing level of the lamp and a control apparatus therefor |
Jul. 26, 2011 |
| 7982402 |
Integrated igniter base for ceramic metal halide light source |
Jul. 19, 2011 |
| 7981526 |
Display device |
Jul. 19, 2011 |
| 7977888 |
Direct coupled balancer drive for floating lamp structure |
Jul. 12, 2011 |
| 7969430 |
Voltage controlled backlight driver |
Jun. 28, 2011 |
| 7965047 |
Fluorescent lamp driving circuit |
Jun. 21, 2011 |
| 7960918 |
Electronic device and light emission control method for electronic device |
Jun. 14, 2011 |
| 7956315 |
Discharge lamp lighting device, method of controlling discharge lamp lighting device, and projector |
Jun. 7, 2011 |
| 7948191 |
Parallel transformer with output side electrical decoupling |
May. 24, 2011 |
| 7948187 |
Electronically controlling acoustic energy from piezoelectric transformers |
May. 24, 2011 |
| 7946715 |
Light source and projector |
May. 24, 2011 |
| 7938548 |
Projection device |
May. 10, 2011 |
| 7936131 |
AC power feedback control device |
May. 3, 2011 |
| 7936129 |
Lighting conversion system |
May. 3, 2011 |
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