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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 |
| 7405523 |
Remote control of lighting |
Jul. 29, 2008 |
| 7405522 |
Multiple failure detection shutdown protection circuit for an electronic ballast |
Jul. 29, 2008 |
| 7402960 |
LED-based lamp apparatus |
Jul. 22, 2008 |
| 7402959 |
Phase sampling protection device |
Jul. 22, 2008 |
| 7402958 |
Display power partitioning |
Jul. 22, 2008 |
| 7402956 |
Ballast with zero voltage switching converter |
Jul. 22, 2008 |
| 7400310 |
Pulse signal drive circuit |
Jul. 15, 2008 |
| 7400100 |
Discharge-lamp lighting apparatus and projector |
Jul. 15, 2008 |
| 7400095 |
Portable electric lighting fixture |
Jul. 15, 2008 |
| 7397203 |
Fluorescent ballast with unique dimming control |
Jul. 8, 2008 |
| 7397202 |
Brightness control circuit and backlight control module |
Jul. 8, 2008 |
| 7397201 |
DC digital starting device |
Jul. 8, 2008 |
| 7397200 |
Device for the control of fluorescent lamps in a lighting arrangement |
Jul. 8, 2008 |
| 7397199 |
Discharge lamp lighting device |
Jul. 8, 2008 |
| 7397198 |
Fluorescent lamp driver and liquid crystal display apparatus |
Jul. 8, 2008 |
| 7397195 |
Apparatus of light source and adjustable control circuit for LEDs |
Jul. 8, 2008 |
| 7394212 |
Inverter and inverter unit thereof |
Jul. 1, 2008 |
| 7394211 |
Step down power management system for LED flashlight |
Jul. 1, 2008 |
| 7394210 |
System and method for controlling luminaires |
Jul. 1, 2008 |
| 7394208 |
Simplified electronic ballast circuit and method of operation |
Jul. 1, 2008 |
| 7394207 |
Circuit arrangement having a full bridge with switching load relief for operating lamps |
Jul. 1, 2008 |
| 7391337 |
Interactive LED display network for retail environment |
Jun. 24, 2008 |
| 7391170 |
Device for driving light source module |
Jun. 24, 2008 |
| 7391169 |
System and method for analog voltage processing in wide range for cold-cathode fluorescent lamp |
Jun. 24, 2008 |
| 7391168 |
Digital control of electronic ballasts using AC power lines as a communication medium |
Jun. 24, 2008 |
| 7391167 |
Backlight assembly, display device and driving apparatus of light source for display device |
Jun. 24, 2008 |
| 7391165 |
Discharge lamp lighting control device |
Jun. 24, 2008 |
| 7388337 |
Fluorescent lamp lighting apparatus and lighting control system |
Jun. 17, 2008 |
| 7385361 |
Ballast for high-pressure discharge lamp and method of operating the same |
Jun. 10, 2008 |
| 7385357 |
Inductively coupled ballast circuit |
Jun. 10, 2008 |
| 7384163 |
Rotation knob type light-regulating lamp socket |
Jun. 10, 2008 |
| 7382100 |
Lighting control device having improved long fade off |
Jun. 3, 2008 |
| 7382099 |
Striation control for current fed electronic ballast |
Jun. 3, 2008 |
| 7382093 |
Device for operation of a discharge lamp of the short arc type |
Jun. 3, 2008 |
| 7378825 |
DC/DC converter |
May. 27, 2008 |
| 7378807 |
Drive circuit for a fluorescent lamp with a diagnosis circuit, and method for diagnosis of a fluorescent lamp |
May. 27, 2008 |
| 7378806 |
Output short circuit protection for electronic ballasts |
May. 27, 2008 |
| 7378805 |
Single-stage digital power converter for driving LEDs |
May. 27, 2008 |
| 7378804 |
Ballast for a discharge lamp with integrated control circuit for controlling switching element of dc power supply and inverter circuit |
May. 27, 2008 |
| 7375951 |
Load control device having a split enclosure |
May. 20, 2008 |
| 7375477 |
Cold cathode fluorescent lamp driving system |
May. 20, 2008 |
| 7375476 |
Lighting device having a circuit including a plurality of light emitting diodes, and methods of controlling and calibrating lighting devices |
May. 20, 2008 |
| 7375475 |
Lamp containing power controller having current limited RMS regulated output |
May. 20, 2008 |
| 7375474 |
Apparatus and method for driving backlight |
May. 20, 2008 |
| 7375472 |
Highly efficient driving of photoflash diodes using low and fixed voltage drop-out current sink |
May. 20, 2008 |
| 7372441 |
Burst pulse circuit for signal lights and method |
May. 13, 2008 |
| 7372217 |
Device for driving a light source module |
May. 13, 2008 |
| 7372216 |
Constant brightness control for electro-luminescent lamp |
May. 13, 2008 |
| 7372215 |
Lamp ballast for circuit driving multiple parallel lamps |
May. 13, 2008 |
| 7372214 |
Apparatus and method for driving lamp of liquid crystal display device |
May. 13, 2008 |
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