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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 |
| 6956408 |
Drive device for a light-emitting component |
Oct. 18, 2005 |
| 6954038 |
Electronic ballast for a discharge lamp |
Oct. 11, 2005 |
| 6954039 |
Driving circuit for light emitting diodes |
Oct. 11, 2005 |
| 6952085 |
Continuous mode ballast with pulsed operation |
Oct. 4, 2005 |
| 6949885 |
Discharge lamp lighting device and lighting apparatus |
Sep. 27, 2005 |
| 6949886 |
Dynamic displays |
Sep. 27, 2005 |
| 6949888 |
Dimming ballast control IC with flash suppression circuit |
Sep. 27, 2005 |
| 6949889 |
Wide input voltage range light emitting diode driver |
Sep. 27, 2005 |
| 6949891 |
Light quantity adjusting method, light quantity adjusting apparatus, and image forming apparatus |
Sep. 27, 2005 |
| 6949893 |
Television receiver and cold-cathode tube dimmer |
Sep. 27, 2005 |
| 6946805 |
Controller for a light display |
Sep. 20, 2005 |
| 6946806 |
Method and apparatus for controlling minimum brightness of a fluorescent lamp |
Sep. 20, 2005 |
| 6946807 |
Lamp lighting apparatus for a discharge lamp |
Sep. 20, 2005 |
| 6947024 |
Apparatus and driving lamp and liquid crystal display device having the same |
Sep. 20, 2005 |
| 6943503 |
Lighting method and apparatus for lighting a high pressure discharge lamp and high pressure discharge lamp apparatus with reduced load |
Sep. 13, 2005 |
| 6943505 |
Driving device for a light-emitting component and a method for driving a light-emitting component |
Sep. 13, 2005 |
| 6940230 |
Modular lamp controller |
Sep. 6, 2005 |
| 6940234 |
Electric arc discharge protection device |
Sep. 6, 2005 |
| 6936978 |
Methods and apparatus for remotely controlled illumination of liquids |
Aug. 30, 2005 |
| 6936979 |
Frequency-modulated dimming control system of discharge lamp |
Aug. 30, 2005 |
| 6933682 |
Method for operating fluorescent lamps and ballast |
Aug. 23, 2005 |
| 6930453 |
Power supply device for energizing discharge lamp |
Aug. 16, 2005 |
| 6924604 |
Method of operating a discharge lamp system and a discharge lamp system using a combination radial and longitudinal acoustic mode to reduce vertical segregation |
Aug. 2, 2005 |
| 6924606 |
Low-visual noise, jitterized pulse width modulation brightness control circuit |
Aug. 2, 2005 |
| 6922023 |
Multiple-lamp backlight inverter |
Jul. 26, 2005 |
| 6922024 |
LED lamp |
Jul. 26, 2005 |
| 6919694 |
Fixed operating frequency inverter for cold cathode fluorescent lamp having strike frequency adjusted by voltage to current phase relationship |
Jul. 19, 2005 |
| 6919695 |
Overvoltage protection for hid lamp ballast |
Jul. 19, 2005 |
| 6919696 |
Device for operating a high-pressure discharge lamp |
Jul. 19, 2005 |
| 6919697 |
Power supply device and liquid crystal display device using the same |
Jul. 19, 2005 |
| 6917164 |
Light signaling device related to the operating state of a system |
Jul. 12, 2005 |
| 6917166 |
Vehicular lamp |
Jul. 12, 2005 |
| 6914387 |
Driving circuit for a light emitting element |
Jul. 5, 2005 |
| 6914389 |
Direct-type back light module with photo sensors |
Jul. 5, 2005 |
| 6914393 |
Method and device for lighting high pressure discharge lamps |
Jul. 5, 2005 |
| 6914394 |
Supply circuit, in particular for a discharge lamp |
Jul. 5, 2005 |
| 6914395 |
Electronic ballast for a high-pressure discharge lamp |
Jul. 5, 2005 |
| 6914920 |
Method for energy stabilization of gas discharged pumped in selected impulse following driven beam sources |
Jul. 5, 2005 |
| 6911781 |
Light emitting device and production system of the same |
Jun. 28, 2005 |
| 6911788 |
Electronic ballast of high power factor for compact fluorescent lamp |
Jun. 28, 2005 |
| 6911789 |
Power supply for a hot-filament cathode |
Jun. 28, 2005 |
| 6911790 |
Multiplexed high voltage DC-AC driver |
Jun. 28, 2005 |
| 6909238 |
Back-lighted control and protection device for multi-lamp LCD |
Jun. 21, 2005 |
| 6909245 |
Ballast circuit for control of lamp power |
Jun. 21, 2005 |
| 6909246 |
Electronic ballast and electronic transformer |
Jun. 21, 2005 |
| 6909248 |
Deuterium arc lamp assembly with an elapsed time indicator system and a method thereof |
Jun. 21, 2005 |
| 6909249 |
Switching constant-current power supply |
Jun. 21, 2005 |
| 6909250 |
Apparatus and method for operating a portable xenon arc searchlight |
Jun. 21, 2005 |
| 6909377 |
Illumination device with light emitting diodes (LEDs), method of illumination and method for image recording with such an LED illumination device |
Jun. 21, 2005 |
| 6906475 |
Fluorescent lamp and high intensity discharge lamp with improved luminous efficiency |
Jun. 14, 2005 |
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