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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 |
| 7368977 |
Dimming method and system thereof |
May. 6, 2008 |
| 7368884 |
DC/DC converter |
May. 6, 2008 |
| 7368883 |
Apparatus for end-of-life detection of fluorescent lamps |
May. 6, 2008 |
| 7368882 |
Self-contained, self-snubbed, HID dimming module that exhibits non-zero crossing detection switching |
May. 6, 2008 |
| 7368881 |
Discharge lamp lighting apparatus and lamp system using the lighting apparatus |
May. 6, 2008 |
| 7368879 |
Pendulum resonant converter and method |
May. 6, 2008 |
| 7365951 |
Discharge lamp lighting device, lighting system and method |
Apr. 29, 2008 |
| 7365502 |
Device for driving light sources |
Apr. 29, 2008 |
| 7365500 |
Display device having lamp control circuit |
Apr. 29, 2008 |
| 7362059 |
Driving unit of fluorescent lamp and method for driving the same |
Apr. 22, 2008 |
| 7362058 |
Method and device for controlling the light intensity in a multi-lamp illumination device for a display panel |
Apr. 22, 2008 |
| 7358687 |
Method for driving backlight unit |
Apr. 15, 2008 |
| 7358686 |
Method and device for driving a gas discharge lamp |
Apr. 15, 2008 |
| 7358683 |
Automatic PWM controlled driver circuit and method |
Apr. 15, 2008 |
| 7358682 |
Discharge lamp lighting apparatus |
Apr. 15, 2008 |
| 7358680 |
Bistate HID operation |
Apr. 15, 2008 |
| 7358679 |
Dimmable LED-based MR16 lighting apparatus and methods |
Apr. 15, 2008 |
| 7355356 |
Circuit arrangement and method for detecting a crest factor of a lamp current or a lamp operating voltage of an electric lamp |
Apr. 8, 2008 |
| 7355355 |
Discharge lamp lighting apparatus |
Apr. 8, 2008 |
| 7355354 |
Method for starting a discharge lamp using high energy initial pulse |
Apr. 8, 2008 |
| 7355353 |
Illumination control circuit |
Apr. 8, 2008 |
| 7355352 |
Circuit and method for dynamic adjustment of operation conditions of a gas discharge lamp |
Apr. 8, 2008 |
| 7355351 |
Circuit arrangement having a converter without a transformer but with an inductor for the pulsed operation of dielectric barrier discharge lamps |
Apr. 8, 2008 |
| 7352140 |
Master-slave control architecture for inverters |
Apr. 1, 2008 |
| 7352139 |
Multiple lamp ballast control circuit |
Apr. 1, 2008 |
| 7352138 |
Methods and apparatus for providing power to lighting devices |
Apr. 1, 2008 |
| 7352137 |
Controlling color temperature of lighting fixture |
Apr. 1, 2008 |
| 7352136 |
DC-DC converter with reduced surge voltage and an electronic ballast including the converter for a discharge lamp |
Apr. 1, 2008 |
| 7352135 |
Lighting controller for lighting device for vehicle |
Apr. 1, 2008 |
| 7348960 |
Backlight device and method for controlling light source brightness thereof |
Mar. 25, 2008 |
| 7348737 |
Lighting circuit for high-pressure discharge lamp |
Mar. 25, 2008 |
| 7348736 |
Methods and apparatus for providing workspace lighting and facilitating workspace customization |
Mar. 25, 2008 |
| 7348735 |
Lamp driver |
Mar. 25, 2008 |
| 7345434 |
Discharge lamp lighting apparatus and luminaire |
Mar. 18, 2008 |
| 7345433 |
Reversible polarity LED lamp module using current regulator and method therefor |
Mar. 18, 2008 |
| 7345432 |
Inverter circuit for lighting backlight of liquid crystal display and method for driving the same |
Mar. 18, 2008 |
| 7342365 |
Systems and methods for reducing input current in photoflash chargers |
Mar. 11, 2008 |
| 7342364 |
Light source |
Mar. 11, 2008 |
| 7342363 |
Methods and apparatus for an improved amplifier for driving a dynamic load |
Mar. 11, 2008 |
| 7342362 |
Full-bridge soft switching inverter and driving method thereof |
Mar. 11, 2008 |
| 7339332 |
Chroma compensated backlit display |
Mar. 4, 2008 |
| 7339331 |
Dimmer circuit with improved ripple control |
Mar. 4, 2008 |
| 7339330 |
Methods and circuits for instant hot restart of high intensity discharge lamps |
Mar. 4, 2008 |
| 7339325 |
Series wired light string with unidirectional resistive shunts |
Mar. 4, 2008 |
| 7339323 |
Serial powering of an LED string |
Mar. 4, 2008 |
| 7339322 |
Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps |
Mar. 4, 2008 |
| 7336195 |
Light emitting array apparatus and method of manufacture |
Feb. 26, 2008 |
| 7336041 |
Automatic light dimmer for electronic and magnetic ballasts (fluorescent or HID) |
Feb. 26, 2008 |
| 7336040 |
Single-channel comprehensive protection circuit |
Feb. 26, 2008 |
| 7336037 |
Intelligent electrical switching device |
Feb. 26, 2008 |
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