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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 |
| 7193375 |
Electronic ballast having a pump circuit for a discharge lamp having preheatable electrodes |
Mar. 20, 2007 |
| 7193371 |
Electronic ballast having timing unit correction |
Mar. 20, 2007 |
| 7190127 |
Shutdown circuit |
Mar. 13, 2007 |
| 7187140 |
Lamp current control using profile synthesizer |
Mar. 6, 2007 |
| 7187137 |
Ballast with output ground-fault protection |
Mar. 6, 2007 |
| 7187136 |
Method and circuit for regulating power in a high intensity discharge lamp |
Mar. 6, 2007 |
| 7187135 |
High intensity discharge lamp electronics controller |
Mar. 6, 2007 |
| 7187132 |
Ballast with filament heating control circuit |
Mar. 6, 2007 |
| 7183725 |
Backlight inverter system and control method for starting the same |
Feb. 27, 2007 |
| 7180251 |
Electronic power circuit for gas discharge lamps |
Feb. 20, 2007 |
| 7180247 |
Load control circuit |
Feb. 20, 2007 |
| 7177131 |
Control circuit of power supply with selectable current-limiting modes |
Feb. 13, 2007 |
| 7176639 |
Electronic ballast and controlling method thereof |
Feb. 13, 2007 |
| 7176638 |
Discharge lamp lighting circuit |
Feb. 13, 2007 |
| 7176637 |
Rare gas fluorescent lamp apparatus |
Feb. 13, 2007 |
| 7176635 |
Apparatus and method for compensating for reduced light output of a light source having a lumen depreciation characteristic over its operational life |
Feb. 13, 2007 |
| 7173383 |
Lighting apparatus having a plurality of independently controlled sources of different colors of light |
Feb. 6, 2007 |
| 7167777 |
Wireless internet lighting control system |
Jan. 23, 2007 |
| 7166971 |
Circuit arrangement for operating a high pressure discharge lamp |
Jan. 23, 2007 |
| 7166970 |
Lighting control device having improved long fade off |
Jan. 23, 2007 |
| 7164237 |
Circuit arrangement for operating discharge lamps |
Jan. 16, 2007 |
| 7161309 |
Protecting a cold cathode fluorescent lamp from a large transient current when voltage supply transitions from a low to a high voltage |
Jan. 9, 2007 |
| 7161308 |
High-voltage discharge lamp operating device |
Jan. 9, 2007 |
| 7161307 |
Power factor correction apparatus with embedded DC--DC converter |
Jan. 9, 2007 |
| 7161305 |
Method and apparatus for single-ended conversion of DC to AC power for driving discharge lamps |
Jan. 9, 2007 |
| 7157865 |
Circuit for driving cold cathode tubes and external electrode fluorescent lamps |
Jan. 2, 2007 |
| 7157863 |
Device and method for the multi-phase operation of a gas discharge or metal vapor lamp |
Jan. 2, 2007 |
| 7157861 |
Push-pull inverter circuit |
Jan. 2, 2007 |
| 7154234 |
Low voltage regulator for in-line powered low voltage power supply |
Dec. 26, 2006 |
| 7154232 |
Ballast control IC with multi-function feedback sense |
Dec. 26, 2006 |
| 7154229 |
Electronic ballast with load shed circuit |
Dec. 26, 2006 |
| 7148633 |
DC/AC inverter |
Dec. 12, 2006 |
| 7148628 |
Photosensitive control with dynamic calibration |
Dec. 12, 2006 |
| 7141941 |
Staggering switching signals for multiple cold cathode fluorescent lamp backlighting system to reduce electromagnetic interference |
Nov. 28, 2006 |
| 7141939 |
Power supply circuit that is stable against sudden load change |
Nov. 28, 2006 |
| 7141938 |
Power control device, apparatus and method of controlling the power supplied to a discharge lamp |
Nov. 28, 2006 |
| 7141936 |
Driving circuit for light emitting diode |
Nov. 28, 2006 |
| 7135825 |
LED power supply device |
Nov. 14, 2006 |
| 7132803 |
High efficiency 4-lamp instant start ballast |
Nov. 7, 2006 |
| 7132802 |
Method for varying the power consumption of capacitive loads |
Nov. 7, 2006 |
| 7129856 |
Illuminated sign for traffic control and method for functional monitoring of such a sign |
Oct. 31, 2006 |
| 7129653 |
Self-contained, self-snubbed, HID dimming module that exhibits non-zero crossing detection switching |
Oct. 31, 2006 |
| 7129647 |
Electronic ballast with programmable processor |
Oct. 31, 2006 |
| RE39341 |
Apparatus for lighting fluorescent lamp |
Oct. 17, 2006 |
| 7122975 |
Filament lamp light quantity control method and filament lamp light quantity control unit and filament lamp light source unit |
Oct. 17, 2006 |
| 7120560 |
Lamp monitoring and control system and method |
Oct. 10, 2006 |
| 7120035 |
Inverter controller |
Oct. 10, 2006 |
| 7119501 |
Dynamic color mixing LED device |
Oct. 10, 2006 |
| 7119498 |
Current control device for driving LED devices |
Oct. 10, 2006 |
| 7119494 |
Circuit designs and control techniques for high frequency electronic ballasts for high intensity discharge lamps |
Oct. 10, 2006 |
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