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Class Information
Number: 315/209R
Name: Electric lamp and discharge devices: systems > Periodic switch in the supply circuit
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619371 |
Inverter for driving backlight devices in a large LCD panel |
Nov. 17, 2009 |
| 7619368 |
Power source apparatus |
Nov. 17, 2009 |
| 7619365 |
Load control device having a variable drive circuit |
Nov. 17, 2009 |
| 7615941 |
Apparatus and method for maximizing the longevity of arc tube bulbs during pulsing operation |
Nov. 10, 2009 |
| 7615937 |
High-pressure discharge lamp lighting device and lighting fixture |
Nov. 10, 2009 |
| 7615933 |
Pulsed dielectric barrier discharge |
Nov. 10, 2009 |
| 7609237 |
Circuit apparatus with LED diodes |
Oct. 27, 2009 |
| 7609006 |
LED light string with split bridge rectifier and thermistor fuse |
Oct. 27, 2009 |
| 7609005 |
Circuitry for portable lighting devices and portable rechargeable electronic devices |
Oct. 27, 2009 |
| 7605544 |
Current balancing circuit |
Oct. 20, 2009 |
| 7598682 |
Current regulator apparatus and methods |
Oct. 6, 2009 |
| 7598677 |
Multiple failure detection shutdown protection circuit for an electronic ballast |
Oct. 6, 2009 |
| 7595596 |
Power-saving control circuit and method for OLED panel |
Sep. 29, 2009 |
| 7592753 |
Inductively-powered gas discharge lamp circuit |
Sep. 22, 2009 |
| 7589475 |
Electric lamp with enhanced dependability |
Sep. 15, 2009 |
| 7586270 |
Circuit and method for the operation of miniature high pressure short-arc lamps using alternating current |
Sep. 8, 2009 |
| 7586266 |
Driver circuit for an HID lamp and method for operating an HID lamp |
Sep. 8, 2009 |
| 7586265 |
Illumination device |
Sep. 8, 2009 |
| 7579790 |
Multiple gas discharge lamp interleave trigger circuit |
Aug. 25, 2009 |
| 7579784 |
Switching power supply and its control circuit, and electronic apparatus employing such switching power supply |
Aug. 25, 2009 |
| 7573207 |
Driver system and method with multi-function protection for cold-cathode fluorescent lamp and external-electrode fluorescent lamp |
Aug. 11, 2009 |
| 7569998 |
Striking and open lamp regulation for CCFL controller |
Aug. 4, 2009 |
| 7564197 |
Discharge tube operation device |
Jul. 21, 2009 |
| 7564196 |
Power supply device, and LED device and electronic device using same |
Jul. 21, 2009 |
| 7564195 |
Circuit of the electronic ballast with the capability of automatic restart |
Jul. 21, 2009 |
| 7564194 |
Method for detecting lamp current and lamp driving circuit using the method for detecting the lamp current |
Jul. 21, 2009 |
| 7564192 |
HID dimming method and apparatus |
Jul. 21, 2009 |
| 7564191 |
Inverter having single switching device |
Jul. 21, 2009 |
| 7560874 |
Electronic ballast with improved inverter startup circuit |
Jul. 14, 2009 |
| 7560871 |
Ballast with socket-to-fixture voltage limiting |
Jul. 14, 2009 |
| 7560867 |
Starter for a gas discharge light source |
Jul. 14, 2009 |
| 7558081 |
Basic halogen convertor IC |
Jul. 7, 2009 |
| 7557523 |
Discharge lamp lighting device, and lighting equipment and lighting system using the device |
Jul. 7, 2009 |
| 7557517 |
Primary side current balancing scheme for multiple CCF lamp operation |
Jul. 7, 2009 |
| 7557515 |
Simplified ballast control circuit |
Jul. 7, 2009 |
| 7554273 |
Protection for external electrode fluorescent lamp system |
Jun. 30, 2009 |
| 7554272 |
Low noise electroluminescent lamp (EL) driver and method therefor |
Jun. 30, 2009 |
| 7554271 |
Single stage PFC and power converter circuit |
Jun. 30, 2009 |
| 7550934 |
LED driver with fast open circuit protection, short circuit compensation, and rapid brightness control response |
Jun. 23, 2009 |
| 7550932 |
Control method and device for a power-converting module that drives a light-emitting component |
Jun. 23, 2009 |
| 7550930 |
Method and device for lighting an electronic or electromechanical apparatus |
Jun. 23, 2009 |
| 7548028 |
Current-mode resonant inverter circuit |
Jun. 16, 2009 |
| 7545369 |
Methods and apparatus to improve efficiency in cold cathode fluorescent light controllers |
Jun. 9, 2009 |
| 7545105 |
Driving circuit for piezoelectric lamps |
Jun. 9, 2009 |
| 7541753 |
Starter for low-pressure discharge lamps |
Jun. 2, 2009 |
| 7541749 |
Current-mode resonant inverter circuit for discharge lamp |
Jun. 2, 2009 |
| 7541744 |
Electronic ballast for a high-pressure discharge lamp having a current-measuring device |
Jun. 2, 2009 |
| 7531966 |
Lamp ballast circuit |
May. 12, 2009 |
| 7531965 |
Discharge centering lamp lighting device |
May. 12, 2009 |
| 7528558 |
Ballast with ignition voltage control |
May. 5, 2009 |
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