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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 |
| 7336038 |
Method and apparatus for single-ended conversion of DC to AC power for driving discharge lamps |
Feb. 26, 2008 |
| 7332876 |
Lighting apparatus for discharge lamp |
Feb. 19, 2008 |
| 7332868 |
Discharge lamp lighting device |
Feb. 19, 2008 |
| 7332867 |
Apparatus and method for driving lamp of liquid crystal display device |
Feb. 19, 2008 |
| 7327102 |
Portable fluorescent task lamp |
Feb. 5, 2008 |
| 7327101 |
Single point sensing for end of lamp life, anti-arcing, and no-load protection for electronic ballast |
Feb. 5, 2008 |
| 7327095 |
Discharge lamp lighting apparatus |
Feb. 5, 2008 |
| 7321203 |
LED dimming control technique for increasing the maximum PWM dimming ratio and avoiding LED flicker |
Jan. 22, 2008 |
| 7321201 |
Basic halogen convertor IC |
Jan. 22, 2008 |
| 7317286 |
Power supply apparatus for discharge lamp and control method for the same |
Jan. 8, 2008 |
| 7315134 |
Power supply for a high voltage device |
Jan. 1, 2008 |
| 7315133 |
Discharge lamp lighting apparatus |
Jan. 1, 2008 |
| 7315130 |
Switching control for inverter startup and shutdown |
Jan. 1, 2008 |
| 7312588 |
Ballast with frequency-diagnostic lamp fault protection circuit |
Dec. 25, 2007 |
| 7312585 |
Remote control of electronic light ballast and other devices |
Dec. 25, 2007 |
| 7312582 |
Electronic ballast |
Dec. 25, 2007 |
| 7307390 |
Primary side constant output voltage controller |
Dec. 11, 2007 |
| 7300192 |
Methods and apparatus for illuminating environments |
Nov. 27, 2007 |
| 7295105 |
Turn indicator unit for a relay-controlled flasher |
Nov. 13, 2007 |
| 7294974 |
Fixed operating frequency inverter for cold cathode fluorescent lamp having strike frequency adjusted by voltage to current phase relationship |
Nov. 13, 2007 |
| 7294973 |
Discharge tube lighting apparatus, light source apparatus, and display apparatus |
Nov. 13, 2007 |
| 7293897 |
Integrated fluorescent lamp device |
Nov. 13, 2007 |
| 7291993 |
Method for driving a fluorescent lamp and an inverter circuit for performing such a method |
Nov. 6, 2007 |
| 7291992 |
Load failure protection circuit and discharge lamp driving apparatus |
Nov. 6, 2007 |
| 7291983 |
Ballast and igniter for a lamp having larger storage capacitor than charge pump capacitor |
Nov. 6, 2007 |
| 7285922 |
Driving apparatus for CCFL |
Oct. 23, 2007 |
| 7282872 |
Discharge lamp lighting circuit |
Oct. 16, 2007 |
| 7282870 |
Driving apparatus for CCFL |
Oct. 16, 2007 |
| 7282867 |
Lighting device for discharge lamp |
Oct. 16, 2007 |
| 7282865 |
Device and method for operating a discharge lamp |
Oct. 16, 2007 |
| 7280375 |
Circuit arrangement for operating at least one light-emitting diode |
Oct. 9, 2007 |
| 7279850 |
Decoupling circuits |
Oct. 9, 2007 |
| 7279848 |
Electronic ballast for a lamp |
Oct. 9, 2007 |
| 7279847 |
Pulse starting circuit |
Oct. 9, 2007 |
| 7274158 |
System for driving plural lamps |
Sep. 25, 2007 |
| 7274153 |
Portable fluorescent drop-light |
Sep. 25, 2007 |
| 7274149 |
Lamp with integral pulse width modulated voltage control circuit |
Sep. 25, 2007 |
| 7271545 |
Ballast and igniter for a lamp having larger storage capacitor than charge pump capacitor |
Sep. 18, 2007 |
| 7271544 |
Lighting apparatus for illumination light source |
Sep. 18, 2007 |
| 7265503 |
Applications of halogen convertor control IC |
Sep. 4, 2007 |
| 7265502 |
Dimming apparatus of light emitting unit |
Sep. 4, 2007 |
| 7265499 |
Current-mode direct-drive inverter |
Sep. 4, 2007 |
| 7265497 |
Methods and protection schemes for driving discharge lamps in large panel applications |
Sep. 4, 2007 |
| 7259623 |
RF generator with reduced size and weight |
Aug. 21, 2007 |
| 7259622 |
RF generator with phase controlled MOSFETs |
Aug. 21, 2007 |
| 7259527 |
Stepped dimming ballast for fluorescent lamps |
Aug. 21, 2007 |
| 7259523 |
Circuit arrangement |
Aug. 21, 2007 |
| 7253569 |
Open lamp detection in an EEFL backlight system |
Aug. 7, 2007 |
| 7247998 |
Transient detection of end of lamp life condition apparatus and method |
Jul. 24, 2007 |
| 7247991 |
Dimming ballast and method |
Jul. 24, 2007 |
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