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Class Information
Number: 315/DIG.5
Name: Electric lamp and discharge devices: systems > Starting and operating circuit for fluorescent lamp
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7615934 |
High efficiency resonant ballast |
Nov. 10, 2009 |
| 7589472 |
Electronic ballast with lamp type determination |
Sep. 15, 2009 |
| 7586266 |
Driver circuit for an HID lamp and method for operating an HID lamp |
Sep. 8, 2009 |
| 7548028 |
Current-mode resonant inverter circuit |
Jun. 16, 2009 |
| 7535181 |
Method and device for ballast management in particular for a motor vehicle headlamp |
May. 19, 2009 |
| 7501773 |
Multistrike gas discharge lamp ignition apparatus and method |
Mar. 10, 2009 |
| 7482762 |
Discharge lamp ballast with detection of abnormal discharge outside the arc tube |
Jan. 27, 2009 |
| 7479742 |
Discharge lamp lighting circuit |
Jan. 20, 2009 |
| 7462992 |
Starter circuit having regulated starter voltage |
Dec. 9, 2008 |
| 7459867 |
Program start ballast |
Dec. 2, 2008 |
| 7436124 |
Voltage fed inverter for fluorescent lamps |
Oct. 14, 2008 |
| 7436126 |
Resonant ballast circuit |
Oct. 14, 2008 |
| 7432670 |
Device for turning on high-pressure discharge lamp and lighting apparatus equipped with the device |
Oct. 7, 2008 |
| 7425802 |
Discharge lamp lighting apparatus, luminaire and illumination system |
Sep. 16, 2008 |
| 7420334 |
Electronic ballast for a lamp |
Sep. 2, 2008 |
| 7400100 |
Discharge-lamp lighting apparatus and projector |
Jul. 15, 2008 |
| 7385361 |
Ballast for high-pressure discharge lamp and method of operating the same |
Jun. 10, 2008 |
| 7368878 |
Current-mode resonant ballast |
May. 6, 2008 |
| 7352136 |
DC-DC converter with reduced surge voltage and an electronic ballast including the converter for a discharge lamp |
Apr. 1, 2008 |
| 7348733 |
Discharge lamp lighting circuit and method |
Mar. 25, 2008 |
| 7348737 |
Lighting circuit for high-pressure discharge lamp |
Mar. 25, 2008 |
| 7339330 |
Methods and circuits for instant hot restart of high intensity discharge lamps |
Mar. 4, 2008 |
| 7327101 |
Single point sensing for end of lamp life, anti-arcing, and no-load protection for electronic ballast |
Feb. 5, 2008 |
| 7327096 |
Electrode temperature differential operation of a discharge lamp |
Feb. 5, 2008 |
| 7323824 |
Methods and apparatus for operating very high pressure short arc discharge lamps |
Jan. 29, 2008 |
| 7312588 |
Ballast with frequency-diagnostic lamp fault protection circuit |
Dec. 25, 2007 |
| 7293897 |
Integrated fluorescent lamp device |
Nov. 13, 2007 |
| 7294972 |
Feedback circuit for push-pull inverters |
Nov. 13, 2007 |
| 7285922 |
Driving apparatus for CCFL |
Oct. 23, 2007 |
| 7282870 |
Driving apparatus for CCFL |
Oct. 16, 2007 |
| 7282869 |
HID ballast and lamp tester |
Oct. 16, 2007 |
| 7279847 |
Pulse starting circuit |
Oct. 9, 2007 |
| 7276859 |
Three-phase electronic ballast with improved three-phase EMI filter |
Oct. 2, 2007 |
| 7276862 |
Stabilizer circuit for high-voltage discharge lamp |
Oct. 2, 2007 |
| 7274158 |
System for driving plural lamps |
Sep. 25, 2007 |
| 7271552 |
Ballast circuit for operating a gas discharge lamp |
Sep. 18, 2007 |
| 7259523 |
Circuit arrangement |
Aug. 21, 2007 |
| 7245088 |
Power control circuit for controlling rated power supplied to a load |
Jul. 17, 2007 |
| 7239094 |
Electronic ballast with adaptive lamp preheat and ignition |
Jul. 3, 2007 |
| 7218062 |
Protective device and a CCFL driving system used thereon |
May. 15, 2007 |
| 7218064 |
Cold cathode flat fluorescent lamp and driving method therefor |
May. 15, 2007 |
| 7193375 |
Electronic ballast having a pump circuit for a discharge lamp having preheatable electrodes |
Mar. 20, 2007 |
| 7187132 |
Ballast with filament heating control circuit |
Mar. 6, 2007 |
| 7164237 |
Circuit arrangement for operating discharge lamps |
Jan. 16, 2007 |
| 7161312 |
Distributed fluorescent light control system |
Jan. 9, 2007 |
| 7157863 |
Device and method for the multi-phase operation of a gas discharge or metal vapor lamp |
Jan. 2, 2007 |
| 7157865 |
Circuit for driving cold cathode tubes and external electrode fluorescent lamps |
Jan. 2, 2007 |
| 7154231 |
Gas discharge lamp dimming control method |
Dec. 26, 2006 |
| 7138769 |
Device for operation of a high pressure discharge lamp and a projector device |
Nov. 21, 2006 |
| 7129650 |
Lighting apparatus for high intensity discharge lamp |
Oct. 31, 2006 |
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