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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 |
| 6501234 |
Sequential burst mode activation circuit |
Dec. 31, 2002 |
| 6498439 |
Ballast for feeding a high-pressure gas discharge lamp |
Dec. 24, 2002 |
| 6495969 |
Series-resonant ballast having overload control |
Dec. 17, 2002 |
| 6495974 |
Power supply for brightness control of a gas-discharge tube |
Dec. 17, 2002 |
| 6492781 |
Closed-loop cold cathode current regulator |
Dec. 10, 2002 |
| 6489725 |
Power saving circuit |
Dec. 3, 2002 |
| 6489729 |
Auxiliary lighting system for high intensity discharge lamp |
Dec. 3, 2002 |
| 6486615 |
Dimming control of electronic ballasts |
Nov. 26, 2002 |
| 6486616 |
Dual control dimming ballast |
Nov. 26, 2002 |
| 6486621 |
Electronic system for generating and controlling light effects on projectors |
Nov. 26, 2002 |
| 6483252 |
Optimal FM for HF operation of high intensity discharge (HID) lamps |
Nov. 19, 2002 |
| 6483257 |
Ignitor pulse variable reduction method and apparatus |
Nov. 19, 2002 |
| 6483258 |
Infrared fiber optic light |
Nov. 19, 2002 |
| 6476567 |
Control gear for fluorescent lamps |
Nov. 5, 2002 |
| 6472827 |
Parallel-resonant inverter-type fluorescent lamp ballast |
Oct. 29, 2002 |
| 6473078 |
Method and device for power consumption management of an integrated display unit |
Oct. 29, 2002 |
| 6465971 |
Plastic "trofer" and fluorescent lighting system |
Oct. 15, 2002 |
| 6465972 |
Electronic elimination of striations in linear lamps |
Oct. 15, 2002 |
| 6459210 |
Switch mode energy recovery for electro-luminescent lamp panels |
Oct. 1, 2002 |
| 6459213 |
Ballast for parallel-connected lamps |
Oct. 1, 2002 |
| 6459214 |
High frequency/high power factor inverter circuit with combination cathode heating |
Oct. 1, 2002 |
| 6459215 |
Integral lamp |
Oct. 1, 2002 |
| 6452340 |
Luminaire starting aid device |
Sep. 17, 2002 |
| 6452343 |
Ballast circuit |
Sep. 17, 2002 |
| 6452345 |
Discharge lamp operating device |
Sep. 17, 2002 |
| 6445133 |
Incandescent lamp with integral voltage converter |
Sep. 3, 2002 |
| 6445140 |
Circuit device |
Sep. 3, 2002 |
| 6437515 |
Discharge lamp lighting device of high startability with high pulse voltage |
Aug. 20, 2002 |
| 6437518 |
Lighting circuit for an electric discharge lamp |
Aug. 20, 2002 |
| 6437520 |
Electronic ballast with cross-coupled outputs |
Aug. 20, 2002 |
| 6429602 |
Fluorescent lamp operating apparatus |
Aug. 6, 2002 |
| 6429603 |
Discharge lamp lighting apparatus |
Aug. 6, 2002 |
| 6429604 |
Power feedback power factor correction scheme for multiple lamp operation |
Aug. 6, 2002 |
| 6429605 |
Control sequence for electronic ballast |
Aug. 6, 2002 |
| 6426598 |
Control gear for fluorescent lamp |
Jul. 30, 2002 |
| 6424097 |
Projection lamp safety interlock apparatus and method |
Jul. 23, 2002 |
| 6420833 |
Switching device with improved over-current protection |
Jul. 16, 2002 |
| 6420838 |
Fluorescent lamp ballast with integrated circuit |
Jul. 16, 2002 |
| 6417631 |
Integrated bridge inverter circuit for discharge lighting |
Jul. 9, 2002 |
| 6414448 |
Electronic ballast for a gas discharge lamp |
Jul. 2, 2002 |
| 6414449 |
Universal electronic ballast |
Jul. 2, 2002 |
| 6411041 |
Non-thermionic fluorescent lamps and lighting systems |
Jun. 25, 2002 |
| 6407507 |
Personal electronic device having EL lamp and buzzer powered from a single inductor |
Jun. 18, 2002 |
| 6404140 |
High frequency electronic ballast for ceramic metal halide lamp |
Jun. 11, 2002 |
| 6392355 |
Closed-loop cold cathode current regulator |
May. 21, 2002 |
| 6392360 |
Neon sign transformer module and receptacle |
May. 21, 2002 |
| 6392361 |
Microprocessor based switching device for energizing a lamp |
May. 21, 2002 |
| 6392365 |
Hot restrike protection circuit for self-oscillating lamp ballast |
May. 21, 2002 |
| 6392366 |
Traic dimmable electrodeless fluorescent lamp |
May. 21, 2002 |
| 6388394 |
High-intensity discharge lamp lighting device and lighting system |
May. 14, 2002 |
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