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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 |
| 6630799 |
Resonant power supply and apparatus for producing vacuum arc discharges |
Oct. 7, 2003 |
| 6628090 |
Resonant driving system for a fluorescent lamp |
Sep. 30, 2003 |
| 6628091 |
Electronic switch for a bi-level fluorescent lamp fixture |
Sep. 30, 2003 |
| 6624593 |
Dimmable ballast for electrodeless fluorescent lamps |
Sep. 23, 2003 |
| 6624598 |
Ballast and method of feeding a fluorescent lamp |
Sep. 23, 2003 |
| 6624599 |
Compact single-stage electronic ballast circuit for emergency lighting applications |
Sep. 23, 2003 |
| 6621236 |
Discharge lamp lighting device and illumination device |
Sep. 16, 2003 |
| 6621237 |
Gas-discharge lamp lighting apparatus with optimized circuit configuration |
Sep. 16, 2003 |
| 6617807 |
Discharge lamp lighting circuit for a plurality of discharge lamps |
Sep. 9, 2003 |
| 6617809 |
Discharge lamp lighting circuit |
Sep. 9, 2003 |
| 6611112 |
Appliance for discharge lamps with reliable starting |
Aug. 26, 2003 |
| 6605905 |
Discharge lamp driving apparatus and lighting fixture using the apparatus |
Aug. 12, 2003 |
| 6597126 |
High-frequency, ballast-free, non-thermionic fluorescent lighting system for cold environments |
Jul. 22, 2003 |
| 6597131 |
Discharge lamp lighting circuit |
Jul. 22, 2003 |
| 6593707 |
Cross connection structure for dual high-pressure discharge lamp banks and transformers thereof |
Jul. 15, 2003 |
| 6593708 |
Electronic circuit for the gradual start-up of electric loads, particularly halogen lamps |
Jul. 15, 2003 |
| 6590348 |
Discharge lamp lighting method and discharge lamp lighting apparatus |
Jul. 8, 2003 |
| 6583568 |
Method and apparatus for dimming high-intensity fluorescent lamps |
Jun. 24, 2003 |
| 6583587 |
Discharge lamp lighting circuit |
Jun. 24, 2003 |
| 6580229 |
Discharge lamp lighting device |
Jun. 17, 2003 |
| 6577066 |
Compact self-ballasted fluorescent lamp |
Jun. 10, 2003 |
| 6577076 |
Adaptive control for half-bridge universal lamp drivers |
Jun. 10, 2003 |
| 6570342 |
Fluorescent lamp and power converter |
May. 27, 2003 |
| 6570343 |
Device for turning on light and illumination apparatus |
May. 27, 2003 |
| 6570346 |
Circuit for flashing fluorescent lamps |
May. 27, 2003 |
| 6555965 |
Integral housing for low profile fluorescent lamp |
Apr. 29, 2003 |
| 6555967 |
Low noise method and apparatus for driving electroluminescent panels |
Apr. 29, 2003 |
| 6555973 |
Arrangement in connection with discharge lamp |
Apr. 29, 2003 |
| 6552497 |
Light bulb type fluorescent lamp lighting apparatus |
Apr. 22, 2003 |
| 6548963 |
Circuit device |
Apr. 15, 2003 |
| 6548964 |
Discharge lamp lighting apparatus and luminaire using the same |
Apr. 15, 2003 |
| 6548966 |
Discharge lamp lighting device |
Apr. 15, 2003 |
| 6545426 |
Control circuit using piezoelectric ceramic transformer for driving back-light devices |
Apr. 8, 2003 |
| 6545431 |
Dimmable electronic ballast |
Apr. 8, 2003 |
| 6541925 |
Resonant converter circuit with suppression of transients during changes in operating condition |
Apr. 1, 2003 |
| 6541926 |
Electronically controlled, power saving, power supply system for fluorescent tubes |
Apr. 1, 2003 |
| 6538372 |
Fluorescent agro lamp with reduced mercury |
Mar. 25, 2003 |
| 6534926 |
Portable fluorescent drop-light |
Mar. 18, 2003 |
| 6534927 |
Multiple-light cold-cathode tube lighting device |
Mar. 18, 2003 |
| 6534928 |
Method for driving a flat-type lamp |
Mar. 18, 2003 |
| 6525488 |
Self-oscillating synchronous boost converter |
Feb. 25, 2003 |
| 6525492 |
Ballast control IC with minimal internal and external components |
Feb. 25, 2003 |
| 6522087 |
Ultra-high voltage impulse generator |
Feb. 18, 2003 |
| 6518710 |
Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method |
Feb. 11, 2003 |
| 6518711 |
Halogen lamp electronic transformer |
Feb. 11, 2003 |
| 6518712 |
Method and apparatus for controlling the operation of a lamp |
Feb. 11, 2003 |
| 6509696 |
Method and system for driving a capacitively coupled fluorescent lamp |
Jan. 21, 2003 |
| 6507157 |
Electronic ballast system with dual power and dimming capability |
Jan. 14, 2003 |
| 6504313 |
Ignition scheme for electronic HID ballast |
Jan. 7, 2003 |
| 6504314 |
Discharge lamp DC ballast employing only passive components |
Jan. 7, 2003 |
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