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Class Information
Number: 315/306
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation > Regulator in shunt to the load device
Description: Systems wherein the regulator is placed in shunt circuit to the load device so that part of the current from the source of current supply is diverted from the load device to the regulator.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7388337 |
Fluorescent lamp lighting apparatus and lighting control system |
Jun. 17, 2008 |
| 7312584 |
Plasma-generation power-supply device |
Dec. 25, 2007 |
| 7259524 |
Apparatus and methods for regulating delivery of electrical energy |
Aug. 21, 2007 |
| 6815911 |
Filament lamp light source unit and filament lamp light quantity control method |
Nov. 9, 2004 |
| 6795044 |
Plasma display panel and driving method thereof |
Sep. 21, 2004 |
| 6721152 |
Boost circuit and power supply converter |
Apr. 13, 2004 |
| 6710993 |
Method and apparatus for providing overload protection for a circuit |
Mar. 23, 2004 |
| 6278420 |
Plasma display panel and driving method thereof |
Aug. 21, 2001 |
| 6153980 |
LED array having an active shunt arrangement |
Nov. 28, 2000 |
| 5959413 |
Home and small business phone system for operation on a single internal twisted pair line and methodology for operating the same |
Sep. 28, 1999 |
| 5844378 |
High side driver technique for miniature cold cathode fluorescent lamp system |
Dec. 1, 1998 |
| 5767630 |
Methods and apparatus for obtaining floating output drive to fluorescent lamps and minimizing installation requirements |
Jun. 16, 1998 |
| 5604411 |
Electronic ballast having a triac dimming filter with preconditioner offset control |
Feb. 18, 1997 |
| 5530319 |
Power supply circuit for a discharge lamp and use of and method of operating the same |
Jun. 25, 1996 |
| 5517087 |
Fluorescent lamp ignition circuit |
May. 14, 1996 |
| 5140228 |
Apparatus for regulating the intensity of light emitted by a lamp |
Aug. 18, 1992 |
| 4973884 |
Substitute lamp module for projectors |
Nov. 27, 1990 |
| 4912375 |
Energizing arrangement for a discharge lamp |
Mar. 27, 1990 |
| 4890039 |
Fluorescent lamp resonant ballast |
Dec. 26, 1989 |
| 4792730 |
Circuit for interrupting arc discharge in a gas-discharge vessel |
Dec. 20, 1988 |
| 4733137 |
Ion nitriding power supply |
Mar. 22, 1988 |
| 4725759 |
Pilot lamp |
Feb. 16, 1988 |
| 4724360 |
Circuit arrangement for operating a high-pressure discharge lamp |
Feb. 9, 1988 |
| 4723098 |
Electronic ballast circuit for fluorescent lamps |
Feb. 2, 1988 |
| 4654562 |
Flashing lamp unit |
Mar. 31, 1987 |
| 4649322 |
Energizing arrangement for controlling the luminous intensity of at least one discharge lamp and use of such arrangement |
Mar. 10, 1987 |
| 4603281 |
Electronic fluorescent lamp starter |
Jul. 29, 1986 |
| 4531086 |
Device for stabilizing the voltage of a single- or multi-phase a-c network |
Jul. 23, 1985 |
| 4508995 |
Method of eliminating discomforting flickering when viewing X-ray film in a light cabinet, and a flicker-eliminating unit for use in a light cabinet |
Apr. 2, 1985 |
| 4477748 |
Solid state ballast |
Oct. 16, 1984 |
| 4358716 |
Adjustable electrical power control for gas discharge lamps and the like |
Nov. 9, 1982 |
| 4340843 |
Keep-alive circuit for gas discharge lamp |
Jul. 20, 1982 |
| 4327310 |
Spark circuit |
Apr. 27, 1982 |
| 4240025 |
Feeding system for incandescent lamps by overhead wires of transmission lines |
Dec. 16, 1980 |
| 4156166 |
Method and apparatus for saving energy |
May. 22, 1979 |
| 4134044 |
High frequency circuit for operating a high-intensity gaseous discharge lamp |
Jan. 9, 1979 |
| 3999032 |
Current control in an electron beam welder |
Dec. 21, 1976 |
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