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Class Information
Number: 315/307
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation > Automatic regulation
Description: Systems wherein the regulation of the current or potential supplied to the load device is automatically controlled in response to some condition.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6870326 |
Fluorescent ballast with isolated system interface |
Mar. 22, 2005 |
| 6870327 |
Electrode-less discharge lamp lighting apparatus, bulb-shaped electrode-less fluorescent lamp, and discharge lamp lighting apparatus |
Mar. 22, 2005 |
| 6870329 |
PWM controller with automatic low battery power reduction circuit and lighting device incorporating the controller |
Mar. 22, 2005 |
| 6870330 |
Shorted lamp detection in backlight system |
Mar. 22, 2005 |
| 6867553 |
Continuous mode voltage fed inverter |
Mar. 15, 2005 |
| 6867555 |
Intensity modulator for light source such as AC lamp |
Mar. 15, 2005 |
| 6867556 |
Device for operating a high pressure discharge lamp |
Mar. 15, 2005 |
| 6867557 |
Lighting circuit |
Mar. 15, 2005 |
| 6863652 |
Power conserving adaptive control system for generating signal in portable medical devices |
Mar. 8, 2005 |
| 6864642 |
Electronic ballast with DC output flyback converter |
Mar. 8, 2005 |
| 6864644 |
Method of tuning a circuit for energizing a cold cathode fluorescent lamp |
Mar. 8, 2005 |
| 6865428 |
Method and apparatus for providing distributed control of a home automation system |
Mar. 8, 2005 |
| 6861812 |
Discharge lamp ballast with DC-DC converter |
Mar. 1, 2005 |
| 6858996 |
Driver IC for use with simple microcontrol |
Feb. 22, 2005 |
| 6856102 |
Three-stage electronic ballast for metal halide lamps |
Feb. 15, 2005 |
| 6856519 |
Inverter controller |
Feb. 15, 2005 |
| 6853153 |
System and method for powering cold cathode fluorescent lighting |
Feb. 8, 2005 |
| 6853155 |
Electric discharge lamp device |
Feb. 8, 2005 |
| 6853156 |
Piezoelectric ceramic light starter |
Feb. 8, 2005 |
| 6850015 |
High pressure discharge lamp starter device and an automotive headlight device |
Feb. 1, 2005 |
| 6850016 |
Rare gas discharge lamp lighting apparatus |
Feb. 1, 2005 |
| 6847175 |
Lighting ballast with reverse current flow protection |
Jan. 25, 2005 |
| 6844682 |
Fluorescent ballast with emergency lighting capability |
Jan. 18, 2005 |
| 6841947 |
Systems and methods for controlling brightness of an avionics display |
Jan. 11, 2005 |
| 6841951 |
Single stage HID electronic ballast |
Jan. 11, 2005 |
| 6838837 |
Ultraviolet fluorescent lamp with unique drive circuit |
Jan. 4, 2005 |
| 6838838 |
Power feeding apparatus for discharge lamp |
Jan. 4, 2005 |
| 6836080 |
Energy savings device and method for a resistive and/or an inductive load and/or a capacitive load |
Dec. 28, 2004 |
| 6836081 |
LED driver circuit and method |
Dec. 28, 2004 |
| 6836157 |
Method and apparatus for driving LEDs |
Dec. 28, 2004 |
| 6834208 |
Method and apparatus for providing distributed control of a home automation and control system |
Dec. 21, 2004 |
| 6831425 |
Xenon discharge lamp lighting device |
Dec. 14, 2004 |
| 6831426 |
Electronic device, or dimmer, for regulating the power supply applied to a load |
Dec. 14, 2004 |
| 6828737 |
Discharge lamp operating circuit with a current regulation circuit and a circuit for detection of the proximity to capacitive operation |
Dec. 7, 2004 |
| 6828740 |
Electrodeless discharge lamp operating apparatus, electrodeless compact self-ballasted fluorescent lamp and discharge lamp operating apparatus |
Dec. 7, 2004 |
| 6825619 |
Feedback-controlled LED switching |
Nov. 30, 2004 |
| 6822401 |
Fault management method for electronic ballast |
Nov. 23, 2004 |
| 6822403 |
Light emitting element drive device and electronic device having light emitting element |
Nov. 23, 2004 |
| 6823223 |
Method and apparatus for providing distributed scene programming of a home automation and control system |
Nov. 23, 2004 |
| 6819061 |
Power supply apparatus for light source |
Nov. 16, 2004 |
| 6815911 |
Filament lamp light source unit and filament lamp light quantity control method |
Nov. 9, 2004 |
| 6815912 |
Discharge lamp lighting apparatus and discharge lamp apparatus |
Nov. 9, 2004 |
| 6809938 |
Inverter controller |
Oct. 26, 2004 |
| 6803730 |
Single stage PFC + ballast control circuit/general purpose power converter |
Oct. 12, 2004 |
| 6803732 |
LED array and LED module with chains of LEDs connected in parallel |
Oct. 12, 2004 |
| 6804129 |
High-efficiency adaptive DC/AC converter |
Oct. 12, 2004 |
| 6798152 |
Closed loop current control circuit and method thereof |
Sep. 28, 2004 |
| 6798153 |
Method of regulating power in a high-intensity-discharge lamp |
Sep. 28, 2004 |
| 6793366 |
Watertight, low power L.E.D. flashlight |
Sep. 21, 2004 |
| 6794828 |
Driving serially connected high intensity discharge lamps |
Sep. 21, 2004 |
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