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Class Information
Number: 315/308
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation > Automatic regulation > Regulator responsive to plural conditions
Description: Systems wherein the regulating means is responsive to two or more conditions; such as, the current and the voltage of the circuit, or a condition of the load device and the current or voltage of the circuit.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7248002 |
Light emission control apparatus and light emission control method with temperature-sensitive driving current control |
Jul. 24, 2007 |
| 7245086 |
Lamp operating circuit and operating method for a lamp having active current measurement |
Jul. 17, 2007 |
| 7242156 |
Light-emitting semiconductor device pulse drive method and pulse drive circuit |
Jul. 10, 2007 |
| 7242150 |
Dimmer having a power supply monitoring circuit |
Jul. 10, 2007 |
| 7242155 |
Discharge lamp driving circuit |
Jul. 10, 2007 |
| 7239091 |
Discharge lamp lighting apparatus for lighting multiple discharge lamps |
Jul. 3, 2007 |
| 7233114 |
Apparatus for driving lamp of liquid crystal display device |
Jun. 19, 2007 |
| 7230613 |
Display driver supporting a dimming mode |
Jun. 12, 2007 |
| 7227316 |
Protective and measure device for multiple cold cathode fluorescent lamps |
Jun. 5, 2007 |
| 7224125 |
Dimmable fluorescent lamp package |
May. 29, 2007 |
| 7221101 |
Lamp driving device |
May. 22, 2007 |
| 7211964 |
Lamp including phase-control power controller with digital RMS load voltage regulation |
May. 1, 2007 |
| 7208888 |
Light-emitting diode lighting device comprising a communication device and installation comprising one such device |
Apr. 24, 2007 |
| 7202612 |
Discharge lamp lighting apparatus |
Apr. 10, 2007 |
| 7199532 |
Lamp containing phase-control power controller with analog RMS load voltage regulation |
Apr. 3, 2007 |
| 7196482 |
PWM controller with automatic low battery power reduction circuit and lighting device incorporating the controller |
Mar. 27, 2007 |
| 7193374 |
Planar light source device and liquid crystal display apparatus having the same |
Mar. 20, 2007 |
| 7190126 |
Daylight control system device and method |
Mar. 13, 2007 |
| 7187134 |
Method of triggering at least one illuminating means and triggering circuit for practicing such method |
Mar. 6, 2007 |
| 7183714 |
Ballast with relamping circuitry |
Feb. 27, 2007 |
| 7183727 |
Optical and temperature feedbacks to control display brightness |
Feb. 27, 2007 |
| 7176640 |
Device for controlling light emission rates of a backlight |
Feb. 13, 2007 |
| 7176638 |
Discharge lamp lighting circuit |
Feb. 13, 2007 |
| 7173384 |
Illumination device and control method |
Feb. 6, 2007 |
| 7173376 |
Multi-functional high intensity discharge automobile headlamp |
Feb. 6, 2007 |
| 7164240 |
Method and apparatus for driving an external electrode fluorescent lamp |
Jan. 16, 2007 |
| 7161308 |
High-voltage discharge lamp operating device |
Jan. 9, 2007 |
| 7157862 |
Protection device for a chopping supply and a vehicle lighting device |
Jan. 2, 2007 |
| 7151345 |
Method and apparatus for controlling visual enhancement of luminent devices |
Dec. 19, 2006 |
| 7151346 |
Method and apparatus for optimizing power efficiency in light emitting device arrays |
Dec. 19, 2006 |
| 7145295 |
Dimming control circuit for light-emitting diodes |
Dec. 5, 2006 |
| 7141936 |
Driving circuit for light emitting diode |
Nov. 28, 2006 |
| 7135825 |
LED power supply device |
Nov. 14, 2006 |
| 7132805 |
Intelligent drive circuit for a light emitting diode (LED) light engine |
Nov. 7, 2006 |
| 7126288 |
Digital electronic ballast control apparatus and method |
Oct. 24, 2006 |
| 7126289 |
Protection for external electrode fluorescent lamp system |
Oct. 24, 2006 |
| 7122975 |
Filament lamp light quantity control method and filament lamp light quantity control unit and filament lamp light source unit |
Oct. 17, 2006 |
| 7119492 |
Flicker detecting system for detecting lamp life differing from lamp to lamp |
Oct. 10, 2006 |
| 7119502 |
Flashing discharge tube-use power supply and control method therefor |
Oct. 10, 2006 |
| 7109669 |
Microwave lamp power supply that can withstand failure in high voltage circuit |
Sep. 19, 2006 |
| 7109665 |
Three-way dimming CFL ballast |
Sep. 19, 2006 |
| 7109668 |
Electronic lighting ballast |
Sep. 19, 2006 |
| 7109667 |
Discharge lamp driving apparatus |
Sep. 19, 2006 |
| 7106009 |
Duplexing protection apparatus and operation method thereof |
Sep. 12, 2006 |
| 7098609 |
Discharge lamp driving circuit provided with discharge detecting pattern |
Aug. 29, 2006 |
| 7093140 |
Method and apparatus for configuring a voltage regulator based on current information |
Aug. 15, 2006 |
| 7091673 |
Discharge lamp lighting device |
Aug. 15, 2006 |
| 7084579 |
Two light level ballast |
Aug. 1, 2006 |
| 7084581 |
Device and method for controlling a gas discharge lamp, and lighting system with gas discharge lamp and control device |
Aug. 1, 2006 |
| 7084586 |
Discharge lamp lighting apparatus and discharge lamp apparatus |
Aug. 1, 2006 |
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