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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:

Class Number Class Name Patents
315/308 Regulator responsive to plural conditions 1,177
315/310 Shunted impedance-type regulator 61
315/309 Thermal responsive regulator 287
315/311 Variable impedance-type regulator 118


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next

Patent Number Title Of Patent Date Issued
8264161 Lighting apparatus for high-voltage discharge lamp Sep. 11, 2012
8258719 Method and circuit arrangement for regulating a LED current flowing through a LED circuit arrangement, and associated circuit composition and lighting system Sep. 4, 2012
8258718 Lighting device and display device Sep. 4, 2012
8258716 Driving power supply system of an active type LED with multiple channels Sep. 4, 2012
8258714 LED controller with phase-shift dimming function and LED phase-shift dimming circuit and method thereof Sep. 4, 2012
8258712 Ballast circuit for reducing lamp striations Sep. 4, 2012
8258705 Scotopically enhanced emergency light and control thereof Sep. 4, 2012
8253352 Circuits and methods for powering light sources Aug. 28, 2012
8253351 Electronic ballast with multimode lamp power control Aug. 28, 2012
8253349 System and method for regulation of solid state lighting Aug. 28, 2012
8253348 Illumination device capable of adjusting light brightness and method thereof Aug. 28, 2012
8253346 Multi configurable lighting and energy control system and modules Aug. 28, 2012
8253342 Light emitting diode illumination system Aug. 28, 2012
8248000 Light emitting device driver circuit, light emitting device array controller and control method thereof Aug. 21, 2012
8247999 Time division multiplexing a DC-to-DC voltage converter Aug. 21, 2012
8247997 Ballast with lamp filament detection Aug. 21, 2012
8247996 Backlight driving system utilizing one PWM controller to control two backlight units separately Aug. 21, 2012
8247995 Control system for multiple light sources Aug. 21, 2012
8247989 Lamp detection driving system and related detection driving method Aug. 21, 2012
8247984 LED circuit and method for controlling the average current of the LED Aug. 21, 2012
8247982 Method of driving a light source, light source assembly for performing the method, and liquid crystal display apparatus having the same Aug. 21, 2012
8242715 Electro-optical based lamp/fixture for continuous control of LED light beam position and focus Aug. 14, 2012
8242714 Two-wire dimmer circuit for a screw-in compact fluorescent lamp Aug. 14, 2012
8242713 LED illumination system with a power saving feature Aug. 14, 2012
8242712 Power supply apparatus Aug. 14, 2012
8242711 Lighting systems Aug. 14, 2012
8242710 Driver device for a load and method of driving a load with such a driver device Aug. 14, 2012
8242707 Ambient light calibration for energy efficiency in display systems Aug. 14, 2012
8242705 Frequency modulation method and device for high intensity discharge lamp Aug. 14, 2012
8242703 Driving apparatus for light emitting diodes without employing electrolytic capacitor Aug. 14, 2012
8242702 Method for driving a fluorescent lamp, and lamp ballast Aug. 14, 2012
8242700 Backlight unit Aug. 14, 2012
8237734 Portable electronic device and light flickering method for light emitting element thereof Aug. 7, 2012
8237379 Circuits and methods for powering light sources Aug. 7, 2012
8237378 Driving device for discharge lamp, light source device, projector, and driving method for discharge lamp Aug. 7, 2012
8237377 Energy efficient lighting system and method Aug. 7, 2012
8237375 Illuminating system and method thereof Aug. 7, 2012
8237374 LED lighting device and lighting equipment Aug. 7, 2012
8232745 Modular lighting systems Jul. 31, 2012
8232744 Method for the operation of and circuit arrangement for light sources Jul. 31, 2012
8232743 Voltage converter and driving method for use in a backlight module Jul. 31, 2012
8232742 Method, apparatus and computer-readable media for controlling lighting devices Jul. 31, 2012
8232741 Electronic ballast with controlled lamp preheating Jul. 31, 2012
8232736 Power control system for current regulated light sources Jul. 31, 2012
8232735 System and method for driving LED Jul. 31, 2012
8228005 Light-emitting-element driving circuit Jul. 24, 2012
8228004 Systems and methods for driving a light source Jul. 24, 2012
8228003 Electronic ballast for an hid lamp with lamp re-start control Jul. 24, 2012
8227998 Controller for controlling dimming of a light source Jul. 24, 2012
8227997 Lamp driving circuit Jul. 24, 2012

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