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US20110006688 LED LAMP DEVICE  
This invention relates to an LED lamp device which can be applicable to a socket of a general fluorescent lamp, a halogen lamp, an incandescent lamp or the like by embodying an LED illuminating...
US20150084539 METHOD FOR OPERATING A HIGH-PRESSURE DISCHARGE LAMP WITH A VARIABLE POWER  
A method for operating a high-pressure discharge lamp with a variable power is disclosed. Said method utilizing at least the following steps: (a) providing high-pressure discharge lamp, which has...
US20070138979 LED illumination unit, projection display device using the same, and method of operating LED illumination unit  
An LED illumination unit, a projection display device using the LED illumination unit, and a method of operating the LED illumination unit are provided. The LED illumination unit includes a light...
US20140244044 ADAPTABLE WIRELESS POWER, LIGHT AND AUTOMATION SYSTEM  
A power control unit and method of use thereof for varying the supply of electricity to an electrical apparatus using a wireless communications link between a controller and the power control...
US20060197469 Light emitting diode (LED) driver  
An LED driver is provided for driving a plurality of light emitting diodes (LEDs), having a current controller to control a power supply of a predetermined power source unit to establish a current...
US20140312802 WIRELESS LIGHTING NETWORK WITH EXTERNAL REMOTE CONTROL  
In embodiments of the present invention improved capabilities are described for systems and methods that provide for a power outage lighting management within an environment, comprising a power...
US20140300293 LED LIGHTING DEVICE AND AN LEDLIGHTING NETWORK SYSTEM  
The present invention provides an LED lighting device and an LED lighting network system. The LED lighting device includes an LED lighting unit, an LED driving circuit, a controller, and a Wi-Fi...
US20090224186 DUAL OPTO-COUPLER OPTICAL ISOLATION CIRCUIT  
An electrical control circuit detects a sensed value on a load and outputs an analog sensor signal. The analog sensor signal is passed through a plurality of isolation couplers which isolate a...
US20140191683 DEVICE FOR IMPROVING COMPATIBILITY OF SOLID STATE LIGHT SOURCES WITH PHASE-CUT DIMMERS  
A device suppresses flicker and improves compatibility of a lamp including at least one solid state light source, the lamp being operably connected to a control circuit, such as a dimmer circuit....
US20150008843 SYSTEMS AND METHODS FOR POWER MANAGEMENT IN A BEACON  
A method for power management in a beacon includes determining a program density of a signaling program; determining an initial driving voltage using the program density; determining a current...
US20110121747 END-OF-LIFE PROTECTION CIRCUIT AND METHOD FOR HIGH INTENSITY DISCHARGE LAMP BALLAST  
An apparatus and method for detecting an end of life (EOL) condition of a lamp that exhibits a re-ignition behavior. A voltage is applied to the lamp to cause the lamp to start emitting light, and...
US20120256558 Dimmer for Light Emitting Diodes and Fluorescent Bulbs  
A dimmer system for a luminaire is provided. The dimmer system has a dimmer that receives a first current and supplies a reduced-magnitude current. The dimmer system also has a boosting system...
US20100031562 Crop Lighting  
A method and lighting installation for use in horticulture for lighting crops in a greenhouse, with a number of lamps (2a . . . 2n) provided above the crops to be lighted, and a number of dimmer...
US20110204799 Current driver for LED  
A current driver for powering an LED assembly comprises an input capacitor and a full wave rectifier. The LED assembly is connected to the rectifier output terminals. A driven LED assembly may be...
US20110164414 FLUORESCENT LAMP SUPPORT  
Apparatus and methods for supporting a fluorescent lamp. The apparatus may include a ballast and one or more lamp holders. The lamp holders may be in electrical communication with the ballast via...
US20090160354 DESIGNER-STYLE DIMMER APPARATUS AND METHOD  
A switch for controlling distribution of power to a light. The switch may include a frame, a controller connected to the frame, and a rocker connected to the frame to pivot with respect thereto...
US20110050106 Online Time Dimmer  
An online time dimmer is disclosed, which comprises a base, an electric circuit unit lodged in the base and a top cover joined with the base correspondingly. The electric circuit unit is...
US20150145427 BOOST AND LINEAR LED CONTROL  
A light emitting diode (LED) lighting system includes a switching power converter having an input for coupling to an alternating current (AC) power source, an output, and a switch. The LED...
US20100001662 LED CANDELABRA FIXTURE AND LAMP  
An electric lighting lamp or bulb having an LED light source mounted to a candle base, and wherein driver circuitry for the LED light source is housed within the candle base. A transparent...
US20100207538 ELECTRONIC CANDLE STRUCTURE  
The present invention relates to an improved structure for an electronic candle, and is primarily fabricated from a candle column, which is solidified and formed from molten wax, and a supporting...
US20060119289 Accelerating circuit that can increase speed of LED to turn on/off  
An accelerating circuit increases the speed of an LED (light-emitting diode) by controlling an LED driving circuit. The LED driving circuit includes two driving transistors. The accelerating...
US20130334411 METHOD AND DEVICE FOR ADJUSTING THE BIAS VOLTAGE OF A SPAD PHOTODIODE  
The present disclosure relates to a method for adjusting a bias voltage of a SPAD photodiode, comprising successive steps of: applying to the photodiode a first test bias voltage lower than a...
US20140132178 Light Emitting Diode Module  
A light emitting diode module includes a circuit board, a light-emitting-diode (LED) unit, a light-adjusting unit and a conductive trace. The LED unit is directly mounted on the circuit board. The...
US20110095700 LED DRIVE CIRCUIT, LED ILLUMINATION FIXTURE, LED ILLUMINATION DEVICE, AND LED ILLUMINATION SYSTEM  
An LED drive circuit in which an alternating voltage is input and an LED is driven, and which is capable of connecting to a phase control dimmer. The LED circuit is provided with a current...
US20140036240 DISCHARGE LAMP LIGHTING APPARATUS AND PROJECTOR  
A polarity-reversal control circuit gives a polarity-reversal order so that the polarity of an inverter is inverted each time the polarity-reversal timing notified by a signal is recognized. The...
US20080315785 Systems and methods for backlighting image displays  
Systems and methods for backlighting an image display by independently driving multiple backlights for the display. The display may be, for example, a LCD display panel of a portable information...
US20100141168 CLASS-E AMPLIFIER AND LIGHTING BALLAST USING THE AMPLIFIER  
An amplifier comprises a power source, a load network comprising a load and a resonance circuit, an input branch having a first end electrically coupled to the power source and a second end...
US20110062885 METHOD OF DRIVING AN UHP GAS-DISCHARGE LAMP  
The invention describes a method of driving a gas-discharge lamp (1), wherein the lamp (1) is driven at any one time using one of a number of driving schemes, and wherein the lamp (1) is driven at...
US20080111500 BRIGHTNESS CONTROL OF A STATUS INDICATOR LIGHT  
An apparatus and method for controlling the brightness and luminance of a light, such as an LED. The embodiment may vary the brightness and luminance of the LED in a variety of ways to achieve a...
US20140312801 Driver Circuit for Electroluminescent Element  
A driver circuit for an EL element is proposed. The driver circuit for the EL element includes a first TFT, a second TFT, a third TFT, a storage capacitor, and an EL element. The EL element...
US20090058316 Magnetic ballast  
Magnetic ballast comprising a covered fairing, case or base with cover, basically rectangular, without limitation to the effects of the present patent, constituted by a ballast or a magnetic...
US20110001436 Power Management Unit with Light Module Identification  
In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with...
US20120299508 XENON LAMP DRIVE UNIT, METHOD FOR DRIVING XENON LAMP, AND ARTIFICIAL SOLAR LIGHT IRRADIATION UNIT  
A xenon lamp drive unit of the present invention comprises: a charging circuit; and a current control circuit adapted to supply a current to a xenon lamp by using a charged voltage of the charging...
US20140239162 SWITCH  
A switch is disclosed. In some examples, a switch includes a generally cylindrical housing; one or more sets of contact points enclosed by the housing; an indicator module, such as a multi-color...
US20150077020 METHOD OF DRIVING LED CHIPS OF SAME POWER BUT DIFFERENT RATED VOLTAGES AND CURRENTS  
A method of driving LED chips of same power but different rated voltages and currents includes the following steps: set a predetermined power; provide a LED chip which has a rated power accordant...
US20110260639 POWER SUPPLY DEVICE HAVING CURRENT CONTROL CIRCUIT CAPABLE OF CORRECTING POWER FACTOR  
Disclosed herein is a power supply device capable of correcting power factor. The power supply device includes a rectification circuit, a first constant current circuit, a capacitor, and a second...
US20110193492 LIGHT-EMITTING DIODE LIGHTING DEVICE  
A light-emitting diode (LED) lighting device includes at least a base, at least an LED light source, and at least a driver. The LED light source is of a rectangular parallelepiped form and is...
US20130134899 METHOD FOR OPERATING A HIGH-PRESSURE DISCHARGE LAMP OUTSIDE THE NOMINAL POWER RANGE THEREOF  
A method for operating a high-pressure discharge lamp outside the nominal power range thereof is provided. The method may include: providing the high-pressure discharge lamp; and varying relative...
US20120319588 SYSTEMS AND METHOD FOR ADAPTIVE MONITORING AND OPERATING OF ELECTRONIC BALLASTS  
An assembly, system and method for adaptively monitoring and operating a lamp fixture include a power input interface, a ballast, and a lamp interface. The ballast is coupled to the power input...
US20110121757 CONTROLLER FOR CONTROLLING AN LED ASSEMBLY, LIGHTING APPLICATION AND METHOD FOR CONTROLLING AN LED ASSEMBLY  
A controller for controlling an LED assembly is described. The controller is arranged to—receive an input signal representing a required characteristic of the LED assembly,—convert the input...
US20140168052 LED BACKLIGHT DRIVING CIRCUIT AND LCD DEVICE  
A light emitting diode (LED) backlight driving circuit includes an LED lightbar, and a driver integrated circuit (IC) coupled to the LED lightbar. The driver IC is configured with a protection pin...
US20110074311 HIGH-VOLTAGE DISCHARGE LAMP LIGHTING DEVICE AND LIGHTING FIXTURE  
A device includes a direct current power circuit configured to convert an alternating current voltage from an alternating current power source into a direct current voltage, an output unit...
US20130147390 FLASHLIGHT  
The present invention relates to a flashlight having a rotary switch for switching different brightness levels and/or luminous colors, which rotary switch has a battery cartridge arranged...
US20130162170 Stage Lighting Device With a Controlling Computer and a Separate Offline Computer  
a lighting device or lighting associated device which includes an off-line computer in addition to the controlling computer. The off-line computer is one that uses less power, but is accessible...
US20140062333 LED DRIVE CIRCUIT  
In aspects of the invention, a flyback converter configuration LED drive circuit, by adopting a configuration such that anode voltages of LEDs smoothed by a smoothing capacitor on the secondary...
US20060232227 Membrane touch dimmer  
There is disclosed a two wire touch operated dimmer controlled by a membrane potentiometer. Adjusting the DC potential on the membrane potentiometer changes the output potential to a load. In many...
US20090184655 POWER MANAGEMENT SYSTEM FOR LIGHT EMITTING DIODES  
A power management system comprising: providing a one pin driver circuit; sourcing a managed current from the one pin driver circuit; and illuminating a light emitting diode by the managed current...
US20120062143 DRIVING CIRCUIT  
A driving circuit for driving a diode includes at least one differential pair including a first output node and a second output node and configured to switch an output current, a current source...
US20150016440 System and method of transmitting a message to a wireless limited node  
Methods are provided for transmitting and receiving a message to or form a wireless limited node (10) in a wireless network (100) wherein the wireless limited node (10) is related to a coupled...
US20090322248 LED DRIVING CIRCUIT AND LIGHT EMITTING DIODE ARRAY DEVICE  
There is provided an LED driving circuit. The LED driving circuit according to an aspect of the invention may include: at least one ladder circuit including: (n−1) number (here, n is a positive...