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US20140333228 DIMMER DETECTOR FOR BLEEDER CIRCUIT ACTIVATION  
A circuit to be utilized for an LED driver bleeder activation. The circuit comprises a circuit block for timing a duration of any removed portion of a rectified line signal. The input of the...
US20140028217 Pixel Driver Circuit And Pixel Circuit Having The Pixel Driver Circuit  
A pixel driver circuit for driving a light-emitting element and a pixel circuit having the pixel driver circuit are provided. The pixel driver circuit includes a data line, address lines, switch...
US20080265795 Circuit-Arrangement for Modulating an Led and Method for Operating Same  
To achieve high modulation frequencies when modulating an LED, a circuit-arrangement for modulating at least one LED comprises a modulation-circuit (3) parallel to the LED, wherein the...
US20110080112 CLOSED-LOOP LOAD CONTROL CIRCUIT HAVING A WIDE OUTPUT RANGE  
A load control circuit, such as a light-emitting diode (LED) driver, for controlling the amount of power delivered to an electrical load, such as an LED light source, comprises a regulation...
US20100060189 LED DRIVER CIRCUIT  
An emergency-lighting device for operating a light-source, in particular an LED, comprises an energy storage unit, a charging circuit, to be supplied with a mains supply voltage (Uin), for...
US20110285303 DIMMER CONTROL CIRCUIT FOR SELECTING BETWEEN STEP DIMMING MODE AND PHASE-CUT DIMMING MODE  
The present invention relates to a dimmer control circuit (100) capable to detect whether a phase-cut dimmer is connected using an average signal (VDCI) derived from the mains voltage. The average...
US20070252118 Power jack and accessory light  
A powerjack includes a base, a lift member, a lift mechanism supporting the lift member on the base, and an electric motor operably connected to lift mechanism, for operating the jack. The jack...
US20140354175 HIGH WATT TYPE CERAMIC METAL HALIDE LAMP ILLUMINATION DEVICE  
A high watt type ceramic metal halide lamp illumination device is provided. The device comprises: ballast receiving a primary input voltage and outputting a secondary voltage, and a lamp having a...
US20050029962 Luminosity adjustable fluorescent lamp device for coordinated use with silicon controlled phase luminosity modulator  
Luminosity adjustable fluorescent lamp device available for coordinated use with silicon-controlled phase-luminosity modulator includes a fluorescent lamp (1) and an electric ballast (2), the...
US20100156325 HIGH EFFICIENCY POWER CONDITIONING CIRCUIT FOR LIGHTING DEVICE  
A power conditioning circuit in a light bulb efficiently converts an Alternating Current (AC) input voltage into Direct Current (DC) power for operating LEDs in the light bulb. The power...
US20110084625 Switching Circuit Adapted in LED Circuit  
A switching circuit adapted in an LED circuit and an LED circuit are provided. The switching circuit has a mode-selecting circuit, a comparator and a control module. The mode-selecting circuit has...
US20140028215 SWITCH  
The invention comprises a switch suitable for forwarding at least two functions to a lighting system.
US20120091894 LED DRIVING DEVICE  
An LED (Light-Emitting Diode) driving device is electrically connectable with an alternating current (AC) power supply and includes an electronic converter received in the driving device and a...
US20080247183 BUS STOP ARM AND LAMP FOR BUS STOP ARM  
A disclosed bus stop arm includes an extendable arm for protruding from a bus and including signage instructing motorists to stop, a socket in the extendable arm for receiving a lamp, and a lamp...
US20140184094 CONNECTOR POSITION DEVICE  
A connector position device includes a light emitting diode (LED) and a switch. The LED is fixed facing a connector of a motherboard. An anode of the LED is connected to a power supply; a cathode...
US20110115387 LED LAMP AND PROTECTING CIRCUIT THEREOF  
A protecting circuit for an LED unit includes first, second, third and fourth diodes. A cathode of the second diode couples to an anode of the first diode, and a cathode of the third diode couples...
US20110156926 LED SOLAR TRAFFIC MARKING PANEL FITTED WITH INTEGRATED DIMMING CONTROLLER  
A multifunctional integrated dimming controller and an LED solar traffic marking panel fitted with this controller. The multifunctional integrated dimming controller is applied to the marking...
US20090015175 Brightness control system for LED lighting devices  
The present invention provides a brightness remote control system for LED lighting device. There are two control modes, namely automatic mode and manual mode. At automatic mode, the brightness of...
US20090015178 LED driver and control method thereof  
A LED driver providing a LED lighting current to a LED path, extracts the LED lighting current information from the LED path to produce a first signal including an AC component and a DC component,...
US20100020251 VISUAL DISPLAY SYSTEM WITH VARYING ILLUMINATION  
The invention relates to a visual display system for use in conjunction with a display device (21), the system comprising one or more illumination sources for illuminating a region surround the...
US20130020964 POWER CONVERTER FOR A CONFIGURABLE LIGHT-EMITTING DIODE DRIVER  
A converter for an LED driver for an LED light source. The converter has a flyback transformer. The primary receives a rectified AC voltage. A switching transistor is coupled in series with the...
US20090103287 ORNAMENT HAVING AN INTERNAL ELECTRIC LIGHTING ADAPTABLE TO VARIOUS LIGHTING EFFECTS  
According to one embodiment, an improved ornament is provided which comprises a light source which produces the lighting effect emulating the lighting from a candle flame.
US20100181833 LED Lamp Circuit  
The present invention discloses a high power LED lamp circuit with a fan provides advantages such as simple structure, high efficiency, low power consumption, energy saving, and longer lifetime....
US20100253239 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...
US20090236997 LED control circuit and method, and insect resistive LED lamp  
A LED control circuit and method generate a high frequency clock signal with a fixed duty for a LED driver, to supply a switching current to drive a LED to emit light flashing at a modulated high...
US20090278470 COLOR NAVIGATION SYSTEM  
A system and method for color navigation through a CIELAB color space with coordinates hue (H), lightness (L), chroma (C), with intervals ΔH, ΔL, ΔC such that the perceptual color difference...
US20080150447 ELECTRONIC BALLASTS  
Methods and apparatus are described that can provide improved power factor correction and total harmonic distortion, efficiency and/or direct feedback of load current variations to a power source...
US20100090615 Dimming circuit for controlling luminance of light source and the method for controlling luminance  
The present invention provides a dimming circuit for controlling the luminance of a light source and the method for controlling luminance. The dimming circuit comprises an inverter circuit and a...
US20110234117 Solid State Device Controller  
A solid state device controller is provided that includes a first electrical connector configured to be in electrical communication with an alternating current (AC) electrical power source and a...
US20060082329 Inverter and method for rapid warm-up of luminance loadings  
An inverter and a method for rapid warm-up of luminance loadings are disclosed, thereby minimizing the warm-up time and maintaining continuity of luminance of luminance loadings. The inverter...
US20100084990 Dimmable LED lamp  
An LED lamp utilizes AC power and bidirectional LED chips to provide dimming capabilities. The dimming capabilities of the lamp reduce the junction temperature of the LEDs on the bi-directional...
US20110037408 Method for Operating a Gas Discharge Lamp and Lighting System Comprising a Gas Discharge Lamp  
A method for operating a discharge lamp (1), wherein, during operation of the discharge lamp (1), an electrical heating current (IH) and an electrical discharge current (Id) are supplied at least...
US20140203726 OSCILLATION CIRCUIT  
An oscillation circuit includes: a ramp voltage generating unit configured to generate a ramp voltage; and a clock signal generating unit configured to generate a clock signal. The clock signal...
US20100079081 Light-Emitting Diode (LED) Driver and Controller  
Apparatuses, methods, systems, and circuits for light-emitting diode (LED) control are disclosed. In one embodiment, an LED control circuit can include a first pin receiving an input voltage...
US20130107221 LIGHT EMITTING MODULE AND DISPLAY DEVICE  
A light emitting module and a display device comprising the light emitting module are provided. The light emitting module comprises an excitation light source, a phosphor wheel and a driving...
US20080180037 ELECTRONIC BALLASTS FOR LIGHTING SYSTEMS  
A microprocessor controlled electronic ballast for lighting equipment is described wherein light level control is performed by varying the power provided to the light. Lighting power is adjusted...
US20140300846 FIPEL Backlight Panel With Pixel Color Film For Displays  
A display system, having an emissive body, emitting light in a way that is color temperature controllable. The light emission can be from zones. The emissive body can be a FIPEL type device with a...
US20100052563 Controller of Light Dimming and Overload Protection  
A solution for mitigating interference from electrical signals emitted from a fluorescent lamp. The solution employs an electronic ballast and an electromagnetic filtering circuit. The ballast...
US20080258646 Device for Lighting a Room  
The present invention deals with a lighting control system suitable for small system configurations such as in offices and conference rooms. One or more luminaires are communicatively connected in...
US20130141006 Constant Current DC-DC Converter  
A device includes a positive power supply voltage node; and a first operational amplifier including a first input, a second input, and an output coupled to the second input. The device further...
US20090180271 Nightlight Flashlight  
An emergency light system that includes a housing that is easily mounted in a conventional power outlet box. The system includes a night light within the housing that is automatically actuated by...
US20130070158 TOUCH INPUT DEVICE AND ELECTRONIC DEVICE USING THE SAME  
A touch input device is provided. The touch input device includes a touch panel and a touch control. The touch panel includes a number of touch sensor groups, each touch sensor group includes a...
US20150022782 BINARY CHOICE SELF-TESTING  
My invention is an automated self-testing method utilizing binary choice, which is applicable to monocular and binocular eye tests and can be administered on computer, cellular phones, and other...
US20140111112 LED FLUORESCENT LAMP  
A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic...
US20110050107 ILLUMINATING DEVICE AND METHOD OF CALIBRATING ILLUMINATING DEVICE  
An illuminating device includes: a calibrating output unit for reading an output current command value corresponding to a specific brightness command value and for outputting the output current...
US20120326624 PHOTON SOURCE  
A photon source comprising a photon source body, said photon source body comprising at least one quantum dot; carrier injection means for injecting carriers into said at least one quantum dot and...
US20070247086 Portable wireless remote-controlled dimmer socket  
A portable wireless remote-controlled dimmer socket comprises a housing having a power supply outlet and a power source inlet port formed on the housing and having a remote dimmer control circuit...
US20130106307 ORGANIC LIGHT EMITTING DIODE DRIVING CIRCUIT, DISPLAY PANEL, DISPLAY AND DRIVING METHOD  
The disclosed technical solution relates to an organic light emitting diode driving circuit, and a display panel, a display and a driving method using the same. The organic light emitting diode...
US20120181948 Photographic Wireless Communication Protocol System and Method  
A system and method for converting power control value standards during photographic wireless communication from a camera to one or more remote lighting devices. A power control value of a camera...
US20090160356 Drive Circuit for a Switchable Heating Transformer of an Electronic Ballast and Corresponding Method  
The drive signal for a switchable heating transformer of an electronic ballast should be capable of being produced in a simple manner. For this purpose, the invention provides for an oscillating...