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BRUSHLESS MOTOR CONTROL DEVICE AND BRUSHLESS MOTOR SYSTEM
Provided are a brushless motor control device and a brushless motor system capable of preventing impossibility of intended control of a brushless motor...
AUTOMATIC DETECTION OF A MECHANICALLY COMMUTATED DC MOTOR
In order to automatically detect a mechanically commutated DC motor, it is provided to acquire an electrical engine size, to determine current ripples in the...
Retarding Grid Cooling System and Control
A cooling system (100) for a retarding grid (118) having a plurality of resistors (120) and insulators (122) is provided. The cooling system (100) may include a...
Flywheel System Using Wire-Wound Rotor
A flywheel is described having a rotor constructed of wire wound onto a central form. The wire is prestressed, thus mitigating stresses that occur during...
RF CAVITY USING LIQUID DIELECTRIC FOR TUNING AND COOLING
A system for accelerating particles includes an RF cavity that contains a ferrite core and a liquid dielectric. Characteristics of the ferrite core and the...
MODULAR LIGHTING ARRAYS
Apparatus, systems, architectures, and methods provide interlocked modular lighting array units to operate as a single large light source. The modular lighting...
BALL SHAPE LED LAMP
A ball shape LED lamp comprises a ball; a driving circuit being installed at a central portion of the ball; and an LED light assembly having a plurality of LED...
Thermally Self-Stabilizing LED Module
An improved LED module that is thermally self-stabilizing, and that is able to be retrofitted into an existing flashlight is provided. In one embodiment, the...
LIGHT EMITTING DIODE DRIVING INTEGRATED CIRCUIT
A driving integrated circuit of light emitting diodes is used for driving at least one light emitting diode. The driving integrated circuit includes a current...
LUMINESCENCE DRIVING APPARATUS, DISPLAY APPARATUS, AND DRIVING METHOD
A luminescence driving apparatus, a display apparatus, and a driving method thereof are provided. The luminescence driving apparatus includes: a driving circuit...
High efficiency drive method for driving LED devices
A set of unique concept of driving multiple LED strings with non-dissipative current balancing and non-dissipative synchronous current regulation is disclosed....
LAMP DRIVING DEVICE
A lamp driving device is provided for driving plural lamps. The lamp driving device includes a power conversion circuit and plural lamp connectors. The power...
LED (LIGHT-EMITTING DIODE) OUTPUT POWER ADJUSTING DEVICE AND METHOD
An LED (Light-Emitting Diode) output power adjusting device includes an analog/digital conversion and detection circuit, a computation and control unit, a...
LED DRIVERS WITH ADAPTIVE HYSTERETIC CONTROL CIRCUITS AND ASSOCIATED
METHODS OF OPERATION
Various embodiments of LED drivers and associated methods of are described below. In one embodiment, a method for controlling an LED driver includes receiving a...
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...
Method of Stabilizing Work Consumption of Passive Element
While an electronic product including passive elements is connected to an AC input voltage source, corresponding decreased currents are calculated according to...
VARIABLE-IMPEDANCE LOAD FOR LED LAMPS
In various embodiments, a startup circuit for a low-voltage-lighting electronic transformer includes a low-impedance output circuit. At the beginning of an AC...
Method For Transmitting Control Information From A Control Device To A
Lamp Unit As Well As A Corresponding...
A method is provided for driving at least one lamp unit, which is connected to an AC voltage power supply system. The method comprises modulating a control...
An illumination assembly, comprising: at least one luminous means having at least one luminescence diode chip as light source, and at least one energizing...
APPARATUS AND METHOD FOR LED LIGHT CONTROL
An illumination apparatus comprises a plurality of LEDs and a control system connected to receive dimmer-modulated AC line voltage and control the LEDs. The...
Method for Detection of Non-Zero-Voltage Switching Operation of a Ballast
of Fluorescent Lamps, and Ballast
A method for use in a lamp ballast includes obtaining a measurement signal representative of a voltage at an output of a half-bridge circuit. The half-bridge...
Direct current light emitting device control circuit with dimming function
and method thereof
The present invention discloses a direct current (DC) light emitting device control circuit with dimming function, and a method thereof, wherein the dimming...
DISPLAY APPARATUS AND METHOD OF DRIVING PIXEL THEREOF
A display apparatus includes a plurality of pixels each including first and second organic EL elements whose emitting periods are controlled by respective...
DRIVING CIRCUIT FOR T8 LED LAMP
A driving circuit for a T8 light-emitting diode (LED) lamp mainly includes two bridge rectifiers. According to the electrical characteristics and the circuit...
LOW VOLTAGE LED DIMMER WITH INTEGRATED UNIVERSAL SWITCH MODE POWER SUPPLY
A low voltage dimmer for LED lamps incorporates an AC-DC power supply along with a Pulse Width Modulator (PWM) to modify the power delivered to an LED load is...
Regulated Voltage Protection Circuit, Display Controller and LED Driving
Method of the Same
A regulated voltage protection circuit includes a bias-voltage generating circuit and a clamping circuit. The bias-voltage generating circuit provides a...
METHOD OF DRIVING A LIGHT SOURCE, LIGHT SOURCE APPARATUS FOR PERFORMING
THE METHOD AND DISPLAY APPARATUS HAVING...
A light source apparatus includes a plurality of light source parts, a power supply part, a current selection part and a current control part. The plurality of...
IMAGE DISPLAY APPARATUS
An image display apparatus according to an implementation of the present invention includes: pixel circuits disposed in rows and columns; first power lines and...
Light Engine Device with Direct to Linear System Driver
A lighting system adapted for being retrofit into a conventional lighting fixture, or adapted to replace the conventional fixture. The lighting system includes...
LIGHT DIMMING CONTROL
A power supply to an LED-based street or area light is operated to provide a dimming control signal, which is in turn processed by a circuit to produce 0-10 V...
LIGHT EMITTING DIODE LAMP AND OPTICAL COMMUNICATION NETWORKING SYSTEM
A light emitting diode (LED) lamp includes a lamp body, an LED array, a light driving unit and a light detection unit. The LED array and the light detection...
ILLUMINATION DEVICE AND METHOD CONTROLLING THE SAME
An illumination device and a method controlling the same are provided. The illumination device produces a pulse width modulation signal to control an...
Distributed Lighting Control of a Corridor or Open Areas
Methods and apparatuses of distributed lighting control are disclosed. One method includes a sensor sensing a change of light intensity per unit of time greater...
LIGHTING DEVICE WITH OPTICAL PULSATION SUPPRESSION BY POLYPHASE-DRIVEN
The present invention relies on polyphase alternating current power with phase difference or direct current power rectified from polyphase alternating current...
Managing Light System Energy Use
A first lighting assembly receives a lighting profile that instructs the first lighting assembly to operate according to the lighting profile over a first...
OPEN LED BYPASS CIRCUIT AND ASSOCIATED METHODS OF OPERATION
The embodiments of the present circuit and method disclose a circuit to bypass a target circuit when an open status is detected. The present circuit may...
The invention relates to a light module for electrical and thermal attachment to an energy infrastructure having at least one power supply, each power supply...
THERMAL FOLDBACK CIRCUIT WITH DIMMER MONITOR
A thermal foldback circuit protects a lamp circuit component from overheating by limiting power to the lamp in response to an over-temperature condition. The...
LIGHT GENERATING DEVICE AND METHOD FOR CONTROLLING THE DEVICE
A light generating device includes: an LED module, a memory, an LED module driving unit, a current controller, a temperature sensor, an operation unit, and a...
A discharge apparatus (1) including a discharge electrode used to generate charged water microparticles or ions. A discharge passage (5) discharges the charged...
Headlamp for vehicle
A headlamp for a vehicle includes: a housing having a front opening; a lens cover arranged to cover the front opening of the housing; a lamp chamber defined by...
SYSTEM AND METHOD FOR CONTROLLING HEADLIGHTS ON A VEHICLE IN RESPONSE TO
A method for controlling headlights on a vehicle includes detecting for a wiper switch state for a wiper switch on a vehicle, detecting wiper operations,...
LIGHT EMITTING DEVICE
A light emitting device includes: a substrate having opposed first and second main faces; a light emitting element mounted on the first main face of the...
PROTECTION CIRCUIT OF T8 LED LIGHTING TUBE
A protection circuit is provided for a T8 LED lighting tube, including at least two power transmission connectors and at least two rectification circuits. The...
LIGHT-EMITTING DIODE (LED) MODULE WITH LIGHT SENSOR CONFIGURATIONS FOR
An embodiment of the disclosure includes a LED module. A substrate is provided. A light sensor is positioned in the substrate. A LED chip is attached to the...
APPARATUS, SYSTEM, AND METHOD OF CONTROLLING IGNITION TIMING OF A HID LAMP
USING A THIRD ELECTRODE
A high-intensity discharge (HID) lamp comprising a discharge vessel including a first and a second end region and defining an arc chamber containing an arc...
Sealing for panels of an organic electroluminescence display and lighting
An organic EL display device or a lighting device is covered by sealing the top and bottom, left and right, front and back, that is the entire body and...
ELECTROLUMINESCENT TEXTILE AND METHOD FOR THE PRODUCTION THEREOF
A method for producing electroluminescent textiles and to electroluminescent textiles produced accordingly is provided. A layer arrangement (10) of an...
Organic Electroluminescent Device and Method of Fabrication
An organic electroluminescent device comprises an anode; a cathode; a first electroluminescent layer between the anode and the cathode comprising an electron...
The present invention provides a light-emitting device comprising a supporting substrate and a plurality of organic EL elements provided on the supporting...