Low-cost driver circuit with improved power factor

LED security light and LED security light control device thereof

Configurable LED driver/dimmer for solid state lighting applications

LED DRIVE CIRCUIT

LED driver circuit using flyback converter to reduce observable optical flicker by reducing rectified AC mains ripple

INTERNET-OF-THINGS (IOT) HUB APPARATUS AND METHOD

Serial lighting interface with embedded feedback

Lighting device and lighting fixture using same

Autonomous apparatus and system comprising such an apparatus

TRIAC low voltage dimming control system

Driving circuits and methods for controlling light source

Battery backup system for LED luminaire

Method and system for modifying a beacon light source for use in a light based positioning system

Lighting device, luminaire using lighting device, and lighting system using luminaire

Illumination device control systems and methods

Device for controlling a field effect transistor

SWITCHING POWER SUPPLY SYSTEM, AND ASSOCIATED CONTROL CIRCUIT TO ELIMINATE FLICKER OF LED

Push-pull LED driver circuit

Illumination device control systems and methods

Compact power conversion device with continuous output regulation range

Electrical switch and mounting assembly therefor

LED fluorescent lamp driving power source and LED fluorescent lamp

Modular light-string system having independently addressable lighting elements

Adaptive direct current (DC) to DC (DC-to-DC) light emitting diode (LED) driver for dynamic loads

Backlight unit and display device including backlight unit with overcurrent protection

System and method for a switched-mode power supply

Calibration of a load control device for a light-emitting diode light source

Current balancing system for semiconductor elements in parallel

Method and system for modifying a beacon light source for use in a light based positioning system

Method for improving the illumination of an illumination region from an illumination device

Alternating current rectifying circuit and alternating current rectifying method for driving LED module

Control circuit of LED lighting apparatus

Systems and methods for dimming of a light source

In and relating to displays and light sources for displays

Power supply device and lighting device

Electric driver circuit for driving a light-emitting diode

Solid-state lighting compatible with ballasts and operable with AC mains

LED based lighting application

Two stage indicator dimming circuit controlled by PWM backlighting back feed and backlight control

Time synchronization of lighting services

Ballast type detecting circuit and light emitting diode lighting apparatus having the same

Driver for a light emitting diode (LED) lighting system

Illumination systems

POWER CONVERSION SYSTEM

Network controlled multi-color lighting services

Vehicle wheel assembly illumination lamp

Current splitter for LED lighting system

Current splitter for LED lighting system

Drivers and driving methods for a LED string, capable of providing LED short protection or avoiding LED flickering

Light emitting diode system

Control system of an electrical load

POWER SUPPLY DEVICE OF EMERGENCY LIGHT

Lighting lamp system and power distributor used for lighting lamp system

Resonance converter for driving multiple AC LED strings

Power supply for LED lighting system

Power converter circuitry with switching frequency control circuitry

Lighting circuit and lamp system

Display apparatus and backlight driving module

LED lamp

Visible and nonvisible light bulb driver and system

Lighting device and lighting fixture using same

Lighting device and lighting fixture using same

Primary control LED driver with additional power output and control method thereof

LED lighting apparatus and control circuit thereof

DC LED driverless lighting assembly

High power factor primary regulated offline LED driver

Current driver for diode laser system

Monolithic LED chip in an integrated control module with active circuitry

Driver device and driving method for driving a load, in particular an LED unit

LED drive circuit and method for driving LED

Backlight unit

Voltage/current regulator supplying controlled current with PVT adjusted headroom

LED drive current adjustment for irradiance step response output

Standby current supplier

Lighting connectivity module

Control system for phase-cut dimming

Load driving device, and lighting apparatus and liquid crystal display device using the same

SWITCHING CIRCUIT FOR LIGHT-EMITTING DIODE

Drive circuit with an external mode-adjusting pin

Method for minimizing LED flicker of an LED driver system

Bleeder protection using thermal foldback

Converter one pin sensing

Phase angle detection module for power converter

Power converter controller with input current slope adjustment

Method and apparatus for providing supplemental power in a LED driver

Power converter controller with analog controlled variable current circuit

VCC charge and free-wheeling detection via source controlled MOS transistor

Lighting device and lighting appliance having the lighting device

METHOD AND SYSTEM FOR WIRELESS MUSIC-MODULATED LIGHTING USING LED LIGHTING DEVICES

Control of illumination devices using DC-DC converters

Solid state lighting fixture with incandescent dimming characteristics

Lighting System With Built-in Intelligence

Lighting-on/off control circuit and lighting-on/off control method

LED CURRENT CONTROLLER

Method and system for modifying a beacon light source for use in a light based positioning system

Switching converter with light source dimming function

CONTROL OF NON-SELF-EXCITING-CONVERTER

CURRENT-STEERING DAC CIRCUIT AND LED CIRCUIT USING THE SAME

Second stage calibration in DC/DC LED current regulation

Apparatus and method for monitoring and limiting power to SSL devices

Thermoelectrically powered portable light source

Relating to power adaptors

Switching converter

Automatic reference generator in switching boost converters

Solid-state lamps with electronically adjustable light beam distribution

Two-level LED security light with motion sensor

Driving apparatus for a light emitting device and method for the same

Apparatus for controlling light module

SIGNAL SMOOTHING DEVICE AND BACKLIGHT DEVICE INCLUDING THE SAME

Accurate mains time-base for LED light driver

Illumination lamp and illumination device configured for rapid-start method

LIGHT-EMITTING DIODE DEVICE

Light emitting diode lamp with burnable function and light emitting diode lamp string with burnable function

Single-stage power supply with power factor correction and constant current output

Electronic cigarette with brightness-adjustable head lamp and brightness adjustment method therefor

Load control device for a light-emitting diode light source

Method and arrangement for remotely driving light emitting diodes from a three-phase power source via a single phase cable system

LED drive circuit

LED LAMP WITH DUAL MODE OPERATION

Module having measurement signal feedback via a galvanically isolated converter

Load current control circuit

Use of very high frequency switching power converters for also modulating light output from solid state emitter to communicate data

Configurable LED power supply with wireless interface

Solid state steerable light

Vehicle lamp and lighting circuit thereof

Low-overhead current generator for lighting circuits

LED lighting system

Apparatus for driving light emitting diode

POWER TOOL

Control method for light color of lighting device

Power over ethernet powered device having automatic power signature

Asymmetric multiphase boost for display backlights

LED tube lamp

LED DRIVE SYSTEM FOR CONTROLLING AN OFF-CHIP POWER SUPPLY

CONTROLLER AND CONVERTER INCLUDING FOR THE SAME

LED control system

LED bypass and control circuit for fault tolerant LED systems

Controlling brightness and color temperature of light sources

Driving circuit for light-emitting element with burst dimming control

Lamp cap integrated with LED drive power supply

Generation of drive current independent of input voltage

Lighting circuit and vehicle lamp having the same

Circuit for driving lighting apparatus and method thereof

Circuit for driving AC direct lighting apparatus and method therefor

Power factor correction control circuit and driving method thereof

Powering internal components of LED lamps using dissipative sources

Solid state lamp control

AC LED lamps and control methods thereof

Trailing edge detector using current collapse

Switching power supply device and projection video display device

Integrated micro-light-emitting-diode module with built-in programmability

Device for transmitting an electrical parametrization signal to a drive member of a light-emitting diode based lighting module, associated power supply system, lighting assembly and method of transmission

LED driver

Module for lighting means with combined secondary-side measurement signal detection

Operating device for luminous elements

Lighting device, luminaire, and lighting system

DRIVER CIRCUIT WITH ADAPTIVE PEAKING CONTROL

Driving current generation circuit, LED power supply module and LED lamp

Forward converter having a primary-side current sense circuit

LED LAMP DEVICE

Lighting apparatus, illumination light source, and power supply unit

Lighting device and luminaire

Operating circuit for LEDs, having voltage measurement

Light emitting diode driver

Systems and methods for converting alternating current to drive light-emitting diodes

Active power factor correction control circuit, chip and LED driving circuit thereof

MEANS TO ELIMINATE BOW TIE KNOTTING OF A SHOE LACE

Reduced flickering lighting apparatus and luminaire

Controllable-load circuit for use with a load control device

LED driving circuit and method using single inductor

LED driving circuit and method using single inductor

Illumination light and illumination device

Lighting apparatus and luminaire that adjust switching frequency based on output voltage

HIGH-POWER RETROFIT LED LAMP WITH ACTIVE AND INTELLIGENT COOLING SYSTEM FOR REPLACEMENT OF METAL HALID LAMP AND HIGH-PRESSURE SODIAM LAMP

LED backlight sources for liquid crystal devices and liquid crystal devices

Power supply device and illumination device

Three-way switching circuit having delay for inrush current protection

Lighting apparatus using series-connected current sources and methods of operating same

High efficiency driver circuitry for a solid state lighting fixture

Solid-state lighting fixture with compound semiconductor driver circuitry

Lighting apparatus with variable current switching frequency and methods of operating same

DRIVING CIRCUIT, LIGHTING DEVICE AND METHOD OF REDUCING POWER DISSIPATION

SWITCHING POWER CONVERTER INPUT VOLTAGE APPROXIMATE ZERO CROSSING DETERMINATION

Control voltage adjusting circuit, feedback signal generating circuit, and control circuit including the same

Method and circuit for detecting short circuit in an asynchronous DC-DC boost converter

Energy attachment for a helmet

Dimming system and operating method thereof

Power supply, power control method thereof, and display apparatus having the same

Light emitting diode driving chip having eight or six pins, driving system using the light emitting diode driving chip, and related method thereof

Drive circuit for illumination device and illumination device

Lighting system

Driving circuit for a light emitting component including a control circuit and a boost converter circuit

Lamp system realizing various ways for controlling lighting up thereof

Switch driver circuit and associated methods

Multiple inductive component

Method and apparatus for precise temperature brightness compensation of LED

Multichannel constant current LED controlling circuit and controlling method

Dimmer and LED driver with dimming modes

Multichannel constant current LED driving circuit, driving method and LED driving power

Systems and methods for dimming control using system controllers

Backlight unit and display device

Load driving circuit and method thereof

System and method for a switching converter

Method and apparatus for multi channel current driving

Current feedback for improving performance and consistency of LED fixtures

LED driver circuit

High-efficiency LED driver and driving method

Method of driving backlight unit and display device having the backlight unit

LED driver and LED driving method

Power Converter for Light Bulb Assembly Comprising Multiple LED Arrays

Electronic control to regulate power for solid-state lighting and methods thereof

Lighting device, light source device, illuminating device, and vehicular headlight

Circuit with an LED dimming linear compensation

Hysteretic power factor control method for single stage power converters

Electrical power supply system for an electrical unit of a motor vehicle

Systems and methods for intelligent dimming control using TRIAC dimmers

Circuits and methods for reducing flicker in an LED light source

Control circuit of LED lighting apparatus

Systems and methods for intelligent dimming control using TIRAC dimmers

System and method for achieving precise regulation of multiple outputs in a multi-resonant LED driver stage

System for controlling the supply of power to and for thermal management of light sources

Control circuit of LED lighting apparatus

Multi-function terminal configurable to implement two functionalities

Backlight unit and display device having the same

LED mains voltage measurement using a current mirror

Illumination device and method for controlling an illumination device over changes in drive current and temperature

Dimmable LED driver and driving method

Controlling LED current from a constant voltage source

High-precision LED control circuit, method and LED driver thereof

Universal voltage LED power supply with regenerating power source circuitry, non-isolated load, and 0-10V dimming circuit

Switchable luminance LED light bulb

LED control circuit with self-adaptive regulation

LED LAMP WITH VARIABLE INPUT POWER SUPPLY

Lighting control device, lighting device, and lighting fixture

Load control device for high-efficiency loads

LED driver with small output ripple without requiring a high-voltage primary-side electrolytic capacitor

Power supply device supplying limited DC power to load based on ground fault detection

Method and circuit for reducing ripple of current output by current source

LED bulb using heat dissipating LED driver

LED array member and integrated control module assembly having active circuitry

Two-wire dimmer with improved zero-cross detention

Detection of an LED module

Lighting apparatus and dimming regulation circuit thereof

LED backlight driving circuit and liquid crystal display device

LED driving device and lighting device

Backlight unit

Constant current driving device

Multifunctional universal LED driver

Signal crossing detection

Electric candle with illuminating panel

Illuminating display systems

Two-level LED security light with motion sensor

Two-level LED security light with motion sensor

Alternating current rectifying circuit and alternating current rectifying method for driving LED module

Dimmer compatible LED driving apparatus with adjustable bleeding current

LED lighting device and illuminating device

Circuit arrangement and method for operating and dimming at least one LED

Driving circuit, illumination light source, and illumination device

Controller for inserting signaling transitions onto a line voltage

LED lamp, and method of driving at least one LED string thereof

LIGHT SOURCE CONTROLLERS

Line ripple compensation for shimmerless LED driver

Apparatus for driving light-emitting diodes

Propagation delay compensation for floating buck light emitting diode (LED) driver

AC-DC power converter

Boost converter stage switch controller

Electronic lighting system and method for lighting synchronization

Retrofit LED lighting system with circuit level enhancement

Light emitting element drive apparatus and portable apparatus using same

Controller and method for dimming light-emitting diodes

Backlight module with MJT LED and backlight unit including the same

LED lighting apparatus

Control methods and power converters suitable for TRIAC dimming

Lighting circuits, luminaries and methods compatible with phase-cut mains supplies

Switched mode power supply

Low flicker LED driving circuit with high power factor

DC power supply circuit

Off-time control for switched mode power supplies

On-time control for switched mode power supplies

Electronic device

Lighting apparatus comprising a control device and aircraft comprising the lighting apparatus

MASTER-SLAVE CONTROL ARRANGEMENT FOR A LIGHTING FIXTURE

Solid state lighting apparatuses, circuits, methods, and computer program products providing targeted spectral power distribution output using pulse width modulation control

Self-excited TRIAC dimming circuit

Alternating current (AC)-direct current (DC) power booster and AC-DC power control module for AC and DC illuminations

Voltage converter and lighting apparatus incorporating a voltage converter

Adaptive Current Control Timing and Responsive Current Control for Interfacing with a Dimmer

SOLAR ENERGY HARVESTING WITH LIGHT EMITTING DIODES

Arrangement and method for operating an arrangement

FEEDBACK CIRCUIT, CONTROL CIRCUIT, AND POWER SUPPLY APPARATUS INCLUDING THE SAME

Dimming circuit for a phase-cut TRIAC dimmer

REVERSE BLOCKING APPARATUS FOR ELECTRONIC DEVICE AND SWITCH APPARATUS INCLUDING THE SAME

Detecting a presence of an operating dimmer

Dimmer compatible light emitting diode driver

Power adaptors

Systems and methods for driving light emitting diodes

LED circuit and driving method thereof

LED drive circuitry with disconnect switch

Systems and methods for regulating output currents of power conversion systems

Utilizing secondary-side conduction time parameters of a switching power converter to provide energy to a load