Driver circuit for efficiently driving a large number of LEDs

LED light with three-dimensional polyhedron printed circuit board

LIGHT EMITTING DEVICE DRIVER CIRCUIT AND CONTROL CIRCUIT AND CONTROL METHOD THEREOF

High power factor, electrolytic capacitor-less driver circuit for light-emitting diode lamps

Power Supply Circuit and Illumination Apparatus

Multi-channel LED driver arrangements

Synchronous regulation for LED string driver

Magnetic coil / transformer modulation

METHOD AND APPARATUS FOR THE ZONAL TRANSMISSION OF DATA USING BUILDING LIGHTING FIXTURES

Portable backup charger

Optical communication for solid-state light sources

Systems, methods, and devices for providing a luminaire inductively coupled to a power transmission line

Buck-boost voltage converter circuits for solid state lighting apparatus

Integrated circuit for converting a high voltage level to a low voltage level

Digital dimmable driver

Controlling switching current regulators

LED BACKLIGHT DRIVING CIRCUIT, LCD DEVICE, AND METHOD FOR DRIVING THE LED BACKLIGHT DRVING CIRCUIT

Controlled electronic system power dissipation via an auxiliary-power dissipation circuit

Electrical load driving apparatus

Dimmable Timer-Based LED Power Supply

Circuits and methods for driving light sources

METHODS AND APPARATUS FOR LIGHTING EFFECTS IN A MOVING MEDIUM

Dimmer circuit and LED lighting device having said dimmer circuit

Fluorescent Lamp LED Replacement

LOSSLESS PRELOAD FOR LED DRIVER WITH EXTENDED DIMMING

Light driver control system

Damping resonance in a converter including a coupling capacitor

Apparatus and system for providing power to solid state lighting

Ripple Reducing LED Driver

Power supply apparatus

Liquid crystal display, LED backlight source, and the driving method thereof

Driver for LED backlight and LED backlight module and liquid crystal display

Liquid crystal display apparatus and LED backlight module thereof

Power supply with adaptive-controlled output voltage

Capacitive sensing enabled switch mode power supply and data transfer

System and method for controlling dimming of solid state lighting device

Quantization error reduction in constant output current control drivers

Controller and control method for controlling a switched-mode power converter in case of break-through situations

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

Dimmable LED reading light unit, arrangement of power supply and dimmable LED reading light unit and method of replacing a dimmable light unit by a dimmable LED reading light unit

Reduction of supply current variations using compensation current control

Ripple cancellation converter with high power factor

LED light source with reduced flicker

Semiconductor light source lighting circuit and vehicular lamp

Elevator interior illumination

Low EMI driver circuit

PRIMARY SIDE CONTROL FOR SWITCH MODE POWER SUPPLIES

Controlling circuit for an LED driver and controlling method thereof

Constant current drive for LED light source

LED backlight drive circuit

Controlling circuit for an LED driver and controlling method thereof

Load driver with first and second series converters

Bleeder circuit having current sense with edge detection

Light emitting diode illumination apparatus and control method thereof

Load control device having automatic setup for controlling capacitive and inductive loads

Output current compensation for jitter in input voltage for dimmable LED lamps

LED lighting device using ballast

Power conversion and control systems and methods for solid-state lighting

Power conversion apparatus and system for solid state lighting

Semiconductor device and power supply device

LED current control apparatus

LED driver

Reduced noise power converter using novel shield

Light-emitting diode lamp compatible with an electronic ballast generating preheating current

Switching power source device and control IC which are capable of performing constant power control

Controller of a power converter with adjustable jitter amplitude and method of generating adjustable jitter amplitude thereof

LED drive circuit with a programmable input for LED lighting

Resonant converter

Lighting source and lighting apparatus

Voltage supply arrangement and method for supplying voltage to an electrical load with transistor saturation control

LED driving device and LED lighting apparatus

Dimmable LED power supply with power factor control

Method of operating switch mode power converters, and controllers and lighting systems using such a method

Dynamic Means for Correcting for Load Imbalance and Harmonic Distortion

Constant current control circuit with PFC function and its PFC circuit

HIGH EFFICIENCY LED DRIVER CIRCUIT

Light emitting element drive apparatus and portable apparatus using same

Illuminating display systems

Input voltage transfer apparatus for light emitting diode lighting system

Dimmable LED lamp

LED lighting device and illuminating device

Driver circuits for solid state light bulb assemblies

Method and apparatus for altering a color of a mixture of light provided by mixing outputs of light from multiple lamps

LED driver operating in different modes

Dimmable LED illuminating system, driver of the illuminating system, and method of driving the illuminating system

Circuit and method for flicker suppression in light emitting diodes (LEDs)

Solid state lighting apparatus including separately driven LED strings and methods of operating the same

Drive circuit, illumination light source, and lighting apparatus

Handheld device and power supply circuit thereof

Controllers for solid state light bulb assemblies

Driver circuit for LEDs for time-of-flight calculation

Converter one pin sensing

Boost converter topology for high efficiency and low battery voltage support

High performance adaptive switched LED driver

Multiple stage sequential current regulator

Load driving apparatus relating to light-emitting-diodes

Non-contact and non-disposable electric induction LED lamp

Oscillation circuit

LED DRIVER CIRCUIT

ACTIVE DAMPING FOR DIMMABLE DRIVER FOR LIGHTING UNIT

Electronic ballast-compatible lighting driver for light-emitting diode lamp

Controller, a driver circuit and a method for controlling a dimmable LED lighting circuit, and a dimmable LED lighting circuit

Adapter circuit

Power control unit and method for controlling electrical power provided to a load, in particular an LED unit, and voltage control unit for controlling an output voltage of a converter unit

Current driver for an array of LED diodes

Current driver for LED diodes

LED drive circuit

LED light source

DC-DC converter protection circuit and protection method thereof

Voltage converting LED circuit with switched capacitor network

Systems and methods for a hysteresis based driver using a LED as a voltage reference

Power converter for an LED assembly and lighting application

System and method for controlling a light emitting diode fixture

Dimmable LED light fixture having adjustable color temperature

Light emitting diode load driving apparatus

Circuit for adjusting LED current

Transparent capacitive wireless powering system

Average current controller, average current control method and buck converter using the average current controller

Single stage forward-flyback converter and power supply apparatus for light emitting diode

DC boost topology circuit for backlight driving

Light source, pulse controller and method for programmabale pulse generation and synchronization of light emitting devices

Driver circuit of light sources and vehicle light provided with said driver circuit of light sources

Light emitting diode driving apparatus

Circuit arrangement for operating N parallel-connected strings having at least one semiconductor light source

LED backlight driving circuit and LCD device

Low frequency oscillator for burst-mode dimming control for CCFL driver system

Circuitry to control a switching regulator

POWER SUPPLY SYSTEM, RIPPLE SUPPRESSION CIRCUIT AND ASSOCIATED METHOD

Systems and methods for dimming of a light source

Dimming control method and apparatus and dimming system

System and method for implementing mains-signal-based dimming of solid state lighting module

Method for driving a light-emitting unit and circuit therefor

Light emitting diode replacement lamp

Light emitting apparatus

Systems and methods for controlling a power controller

Double-output high-efficiency LED light-modulating circuit

Power converter circuit for low power illumination device, control circuit thereof and method thereof

Power converter circuit for low power illumination device, control circuit thereof and method thereof

Back-up capacitor

Systems and methods for low-power lamp compatibility with a leading-edge dimmer and an electronic transformer

Portable lighting device

Method and apparatus for driving light emitting diode

Backlight driving circuit and liquid crystal display with the same

Light emitting diode backlight system the driving apparatus and driving method thereof

Direct type LED backlight and liquid crystal display thereof

Intelligent lighting system

High power factor primary regulated offline LED driver

Power quality enhancement

Driver device and driving method for driving an LED unit

DRIVER CIRCUIT FOR DIMMABLE SOLID STATE LIGHT SOURCES WITH FILTERING AND PROTECTIVE ISOLATION

AC-DC power converter

LED current control

Lighting system and control method thereof

Luminaire with switch-mode converter power monitoring

Method and LED apparatus for lighting with LED lighting controller

Lighting circuit, in particular with LED light sources

LED BACKLIGHT DRIVER CIRCUIT, LCD DEVICE AND DRIVING METHOD

Circuits and methods for driving a light source

Lighting control circuit, illuminating lamp using the lighting control circuit, and lighting device using the illuminating lamp

LED lighting apparatus, current regulator for the LED lighting apparatus, and current regulation method of the LED lighting apparatus

Lighting device and luminaire including the same

LED voltage adjustment device and drive system thereof

Light source drive circuit

Power converter control circuit

LED drive circuit

Load driving apparatus relating to light-emitting-diodes

Backlight unit and display device having the same

Light-emitting element failure detector and method for detecting light-emitting element failure

Short circuit protection

Single phase bridgeless boost converter for LED lighting applications

Reference voltage regulating method and circuit for constant current driver

Thyristor dimming circuit with lossless discharging circuit and method thereof

Direct current conversion circuit

LED light-adjustment driver module, backlight module and liquid crystal display device

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

AC/DC conversion bypass power delivery

LED lighting system and method

White light emitting diode (LED) lighting device driven by pulse current

Light-emitting element failure detector and method for detecting light-emitting element failure

Power supply circuit with a control terminal for different functional modes of operation

Feedback circuit for non-isolated power converter

Switched mode power supply

White light emitting diode (LED) lighting device driven by pulse current

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

Method for multiplying current of LED light bar and associated driving circuit thereof

Systems and methods for dimming control using TRIAC dimmers

Power supply device and lighting equipment provided with power supply device

Power Supply Device and Lighting Equipment Provided with Power Supply Device

Controlled converter architecture with prioritized electricity supply

FLORESCENT BALLAST TO DC POWER SYSTEM

Emergency lighting conversion for LED strings

White light emitting diode (LED) lighting device driven by pulse current

Load control device for high-efficiency loads

Dimming for constant current LED driver circuit

System and method for programming a configurable load control device

Driver device for driving an LED unit

Dimmable LED driver and method for controlling the same

Circuits and methods for reducing flicker in an LED light source

Electronic circuits for driving series connected light emitting diode strings

Driving circuit

DC-DC converter and organic light emitting display device using the same

Dual mode power supply controller with charge balance multipliers and charge balance multiplier circuits

MERGED-STAGE HIGH EFFICIENCY HIGH POWER FACTOR HB-LED DRIVER WITHOUT ELECTROLYTIC CAPACITOR

Dimmable torch

Power supply device and luminaire

Single switch driver device having LC filter for driving an LED unit

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

Constant current control device and television having the same

LED fluorescent lamp

SYSTEM CONTROL UNIT, LED DRIVER INCLUDING THE SYSTEM CONTROL UNIT, AND METHOD OF CONTROLLING STATIC CURRENT OF THE LED DRIVER

Dimmer circuit and lighting apparatus using the same

Buck-store and boost-restore converter

Method of driving LED lighting sources and related device

Temperature foldback circuit for LED load control by constant current source

Adaptive dimmer detection and control for LED lamp

Feed forward imbalance corrector circuit

Load control device for high-efficiency loads

Load control device for high-efficiency loads

LED light source

LED light source

Lighting device and voltage reduction method thereof

Boost converter of driver circuit with thermal compensation

Multichannel lighting unit and driver for supplying current to light sources in multichannel lighting unit

Light source apparatus and vehicle headlight using the same

Soft switching synchronous quasi resonant converter

Electronic converter, and related lighting system and method of operating an electronic converter

Solid state light source driver establishing buck or boost operation

Single wire serial interface

Power supply device and luminaire

Current source having an improved dimming device

Driving light emitting diode (LED) lamps using power received from ballast stabilizers

Light source driving device and illuminating apparatus using the same

LED flourescent lamp

Light emitting element drive apparatus and portable apparatus using same

Indication control circuit for indicating workload of electronic device

Method and apparatus for providing power to light strings

Load driving device and LED lighting appliance therewith

LED lamp system

Powering high-efficiency lighting devices from a triac-based dimmer

Solid-state light-emitting element drive device, lighting system and lighting fixture

Two-wire dimmer with improved zero-cross detection

POWER SUPPLY DEVICE, LUMINAIRE, AND POWER SUPPLYING METHOD

Lighting device for identifying and marking traffic areas of airports

Backlight panel circuit, back light panel and light emitting diode driver

Lighting component with independent DC-DC converters

LED DRIVING APPARATUS AND OPERATING METHOD THEREOF

Electronic ballast for operating at least one first cascade of LEDs and one second cascade of LEDs

Converter device

Start-up circuit and method for AC-DC converters using a depletion mode transistor

Method and apparatus for controlling a power adjustment to a lighting device

LED drive circuit

SCR dimming circuit and method

Controlled-silicon adapting LED driving circuit, method and switch mode power supply

Lighting control circuit, lamp, and lighting control method using the lighting control circuit

LIGHT-EMITTING DIODE DRIVING APPARATUS

Backlight unit and a display apparatus having the same

Charging scheme

Power conversion with controlled capacitance charging including attach state control

Solid state lightening driver with mixed control of power switch

Apparatus for driving a plurality of segments of LED-based lighting units

Color correcting device driver

Time division modulation with average current regulation for independent control of arrays of light emitting diodes

LED current control system for LED drive system with multiple dimming inputs

Dimming control for a switching power supply

PFC signal generation circuit, PFC control system using the same, and PFC control method

LED lighting device with incandescent lamp color temperature behavior

Illuminating device

Driving device and method for driving a load, in particular an LED assembly

LED controller circuit

Actuation device for a lighting device of a motor vehicle and motor vehicle

Operational transconductance amplifier feedback mechanism for fixed feedback voltage regulators

PFC signal generation circuit, PFC control system using the same, and PFC control method

Illuminating device

LCD device control system and LCD device

Bit packer for control signals

Power control system for current regulated light sources

Dimming device and dimming method thereof

Light source driving apparatus, light source device including the same and light source driving method of the light source driving apparatus

LED work light

Lighting device, lighting fixture, lamp, and sound emission prevention method

SINGLE STAGE FORWARD-FLYBACK CONVERTER AND POWER SUPPLY APPARATUS

Light emitting diode driving apparatus

Controller of an AC-DC converter for LED lighting

LED lamp and illumination device including the LED lamp

LED lighting device

Systems and methods for low-power lamp compatibility with a trailing-edge dimmer and an electronic transformer

Active thermal protection for switches

Dimming apparatus for LEDs

LED driver

Discharge lamp electronic ballast luminaire and vehicle with same

Acceleration of output energy provision for a load during start-up of a switching power converter

Boost converter for tracking input voltages

Power supply apparatus, electronic apparatus, and power supply control method

Dimmable LED driver and driving method

Buck converter for operating at least one LED

Power converter

High-efficiency LED driver and driving method

Circuit for controlling a lighting unit having a periodic power supply with a thyristor

Method and apparatus to control a power converter having a low loop bandwidth

Constant current control circuit