Driving device

Multi-string LED drive system

LED drive system for controlling an off-chip power supply

Line voltage control circuit for a multi-string LED drive system

Lighting device

Solid state lighting circuit and controls

Load driving apparatus related to light-emitting diode lamp and method thereof

Device and method for communication between an electronic module and a detection sensor in the presence of a light source

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

Load control device for a light-emitting diode light source

Forward converter having a primary-side current sense circuit

Inductor current detection circuit and LED driver

LED lighting device and illuminating apparatus using the same

Straight tube LED illumination lamp

System, method and apparatus for brightness adjusting of an illuminated logo

Light emitting diode driving apparatus, driving method of light emitting diode, and computer-readable recording medium

Lighting system and its luminaries with a respective lamp control module

LED lamp

LED lighting device

Multiple-input soft-switching power converters

LED driver with diac-based switch control and dimmable LED driver

Avoid audio noise of a LED driver during PWM dimming

Trailing edge dimmer compatibility with dimmer high resistance prediction

Switching current control circuit, LED dimmer system, and LED illumination device

LED lamp with variable input power supply

LED lamp

Indoor photovoltaic flasher

Switched mode power converter and method of operating the same

Light emitting diode driving circuit and driving method thereof

Power supply for LED illumination

Light source apparatus

Optical waveform generator

Circuits and methods for driving light sources

LED driver

Switchable luminance LED light bulb

ELECTRONIC DEVICE AND CONTROL CIRCUIT APPLIED THERETO

Interface circuit for a lighting device

Light-emitting diode driving circuit

High efficiency constant current LED driver

Lighting device and vehicle headlamp

Drive circuit, light print head, and image forming apparatus

Flexible electrical connection of an LED-based illumination device to a light fixture

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

Two-wire dimmer switch for low-power loads

High current switching converter for LED applications

High efficiency led drivers with high power factor

Method of driving a light source, light source apparatus for performing the method and display apparatus having the light source apparatus

Lighting unit with LED strip

Solid state lighting, drive circuit and method of driving same

LED driver adapted to electronic transformer

LED backlight driving circuit, backlight module, and LCD device

Method for improving operation lifetime of capacitor, capacitor control circuit structure and use thereof

Power supply device, vehicle-mounted device, and vehicle

Method and apparatus for controlling a lighting device

Systems and methods for dimming control using system controllers

Control circuit for a phase-cut dimmer and a method of controlling a phase-cut dimmer

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

Power supply and method for electric lighting device

Constant current control buck converter without current sense

Vehicle LED lighting device

Systems and methods of signal synchronization for driving light emitting diodes

Configurable LED driver/dimmer for solid state lighting applications

Circuit for the operation of at least one LED

Constant voltage dimmable LED driver

Active LED voltage clamp

Portable electronic device

Multiple chip voltage feedback technique for driving LED's

LIGHT EMITTING ELEMENT DRIVING CIRCUITS WITH DIMMING FUNCTION AND CONTROL METHODS THEREOF

Dimmable multichannel driver for solid state light sources

Current source and method for providing a driving current

Control circuit having signal processing circuit and method for driving the control circuit

Driver for two or more parallel LED light strings

Control circuit for LED backlighting

Load driving device and system, limiting point control method and device

Multi-channel two-stage controllable constant current source and illumination source

Semiconductor light source lighting circuit

LED lighting device using ballast for fluorescent lamp

Bleeder circuit for use in a power supply

Device and method for controlling current to solid state lighting circuit

Backlight drive voltage control device, backlight drive voltage control method and television

System and apparatus for a dual LED light bar

Flash driver to limit a load current of a flash and method to limit a load current of a flash driver

Liquid crystal display device

Method and apparatus to limit current overshoot and undershoot in light driver

Device and system for load driving

Lighting system with power factor correction control data determined from a phase modulated signal

LED driver circuit

Power converter device for driving solid state lighting load

Power supply having a plurality of light emission units

LED driving system and method

Light-emitting Diode (LED) Driving Circuit

Light-emitting diode driver circuit and LED light source

Power factor control for an LED bulb driver circuit

Power supply control system and device

CURRENT REGULATOR APPARATUS AND METHODS

Method and apparatus for phase-controlling a load

Load current control circuit

Delaying startup under fault conditions

LED driver circuit and method

Vehicle lighting device

LED fixture with integrated driver circuitry

Driving circuit for light-emitting element with burst dimming control

Circuit and method for driving a light-emitting diode

Early warning strobe for mitigation of line and load transients

Light driving apparatus and method thereof

Variable master current mirror

LED emitting device and driving method thereof

Dimmable light emitting diode lighting system

Adaptive bipolar junction transistor gain detection

Method and apparatus for starting up

Adaptive compensation for effects of cat-ear dimmers on conduction angle measurement

Phase angle measurement of a dimming circuit for a switching power supply

Driving device, light-emitting device and projector

LED illumination apparatus and led illumination system

DC-DC converter and organic light emitting display including the same

Power supply that maintains auxiliary bias within target range

LED driver circuits and methods

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

Systems and methods for multi-state switch networks

LED fluorescent lamp

Circuit for retro-lighting a display

Solid State Lighting System, Apparatus and Method with Flicker Removal

Medical light source device

Light emitting device driver circuit and control method thereof

Mixed load current compensation for LED lighting

Method and apparatus for active ripple cancelation

LED retrofit lamp

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

LED lighting circuit, LED illumination device, and LED illumination unit socket

Driving device, flasher device, and projector

Dimming driver with stealer switch

Light emitting component and light emitting device using same

Semiconductor light emitting element drive device and lighting fixture with the same

LED flash module, LED module, and imaging device

Power supply device and lighting device and lighting fixture using the same

Dimming circuit and method for LEDs

Post-mounted light emitting diode (LED) device-based lamp and power supply for same

Modular LED lighting having an emergency light function

Current driver circuit

Power supply device and lighting equipment provided with power supply device

LED-lighting system comprising an operational data memory

Power supply circuit and method for driving the same

Method and apparatus for detecting presence of dimmer and controlling power delivered to solid state lighting load

LED dimming circuit for switched dimming

Power Supply Device and Lighting Equipment Provided with Power Supply Device

Modular LED-lighting system

Controller for a switched mode power converter, a switched mode power converter and method of controlling the same

Smart dimming solution for LED light bulb and other non-linear power AC loads

Transformer voltage detection in dimmable lighting systems

Light emitting device, display device and method of driving light emitting device

Light emitting element driving device

Load control device for high-efficiency loads

Switching regulator and control circuit and control method thereof

LED lighting device

PWM control circuit, flyback converter and method for controlling PWM

Active bleeder circuit triggering TRIAC in all phase and light emitting device power supply circuit and TRIAC control method using the active bleeder circuit

Phase-shift dimming for LED controller and the method thereof

Light emitting diode circuitry, method for driving light emitting diode circuitry and display

Adjustable output solid-state lighting device

Digitally-controlled power factor correction circuits, methods and articles of manufacture

Drive voltage generation circuit for light emitting diode display device and method for driving the same

LED driver and method of controlling an LED assembly

PWM driving circuit and PWM driving method

Lighting circuit and illumination device

Dynamic power control for a two wire process instrument

Isolation of secondary transformer winding current during auxiliary power supply generation

Systems and methods of applying bleed circuits in LED lamps

Lighting device and illumination apparatus including same

Multi-mode flyback control for a switching power converter

Adaptive current control timing and responsive current control for interfacing with a dimmer

Dimming controlling circuit for LED

Open-circuit protection circuit of constant current driving circuit for light emitting diodes

LED driver apparatus

Systems and methods for regulating LED currents

Serial lighting interface with embedded feedback

Serial lighting interface with embedded feedback

Serial lighting interface with embedded feedback

Serial lighting interface with embedded feedback

LED driver apparatus

Dimming control for emergency lighting systems

Modular LED lighting system having emergency light function

Lighting apparatus and illuminating fixture with the same

LED driver protection circuit

Lighting apparatus and illuminating fixture with the same

Lighting apparatus and illuminating fixture with the same

Piezoelectric resonator light-emitting-diode (LED) driving circuit

Dimming driving system and dimming controller

LED lamp with half wave dimming

LED drive circuit and LED illumination unit

Switch-mode power supply, control circuit and associated dimming method

LED controller comprising a clocked current source

Insulated power supply device and lighting device

Circuit for driving light emitting elements

Adaptive load circuit

Load control device

Lighting device and illumination apparatus

LED power source with over-voltage protection

Driving circuits for solid-state lighting apparatus with high voltage LED components and related methods

Power supply circuit for multi-path light-emitting diode (LED) loads

System and method for driving light emitting diodes

LED lighting systems and methods for constant current control in various operation modes

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

Lighting power source and luminaire

Method and system to dynamically position a switch mode power supply output voltage

LED current balance apparatus

Organic light emitting display device

LED lamp driver identification

Earth leakage power supply with bypass

Lighting device including a drive device configured for dimming light-emitting diodes

Power supply for lighting and luminaire

LED driving apparatus, LED driving method and display apparatus using the same

Power supply unit for signal luminaires

Smart FET circuit

Device and method for driving LEDs

Method and apparatus for increasing dimming range of solid state lighting fixtures

Electrical wiring device for lighting control

Driver circuit for driving a load circuit

Power supply device

Semiconductor light emitting element drive device and lighting fixture with the same

LED driving apparatus, method for driving LED, and display apparatus thereof

Method and apparatus for LED string short circuit detection and protection

Flyback driver for use in a flyback power converter and related method

LED driving circuit

Apparatus for automatically controlling the illumination of LED lighting

AC LED dimmer and dimming method thereby

Low voltage system and method

Power supply device and lighting equipment

Semiconductor light source lighting circuit

Light emitting diode driving integrated circuit with a multi-step current setting function and method of setting a multi-step current of a light emitting diode driving integrated circuit

Apparatus, system and method for cascaded power conversion

Digital switching converter control

Lighting apparatus

Power supply device and light-emitting element drive device

Power supply device and light-emitting element drive device

Scalable buck-boost DC-DC converter

Color mixing of electronic light sources with correlation between phase-cut dimmer angle and predetermined black body radiation function

Isolated flyback converter for light emitting diode driver

Primary-side controlled switch-mode power supply controller for driving LED with constant current and method thereof

Flickering suppressor system for a dimmable LED light bulb

Damper circuit for switched dimming

Regulator for LED lighting color mixing

Parallel constant current LED driving units for driving a LED string and method of performing the same

LED driver apparatus

Illumination apparatus and power supply circuit

Device and method for using high efficiency ballasted lamps with electronic transformer

Adaptive circuit

Load compensation for an electronic transformer in a LED illumination system

Driver circuit for dimmable solid state light source

Switching power supply with optimized THD and control method thereof

Driving circuit for light emitting element, light emitting device using same, and display apparatus

LED driver

LED emitting device and driving method thereof

Device for supplying a plurality of LED units with power

Method and apparatus for adjusting light output range of solid state lighting load based on maximum and minimum dimmer settings

Light emitting diode luminaire for connection in series

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

Lighting device and illumination apparatus using same

Lighting system

Discharge lamp system and controlling method of the same

LED driver and the method thereof

LED driving device, illuminator, and liquid crystal display device

Method for feeding light sources and related device

Control apparatus incorporating a voltage converter for controlling lighting apparatus

High voltage LED and driver

Power supply device with smoothing capacitor and falling voltage chopper circuit

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

Electronic circuits and techniques for maintaining a consistent power delivered to a load

Variable correlated color temperature luminary constructs

Drivers for loads such as light emitting diodes

Input voltage sensing for a switching power converter and a triac-based dimmer

Transformer-isolated LED lighting circuit with secondary-side dimming control

Power control device, backlight unit, and liquid crystal display device

Power efficient driving circuits of light source for projectors

Light emitter driving device and lighting appliance therewith

Light emitting device array driver circuit and current splitter circuit and method of splitting current therefor

Dimmer system and control system and method thereof

TRIAC dimming systems for solid-state loads

Constant current driving circuit and light emitting diode backlight apparatus using the same

AC-DC dual-use LED driving circuit

Pulse width modulation fault mode for illuminating device drivers

Backlight module and display apparatus

LED power supply device

Primary-side control of a switching power converter with feed forward delay compensation

Control data determination from primary-side sensing of a secondary-side voltage in a switching power converter

LED driving apparatus and method

Backlight unit and method for driving the same

Input current regulator, driving method thereof, and disable circuit thereof

Dimming signal generation device and illumination control system using same

Controlling the light output of one or more LEDs in response to the output of a dimmer

Variable output module and method for electrical signal output

Operating circuit applied to backlight and associated method

Vapor lamp assembly technique

Switch mode power supply and control method thereof

Dimmable LED lamp

Controlled power dissipation in a switch path in a lighting system

LED lighting circuit

Drive circuit for realizing accurate constant current of multiple LEDs

Apparatus or circuit for driving a DC powered lighting equipment

LED drive circuit and LED illumination light

Multi-path constant current driving circuit