Cost-Effective LED Dimming Driver With Single Chip Design for Smart Lighting System

Dimming LED Lighting

LED lighting has the potential to offer many benefits to the user and to society as a whole. Very high efficiency together with extremely long life expectancy of the LEDs reduces the energy consumption and the use of resources, and can offer low lifecycle cost. In order to become widely accepted, LED lighting must provide dimming capability at least equivalent to that offered by traditional inc...

Design for Low Power HB-LED Lighting

This paper presents an improved power quality converter (IPQC) based power supply design for high brightness Light Emitting Diode (HB-LED) low power lighting. The IPQC circuit uses a Cuk buck-boost converter to operate it in discontinuous conduction mode (DCM) using voltage follower technique for the mitigation of harmonic contents present in the AC mains current. Subsequently reduction in harm...

A Single-Stage LED Driver Based on BCM Boost Circuit and LLC Converter for Street Lighting System

DC Grids for Smart LED-Based Lighting: The EDISON Solution

This paper highlights the benefits and possible drawbacks of a DC-based lighting infrastructure for powering Light Emitting Diode (LED)-lamps. It also evaluates the efforts needed for integrating the so called smart lighting and other sensor/actuator based control systems, and compares existing and emerging solutions. It reviews and discusses published work in this field with special focus on t...

On-Off Switching Patterns for Smart LED Lighting

This paper formulates a new communication problem for smart LED lighting systems designed for light effect control. It introduces the key requirements imposed on the design of the LED driving sequences, which include multiple access, arbitrary duty cycle and no disturbance caused on the normal illumination function. We propose a class of orthogonal sequences that meets these requirements.