High-efficiency multi-string LED driver based on constant current bus with time-multiplexing control


A high-potency multi-string LED driver based on constant current bus with time-multiplexing control theme is proposed and analysed. Every LED string is connected to the constant current bus, which is provided by the output of a front-end high-efficiency converter. The current of each LED string can be independently controlled by the flip on duty ratio of its time-multiplexing switch. A capacitor is connected to the current bus to supply a current flowing path for constant bus current when none of the LED string is connected to this bus. It needs only one output filter capacitor, which makes circuit volume little and price low. Finally, a 7.two W 2-string LED driver is provided to verify the studied results.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

PROJECT TITLE :High-Efficiency Step-Down Converter ViaCoupled Inductor - 2016ABSTRACT:In this study, a high-efficiency single-input multiple-output (SIMO) step-down converter is designed. The coupled-inductor-based SIMO step-down
PROJECT TITLE :Static Regulated Multistage Semiactive LED Drivers for High-Efficiency ApplicationsABSTRACT:Semiactive light-weight-emitting diode (LED) drivers with high potency that regulate LED power statically against source
PROJECT TITLE :A Flexible Piezoelectric Pulsewave Energy Harvester for Application to High-Efficiency Multi-Functional Skin PatchesABSTRACT:A piezoelectric pulsewave energy harvester composed of flexible 3-layers generates electrical
PROJECT TITLE :Design and Analysis of a High-Efficiency DC–DC Converter With Soft Switching Capability for Renewable Energy Applications Requiring High Voltage GainABSTRACT:Renewable sources like solar photovoltaic (PV) and
PROJECT TITLE :Fast coding unit selection and motion estimation algorithm based on early detection of zero block quantified transform coefficients for high-efficiency video coding standardABSTRACT:High-potency video coding (HEVC)

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry