Final Year ProjectFinal Year Project

Initial PresentationInitial Presentation

Title:Title: Solar Powered Battery Charging System Solar Powered Battery Charging System

Supervisor:Supervisor: Maeve Duffy Maeve Duffy

BackgroundBackground

The aim of this project is to design, build The aim of this project is to design, build and test and test a system that will control the a system that will control the

charging of multiple mobile phone charging of multiple mobile phone batteries simultaneously.batteries simultaneously.

BackgroundBackground

Review output power levels of available Review output power levels of available solar panelssolar panels

Develop system to control the charging of Develop system to control the charging of multiple mobile phone batteriesmultiple mobile phone batteries

Consider how the circuit/system design Consider how the circuit/system design will change for larger panelswill change for larger panels

System will include power management System will include power management functions and information displayfunctions and information display

Proposed Time Scale Proposed Time Scale

September/October:September/October:

Review of Solar Review of Solar PanelsPanels

Review Mobile Review Mobile Phone battery Phone battery chargerschargers

Proposed Time ScaleProposed Time Scale

October/November:October/November:

Design DC/DC converterDesign DC/DC converter Suitable circuit Suitable circuit for range of source and load for range of source and load

voltage and power levelsvoltage and power levels Determine switch specificationsDetermine switch specifications Simulate in SPICESimulate in SPICE

Proposed Time ScaleProposed Time Scale

November:November:

Build and test DC/DC converter:Build and test DC/DC converter: Build prototype circuit on strip boardBuild prototype circuit on strip board Test and debug circuitTest and debug circuit Test circuit using solar panel as sourceTest circuit using solar panel as source

Proposed Time ScaleProposed Time Scale

January:January:

System and software interface designSystem and software interface design Specify system functionality Specify system functionality Build and test additional hardware elements Build and test additional hardware elements Implement user interface in LabviewImplement user interface in Labview

Proposed Time ScaleProposed Time Scale

February:February:

System integration and developmentSystem integration and development Test complete systemTest complete system Design modifications required for larger Design modifications required for larger

panelspanels Estimate energy savings provided by DC/DCEstimate energy savings provided by DC/DC

Progress to DateProgress to Date

Review of Solar PanelsReview of Solar Panels

Review of Mobile-Phone battery chargerReview of Mobile-Phone battery charger

SPICESPICE