CS-EE 480 Fall November, 2005 University of Portland School of Engineering Project Molalla Microprocessor-based Charge Controller Team Andrew Melton John Turner Antoinette Realica Advisor Dr. Lu Industry Representative Mr. Andrew Hui Intel Corp.

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Overview Introduction Scorecard Additional Accomplishments Plans Issues/Concerns Conclusions

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Introduction Build a microprocessor-based charge controller –Select between pre-existing charging source and solar-powered charging source Molalla Product

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Introduction

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Introduction Photo taken from: Implemented in hybrid vehicles –Environmentally-friendly Flexibility in vehicle power source selection –Present and future technologies

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Scorecard Select boost topology [done] Acquire materials [done] –December milestone can be met Further PSpice Modeling [in progress] Research [in progress] Small scale model [dropped]

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Additional Accomplishments Plan Approved Budget Approved Batteries Acquired

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Milestones NumberDescriptionOriginal 10/28/05 Previous 10/28/05 Present 10/28/05 1Product Approval10/07/05 10/05/05 2Plan Approval11/11/05 3Design Release12/09/05 4Boost Converter Stage 1 Built12/15/05 5Parts Received01/27/06 6Voltage and Current Sensor Built02/10/06 7TOP’s Approval02/24/06 8Boost Converter Stage 2 Built03/03/06 9Prototype Release04/07/06 10Founder’s Day04/11/06 11Final Report04/13/06

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Concerns/Issues PIC Control of Boost converter –Hardware vs. software Creating effective PIC transfer function Physical layout of boost converter Staying on schedule and within budget Maintaining efficiency –large voltage gain = high component stresses

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Conclusions Progress –Paperwork and Milestones for December Important Design Concerns

CS-EE 480 Fall November, 2005 University of Portland School of Engineering Questions ?