1. Hardware-in-the- Loop Testbed Team 186

2. Project Collaborators Team Members: o Aaron Eaddy – EE o Ken Gobin – EE/COMPE o Douglas Pence – ENGR PHYS/EE Team Advisor/Sponsor: o Sung Yeul Park – Associate Professor

3. Outline Background Requirements: o Battery Charger o Microcontroller o Sensor Circuit Timeline Budget

4. Background Battery: o Chemical energy  Electrical energy o Single use vs. multiple use Proof-of-concept o Hardware-in-the-Loop Testbed: State of Health State of Charge Remaining useful life Voltage, current, and temperature Expandable Improve batteries

5. Requirements Battery Charger Microcontroller Sensor Circuit

6. Battery Charger System: o 24 - 48V  12V Charging Algorithm: o Constant current o Increased constant current o Constant Voltage (14.6V) o Decreased constant voltage (12.5V)

7. Battery Charger

8. Microcontroller TI DSP F28335 o 6 data/address lines, 59 GPIO, ADC o Simulink Main uses: o ADC o GPIO o PWM

9. Sensor Circuit Voltage Sensor Current Sensor o Internal Impedance of each Cell. Temperature Sensor o Ambient o Battery Surface Amplification o Integration with ADC Scaling for Multiple Cells Requirements o 30V Integration

10. Sensor Circuit

12. Timeline Research Item OctNovDec JanFebMarApr 3412341 Prototype Design Schematics + Part List x x PCB Layoutx x xx Parts Order x x PCB Order xx Board Assembly x x Board Testing Hardware x Functions x x Algorithm xx x Power Test x x Revision x x

13. Budget Total Budget $1,000 Current Expenditure Estimate: o TI F28335 DSP -$129.36 o Sensing Circuit -$350.00 o Miscellaneous -$50.00 Budget Surplus Estimate $470.64