1. Design Team Ten Final Presentation ECE 480 FS08

3. Evolution of the Battery/Supercapacitor Hybrid System System 2 System 1System 3 System 4 - 51.8 Volts - 5 x 165F Modules - 905 Farads Total - 51.8 Volts - 56 Li-Po Cells - 4 PCMs - 51.8 Volts - 28 Li-Po Cells - 2 PCMs - 2 x 165 F Modules - 330 Farads Total - 51.8 Volts - 14 Li-Po Cells - 1 PCM - 85 Farads Total - 3 Solid-State Relays - 1 Digital Relay Controller

4. Comparing Systems System System 2System 1System 3 System 4 Limitations: - Excessive Weight - High Cost - Low Energy Estimated Cost: $9000 Limitations: - Excessive Weight - Low Power - Limited Cycle Life Estimated Cost: $5900 Limitations: - Relatively High Cost - Performance Limited by Voltage Dependency Estimated Cost: $7400 Limitations: - None Estimated Cost: $4200

5. Our Prototype Battery/Supercapacitor Hybrid System

6. Battery Components Cells: - Rechargeable Lithium Polymer - 3.7 V Per Cell - 21 Amp/Hours Protection Circuit Module: - Protects Cells from Overcharge & Overdischarge - Balances Voltages Between Cells - Short Circuit & Reversed Polarity Protection

7. Battery Specifications - 14 Cells - 51.8 Volts - Integrated PCM

8. Super Capacitor Array - 165 Farads - 48.6 Volts Nominal - Internal Monitoring Circuitry - Cell Balancing Function - High Power Density - 31 lbs

9. Control System Solid-State Relays: - Remote Operated Switch - No Moving Parts - Use N-Channel MOSFETS - Rated at 40 Amps & 200 Volts Programmable Relay Controller: - Controls Timing & Activation of the Relays - 24 V - Controls Up To 16 Relays

10. System Schematic

11. 1 Kilowatt Load Specifications - Two 5Ω Resistors - 1 kW Rated Each - Connected In Parallel - 2.5Ω Circuit - 6’ x 9” Heatsink