1. Detailed Electrical Generator Design

2. Build of Materials DescriptionPart #Cost Cost (1000)QuantityTotalTotal(1000)Link USB Port 87520- 0010BLF $0.71$0.381$0.71$0.38 http://www.mouser.com/ProductDetail/FCI/87520-0010BLF/?qs=x6EjVpvqMVP/2to87x7cdQ== Battery n/a $49.95$39.961$49.95$39.96 http://www.adafruit.com/products/1566#Description Motor Dc Geared 24V 30RPM 30573 $37.03$31.922$74.06$63.84 http://www.digikey.com/product-detail/en/30573/CRA206-ND/186746 Outdoor Speaker Wire 6 feet needed n/a $0.78$0.601$0.78$0.60 http://www.amazon.com/Cables-Waterproof-Speaker-sequential-markings/dp/B008J4XCB8/ref=pd_sim_sbs_e_1 Voltage Regulator 90400 $7.00$5.601$7.00$5.60 http://www.prodctodc.com/dc-35v30v-to-40v30v-converter-auto-boost-buck-voltage-regulators-power-supply-module-p- 67.html#.UqA3IsRDuz6 Bridge Rectifier GBU404 DI-ND $1.37$0.592$2.74$1.18 http://www.digikey.com/product-detail/en/GBU404/GBU404DI-ND/278605 Custom PCB Board(OSH Park) n/a $3.07 1 http://oshpark.com/orders/new/78avpdqg TOTAL$138.31$114.63

3. Buck-Boost Regulator Circuit 5V with 80% Efficiency *Ordered Premade*

4. DC Generator Motor 2.7W 24V 30RPM

5. Battery with Battery Protection 10,000mAh @ 5V Outputs up 2A Draws up to 1A Dimensions: 2.9" x 1" x 4.9" / 72mm x 24mm x 125mm Weight: 300g 80% Effecant

6. Simulation

7. Breadboard Proof of Concept Used a Linear Regulator which is less then 50% efficient Used a Hand Crank motor Used a 3.4V Battery

8. PCB Board Design

9. PCB Product Ready to Be Ordered TopBottom

10. Electrical Energy Harvesting Overview Battery = Average 80% Efficiency Buck-Boost = Average 85% Efficiency Motors = 2.7W each = 5.4W at 30RPM 3.456 W generation at 30RPM 691.2 mA generation at 5V, at 30RPM

11. Benefits to design Easily can covert to AC Motor if Needed. PCB Fits on top of the Buck-Boost Regulator therefore saving space. Battery can be charged by a wall charger too. Arduino boards and other electronics can also be power by battery therefore opening up further applications and not limiting it to phone charging.