Detailed Electrical Generator Design

Build of Materials DescriptionPart #Cost Cost (1000)QuantityTotalTotal(1000)Link USB Port BLF $0.71$0.381$0.71$ Battery n/a $49.95$39.961$49.95$ Motor Dc Geared 24V 30RPM $37.03$31.922$74.06$ Outdoor Speaker Wire 6 feet needed n/a $0.78$0.601$0.78$ Voltage Regulator $7.00$5.601$7.00$ html#.UqA3IsRDuz6 Bridge Rectifier GBU404 DI-ND $1.37$0.592$2.74$ Custom PCB Board(OSH Park) n/a $ TOTAL$138.31$114.63

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

DC Generator Motor 2.7W 24V 30RPM

Battery with Battery Protection 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

Simulation

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

PCB Board Design

PCB Product Ready to Be Ordered TopBottom

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

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.