Final Product and Testing.

The results show that the cantilever beam works better for energy generation than the direct pressure method illustrated through the deformation factor of each. Further physical testing has then been conducted using the chosen material proving that that the applied stress is directly proportional to the generated voltage and that the Piezo generated 16V (direct pressure) and 36V (cantilever beam) therefore illustrating the deformation is greater under the cantilever beam, thus this being the best method which was then used for the energy harvesting application. 

Numerous Piezo Plates connected in an array configuration has been used to step charge an input capacitor through a bridge rectifier. The UVLO monitors the voltage across the capacitor and only allows power flow whilst the capacitor is charged 250mV above the set input voltage. A DC – DC converter regulates the voltage to 3.5V it was then found that this would turn the load on and off. i was then able to stabilize this light source and create extra accessories to demonstrate the full benefit of this power source