SUN-to-USB

Built for a group project for a design course I took, this solar charger prototype was intended to charge cell phones on the go. While the unit consistently delivered the intended 5 volts, the current was insufficient to charge most phones. Next version includes a built in battery, able to store power and deliver at up to an amp.

Open Housing View

Here the two panels of the housing are open to show the solar panel and USB regulator module.

Design Review Booklet

Fabrication

Machining housing in aluminum. Here an auto-tapping head in a vertical mill cuts the very fine 2-56 threads for mounting the circuit board.