Kinetic Charger for Smartphones Brings New Meaning to Mobile

AMPY is an innovative kinetic charger that captures a person’s movement and converts it to charge for their mobile device. Tejas Shastry, Mike Geier and Alex Smith began developing the device in 2013 as students in an entrepreneurial class at Northwestern. They worked through dozens of prototype iterations involving 3D printed parts while fine-tuning its patent-pending, proprietary linear inductor. The user’s motion drives a magnet and coil system that generates electricity, which goes into a lithium ion battery for storage. Plug an iPhone, Android phone or other wearable device into AMPY’s USB port to begin charging.

The team at AMPY entered and won Proto Labs’ Cool Idea! Award, a service grant that will be used towards internal thermoplastic bobbins in the device. AMPY is now pilot testing with consumers while accepting online preorders at for market-ready devices that are slated to ship in July 2015. Read our full case study on the development of AMPY.

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