App note: Energy harvesting – Eliminating battery replacements for IoT nodes with 196 HVC ENYCAP™

App note from Vishay demonstrating a circuit to power IoT sensors with energy storage capacitors. Link here (PDF) The V-harvester board is a photovoltaic (PV) harvesting backup demonstration circuit. It is a sophisticated stand-alone board charged using TEMD5080X01 micro PV cells or with micro USB. The input power goes into an e-peas low power AEM10941 […]

Make a supercapacitor with a DVD writer

Professor Kaner from UCLA demonstrates how to build a high-performance graphene-based supercapacitor with a DVD writer [PDF!]. The process uses a DVD writer to burn a pattern onto a plastic film coated with graphene. The resulting supercapacitor is flexible, and capable of storing enough energy to drive an LED for a few minutes. There has been […]