<p>➀ A session at the IEEE International Solid-State Circuits Conference focused on energy harvesting ICs; </p><p>➁ Delft University of Technology and Fudan University presented an 'inductor-less capacitor-less' IC that connects to both electromagnetic and piezoelectric harvesters; </p><p>➂ The IC uses the inductance of the electromagnetic harvester for energy extraction and storage.</p>