A Battery-Less Energy Platform for Low-Power Energy Sources Powering Multiple Loads

This brief presents a battery-less energy platform that supports simultaneously multiple loads and receives energy from a single ambient energy source merely. The proposed work can operate in either the burst or continues mode operation; thus, the platform achieves a wide dynamic load range from 1 μW to 284 mW. The proposed work, implemented with off-the-shelf components, achieves a peak efficiency of 65.63% and regulates outputs to roughly 3.7 V. As compared to prior works, the proposed work achieves the widest dynamic load range (284, 000×), operates in both the burst and the continuous mode supporting multiple loads without relying on the battery as well as meets the goal of self-sustainability, i.e., no need of extra power source (e.g., battery) other than the ambient energy source.