AEM20940 Thermal Energy Harvesting IC e-peas AEM20940 Thermal Energy Harvesting IC is an integrated Ambient Energy Manager (AEM) that extracts DC power from a thermoelectric generator (TEG), simultaneously storing energy in a rechargeable element and supplying the system with two independent regulated voltages. The AEM20940 extends battery lifetime and eliminates the primary energy storage element in many wireless applications, such as industrial monitoring, home automation, and smart agriculture.