A demonstration video showcasing how a small energy harvester circuit (using an LTC3108) can be used to harvest low levels of heat energy from a thermoelectric generator (TEG).
The TEG can be heated on one side with a low to medium heat source (i.e from body heat or waste heat from an appliance) and cooled on the other side using an aluminium heat sink.
Using magnets on the side of the heat sink we can hold the TEG module and circuit onto a metal appliance for energy harvesting, such as a steel central heating boiler, radiator or piping.
In this demonstration, the energy harvester circuit is used to power a colour cycling RGB LED.
It is hoped that small energy harvesters will soon be universally incorporated within microelectronics such as IOT devices, sensor stations, WiFi routers, drones and wearable electronics.
Incorporating energy harvesting helps devices become more autonomous as by including the ability to charge and power themselves using the environment and waste energy sources such as waste heat produced by machines.