Nowadays the reuse of wasted energy is an important task for the majority of the fields, particularly for the automotive one. This aims at more efficient systems and reducing pollution, making a product compatible with the requests of active regulations, environment, consumers and producers. With regards to this, in the automotive field, the Exhaust Gas Recirculation (EGR) is becoming an important promise in the energy improvement. The present thesis deals with the modelling, design, control and implementation of a DC-DC power converter to recover energy from the exhaust system in a vehicle. The strategy is to convert the heat wasted energy into electricity by means of a thermoelectric generator (TEG), which is based on Seebeck effect.