Energy Harvested from Respiratory Effort

Presently, a high cost of some medical equipment is due not only the sophisticated technology, but also because the cost of his maintenance. The electronic devices implanted in the human body are examples for this constant maintenance, requiring sophisticated medical operations. Extra weight and volume addition to the electronic devices are also a disadvantage, limiting the autonomy of such devices. An alternative to replace the batteries as power sources is to obtain the energy from the human body. In this work we present our prototype of Breathing Energy Transducer (BET) for an efficient energy conversion at fixed 2.6V from chest movements during breathing. A series of experiments were performed in order to calculate the power that could be generated from the respiratory effort during normal and deep breathings.