06 Jan '18, 3pm

Extending the Life of #Sensor Nodes through #Power-Efficient Design

IoT nodes require operation for many years without a primary battery change in order to keep maintenance to a minimum. Some types of systems even make it possible to operate with very little battery power, relying on an energy harvester such as a solar array or small turbine to provide the long-term power requirements. The fundamental drawback of energy harvesting designs is that the source of power is not reliable except in cases such as flow meters where the movement of fluid is expected to be continuous, and the harvester can absorb some of the kinetic energy from that flow. In most cases, the best that the harvester can achieve is a flow of energy at low continuous levels. Very often there are peaks and troughs in delivery that, unfortunately, are unlikely to coincide with the peak demands of the system. This calls for the storage of temporarily excess energy within a ...

Full article: https://www.digikey.com/en/articles/techzone/2018/jan/ext...

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