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Energy Harvesting from Human Body for Smart Watches

Abitha Thangam M, Kousika R., Suba Ranjani T., Suruthi M., Madhumithra S.

Abstract


Energy harvesting has been growing in demand and there is a variety of ongoing research to discover techniques for supplying electronic devices with a life time of power. As a solution compatible energy harvesting technique from the body can be an alternative approach to power devices. Batteries are the primary source of power supply for almost all biomedical devices. But it has been quite inconvenient in replacement of batteries. Heat is one of the many sources of energy from the body that can be harvested to power the wearable biomedical applications. The thermal energy is harvested from a single thermoelectric cooler. The heat from the part of the human body (Palm) is sensed at the hot side of the TEC12706 and heat sink is given at the cold side and thus the difference in temperature is given as voltage output which is insufficient to power the smart watches. This difficulty is overcome by LTC3108 to amplify millivolts to considerable voltages which is sufficient to power smart watches.

 


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References


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