ENERGY HARVESTING SYSTEM WITH SELECTIVELY ACTIVATABLE HARVESTING INTERFACE, AND METHOD OF ENERGY HARVESTING

摘要

An energy-harvesting system includes a transducer to convert environmental energy into a harvesting electrical signal. A storage element stores electrical energy derived from conversion of the harvested environmental energy. A harvesting interface supplies an electrical charging signal to the storage element. The harvesting interface is selectively connected to the storage element in response to a control signal. The control signal causes the connection when the harvesting electrical signal exceeds a threshold. Conversely, the control signal causes the disconnection when the harvesting electrical signal is less than the threshold.

主权项

1. An energy harvesting system, comprising:
a transducer configured to harvest environmental energy and convert harvested environmental energy into a harvesting electrical signal; a storage element configured to store electric energy derived from conversion of the environmental energy harvested by the transducer; a harvesting interface coupled to the transducer and configured to supply a charge electrical signal to the storage element as a function of the harvesting electrical signal; and a selective connection device configured to connect a supply terminal of the harvesting interface to the storage element when the harvesting electrical signal is in a first relationship with an activation threshold and to disconnect the supply terminal of the harvesting interface from the storage element when the harvesting electrical signal is in a second relationship with the activation threshold.