ENERGY HARVESTING SYSTEM INCLUDING PIEZOELECTRIC TRANSDUCER HAVING IMPROVED BANDWIDTH

摘要

An energy harvesting system including a piezoelectric transducer having an improved bandwidth according to the present invention comprises: a case; a cantilever; an elastic member; and a piezoelectric transducer. The case includes a reception part inside. The cantilever is formed to have one end fixed to a wall surface of the reception part and the other end movable upward and downward by external vibration. The elastic member has one end fixed to an upper part of the cantilever and receives vibration transferred from the cantilever to generate a vibration displacement. The piezoelectric transducer is disposed on an upper part of the elastic member and is deformed depending on the vibration displacement of the elastic member thereby converting vibration energy into electrical energy.