本計畫預計開發一創新之微型混合式旋轉發電機，可利用環境中的轉動，將機械能造成的磁通量變化轉換成感應電動勢。由於電磁式與磁電式發電都以磁場變化作為驅動源，因此混合式發電機制將可達到高輸出電壓與高功率密度之設計需求，且不會顯著增加元件體積。發電機實體將在基板上製作出三維立體導電結構，並搭配外部旋轉機構與內部磁鐵陣列，而旋轉式運動將透過馬達與旋轉平台實現。本計畫採用之旋轉式結構設計，因體積小易安裝於機械裝置上與電路進行整合，透過開發低損耗的交直流轉換儲能電路，將可提供感測器之供電裝置使用。此外為了進一步配合實際情況，量測時將進行轉速與加減速等旋轉參數的調整，觀察發電機於不同參數下產生之電能，以便未來針對各種應用做最佳化設計。 ;A hybrid micro-generator for harvesting rotation energy from environmental activities is proposed. The generator can induce electrical power from the change of external magnetic flux based on Faraday's law of induction and magnetoelectric effect. For fabricating conducting coils, a 3D forming system will be used to build 3D coils with multiple degrees of freedoms. For fabricating magnetoelectric device, piezoelectric and magnetostrictive materials will be used. By integrating both structures with rotation mechanism and magnets, the hybrid generator is expected to supply efficient power for micro sensors, compared with typical generators. In addition, the output performances of the proposed generator under various rotation speeds and accelerations will be studied and demonstrated.
