壓電獵能技術可將振動能轉換為電能，可取代電池成為綠能環保之供應能源，其中主要影響轉換效率的為其介面電路。壓電獵能介面電路將壓電材料藉由振動能產生的交流電能轉換直流儲存，對壓電換能器的輸出功率影響極大。本論文利用TSMC 0.18-μm 1P6M 製程實現所設計之壓電獵能介面電路，提出多重切換電感(Multi-Switched Inductor)技術以降低電感電流極值因而提升介面電路轉換效率與獵取功率；並以自啟動技術實現免電池壓電系統，使獵能應用更為廣泛。整體獵能介面電路包含負電壓轉換(Negative Voltage Conversion)電路、切換電感(Switching Inductor)電路、啟動電路與多重切換控制邏輯電路。
壓電獵能介面電路實驗量測結果，可於免電池操作，獵取能量100 μW至1 mW。並藉由多重切換之控制改善傳統切換電感電路損耗，峰值轉換效率為86.3%，整體面積為0.672 mm × 0.563 mm。

In this thesis, TSMC 0.18-μm 1P6M process is applied to implement the design of the energy harvesting interface circuits. A multi-switched inductor technology is proposed to improve the conversion efficiency of the interface circuit power and the harvesting output power. The loss of the traditional switching inductor can be improved by the multi-switching control technologies to lower the maximal inductor current. Moreover, a self-startup is included to fulfill battery-free piezoelectric systems, so the energy harvesting technologies can be applied more widely. The overall energy harvesting interface circuit consists of a negative voltage conversion (NVC) circuit, a switching inductance circuit, a startup circuit, and a multiple switching control logic circuit.
The measured results of the proposed piezoelectric interface circuits show that the energy harvester can scavenge power of 100 μW to 1 mW. The loss of the traditional switching inductor can be improved by the multi-switching control technologies. The peak conversion efficiency can be achieved to 86.3%. The overall chip area is 0.672 mm × 0.563 mm.

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