The SSHC compaction method using capacitor reusing technique

カテゴリ：国際会議

論文No：A2

グループ名：【C】AVIC2025

発行日：2025/10/20

著者名：Yusuke Kakinuma (Tokyo University of Science), Ryoichi Miyauchi (Tokyo University of Science), Akira Hyogo (Tokyo University of Science)

キーワード：Piezoelectric energy harvesting,rectifier,Synchronized Switch Harvesting on Capacitors (SSHC)

要約(英語)：This paper presents a capacitor reusing technique for Synchronous Switch Harvesting on Capacitor (SSHC) circuits in piezoelectric energy harvesters (PEH). PEH is a technology that converts mechanical vibration energy into electrical energy using piezoelectric transducers. However, such devices suffer from power loss caused by parasitic capacitance. SSHC is one of the techniques developed to reduce this loss, based on switchedcapacitor circuits. To achieve effective charge inversion, however, it often requires either large capacitance values or multiple SSHC stages. In the proposed circuit, the switch configuration of SSHC is modified to allow capacitors to be connected in series. This enables capacitor reuse, making it possible to achieve 2^(n-1) stages of operation using only n capacitors. Simulation results confirmed that the voltage flipping efficiency (VFE) improved by up to 12.

本誌掲載ページ：5-8p

原稿種別：英語

PDFファイルサイズ：820Kバイト