壓電能量擷取器應用於感應線圈驅動同步切換電路之自供電系統設計

Abstract

近年來能源耗竭與替代能源的議題逐漸受到重視，壓電材料的安全性、穩定性佳及體積小之優勢，使其成為重要的替代能源之一。 此壓電能量擷取器所擷取之能量能成功應用於電感式同步切換電路，此外，藉由將從陶瓷壓電材料擷取之能量作分配，將一部分提供給原感式同步切換電路，另一部分提供給其它電子元件，使整體電路能達到自供電之成效，並成為一高效率的能量擷取系統。最後，本論文利用磁場感應線圈之方式成功驅動切換開關，優點為磁場感應線圈的訊號擁有低雜訊使之在控制上更顯容易並減少濾波電路的設計以降低能量的損耗。

In recent years, energy depletion and alternative energy issues gradually are taken seriously, the piezoelectric material security, good stability and small size of the advantage, making it an important alternative energy sources. The energy derived from the piezoelectric power harvester could be applied to the circuit of Synchronized Switch Harvesting on Inductor (SSHI) successfully. Moreover, by allocating the energy into two parts, one for SSHI circuit, the other for electric components, the energy is enough to supply the whole circuit, which makes it become a self-powered system with high efficiency. In this paper, the method of electromagnetic induction is used to drive the switches because its produced signals have low noises. This advantage makes it easier to control, decreases the design of filter circuits in the whole system and deduces the energy consumption.