[[alternative]]The Design of Circuit Sharing in Energy Inverter and Receiver

碩士電機工程學系[[abstract]]由於能源逐年的在減少，政府近年來不斷的在提倡能源再生或綠色家園。在本篇論文中我們設計一個無線電路名為無線電波能量轉換系統(WECS)，以接收在空氣中電磁能量，把接收的射頻載波(Carrier)經過倍壓電路轉換成直流電源來對充電器充電。無線電波能量轉換系統主要組成為天線、整流電路和充電電路。為證明無線電波能量轉換系統的可行性，在論文裡我們使用主動式電子標籤作為充電和放電實驗之負載。在無線電波能量轉換系統的實驗結果中，充電18天可達到2.25伏特，若使用50歐姆電阻來進行放電，則190秒放電完成。所以, 提出的電路可達到回收自然能量之目標。[[abstract]]ABSTRACT Due to serious reduction of power energy, energy regeneration is recommended by the government in recent years. In this thesis we design a radio circuit named wireless energy conversion system (WECS) to receive the electromagnetic energy from the air. The radio frequency (RF) is received and rectified as direct current to supply load or store in cell or capacitance. The WECS mainly consists of antenna, rectifier and charge circuit. To verify the possible feasibility of WECS, in this thesis we use the active tag as the load for charge-discharge experiments. Experimental results show that the WECS could reach 2.25V for charging 18 days and it could completely discharge during 190 seconds if implements with the resistance of 50 ohm. Therefore, the proposed circuit can reach the goal of recycle nature energy. Keyword: wireless powering system, Carrier, GSM base transceiver station, Schottky barrier diode, wireless energy conversion syste