發明
中華民國
106120549
I 629846
無線能量擷取與管理裝置
國立交通大學
2018/07/11
本發明係揭露一種無線能量擷取與管理裝置,包含互相連接之一無線接收器、一第一整流器、一第一電容器、一電壓偵測電路、一第一電子開關、一第二整流器與一第二電容器。無線接收器接收一無線射頻訊號,並將其轉換為具有一輸入功率之一交流電壓。第一整流器接收交流電壓,並將其轉換為第一直流電壓,以供一負載使用。電壓偵測電路預設第一電壓值,並偵測第一直流電壓。在第一直流電壓大於第一電壓值時,電壓偵測電路導通第一電子開關,第二整流器透過第一電子開關接收交流電壓,以平分第一整流器接收之輸入功率,達到高能量轉換效率。 A device for harvesting and managing wireless energy includes a wireless receiver, a first rectifier, a first capacitor, a voltage detection circuit, a first electrical switch, a second rectifier and a second capacitor connected to each other. The wireless receiver receives a wireless RF signal and converts it into an AC voltage with an input power. The first rectifier receives the AC voltage, converts it into a first DC voltage and transmits the first DC voltage to a load. The voltage detection circuit has a first voltage value and detects the first DC voltage. When the first DC voltage is larger than the first voltage value, the voltage detection circuit turns on the first electrical switch and the second rectifier receives the first DC voltage through the first electrical switch to share the input power received by the first rectifier, thereby achieving the high energy conversion efficiency.
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