Power transmission device and power transmission system

The invention discloses a power transmission device and a power transmission system. The power transmission device comprises a substrate, a first wafer, a first bump, a second bump and a first capacitor. The first wafer is used for receiving a first reference voltage signal and a second reference voltage signal. The first bump is located between the substrate and the first wafer and is used for transmitting a first reference voltage signal from the substrate to the first wafer. The second bump is located between the substrate and the first wafer and is used for transmitting a second reference voltage signal from the substrate to the first wafer. The first capacitor is located above the substrate and below the first wafer, the first end of the first capacitor is coupled to the first bump, and the second end of the first capacitor is coupled to the second bump. Therefore, the noise of the reference voltage signal is reduced. 一种电源传输装置及电源传输系统，电源传输装置包括基板、第一晶片、第一凸块、第二凸块及第一电容。第一晶片用以接收第一参考电压信号及第二参考电压信号。第一凸块位于基板及第一晶片之