Patent ID: 10990157

Abstract:
An apparatus for measuring power of a PCIe device in various modes under the control of a testing host includes two PCIe bus ports, a microcontroller unit, a current-measuring unit and a switch unit. In operation, the first PCIe bus port is electrically connected to the testing host, and the second PCIe bus port is electrically connected to the PCIe device. The microcontroller unit receives commands from and sends signals to the testing host via the first PCIe bus port. The current-measuring unit is in communication of electricity and signals with the second PCIe bus port and electrically connected to the microcontroller unit. The current-measuring unit includes large and small current-measuring paths. The switch unit includes two switches. Under the control of the microcontroller unit, the current-measuring unit is electrically connected to the first PCIe bus port via the large or small current-measuring path and the first or second switch.