Patent ID: 8258762

Claim:
A computer power measurement device, which comprises: a motherboard, which includes a first input unit and an output unit, wherein the first input unit is electrically connected to the output unit, the first input unit is connected a first power supply, and the output unit is connected with a plurality of energy consumption components; an impedance, with one end connected to the first input unit and the other end connected to the output unit; a plurality of inductors, each of which are connected to a respective one of the energy consumption components, wherein each of the inductors is provided with a DC equivalent resistance; an input measurement module, which is connected to the impedance in parallel, and is configured to measure the crossed voltage at both ends of the impedance and calculate an input power according to a value of the resistance of the impedance and the measured cross voltage of the impedance; and, an output measurement module, which is connected to each of the inductors in parallel, and is configured to measure the crossed voltage at both ends of the inductors and calculate an output power supplied to each energy consumption component according to a value of the DC equivalent resistance of each inductor and the measured cross voltage of each inductor.