Patent ID: 8143882

Claim:
A current measuring apparatus for measuring a current consumption value of an electronic apparatus under an activated state, the current measuring apparatus comprising: a direct current power supply module, electrically connected to the electronic apparatus, adapted to provide a DC electric power to the electronic apparatus; an impedance setting module, electrically connected to the electronic apparatus, the impedance setting module comprising a plurality of resistors and an resistance modulator selecting one of the resistors to output the at least one resistance value, wherein the impedance setting module is adapted to provide at least one adjustable impedance value to the electronic apparatus so that the electronic apparatus activates in response to the electric power and the at least one adjustable impedance value; a current measuring unit, electrically connected to the direct current power supply module and the electronic apparatus, respectively, the current measuring unit being adapted to show the current consumption value of the electronic apparatus under the activated state; and a clamping unit, assembled with and electrically connected to the electronic apparatus, and the direct current power supply module, the impedance setting module and the current measuring unit being electrically connected to the electronic apparatus through the clamping unit, respectively.