SYSTEM FOR MEASURING VOLTAGES AT SAME TIMING USING COMMON CONTROL COMMAND BUS OF DIGITAL MULTIMETER FOR LOAD TEST OF POWER SUPPLY BOARD

摘要

A system for measuring voltages at the same timing using a common control command bus comprises a power supply board for generating a plurality of driving voltages having different voltage levels and supplying a driving voltage to each of a plurality of semiconductor chips in accordance with a preset voltage applying sequence; a plurality of digital multimeters electrically connected to the plurality of semiconductor chips for measuring respective driving voltages; a control computer for transmitting a data acquisition command to the plurality of digital multimeters and receiving respective driving voltages transmitted from the plurality of digital multimeters; and a network hub for performing a network address conversion function of assigning respective private IP addresses to the plurality of digital multimeters and sharing a single common IP address, when transmitting the data acquisition command transmitted from the control computer to the plurality of digital multimeters. The present invention can measure respective driving voltages supplied to a plurality of semiconductor chips at the same timing using a network address conversion function sharing the single common IP address.;COPYRIGHT KIPO 2018