Load compensating power supply having minimally invasive device current analyzer

摘要

An apparatus for and a method of making very accurate non-invasive current measurements of current flowing from a power source to a device under test (DUT). A power supply, which operates in a pass through mode and which incorporates a plurality of sense leads, compensates for voltage drops due to system wiring and measurement shunts within the bandwidth limits of the power supply. The resulting circuit voltage and impedance seen by the load, after the addition of the measurement system and system wiring, is nearly identical to the power source's output voltage and impedance.