The S7200 series integrates the functions of bi-directional DC power supply and DC electronic load featuring free/active source-load mode switching to meet users' diversified testing requirements. in the bi-directional DC power supply mode, it has both source and sink capabilities, the former for providing power and the latter for returning the energy absorbed from the device under test (DUT) back to the grid. In the DC electronic load mode, there are multiple loading modes available such as the basic and the composite modes, ensuring no power output.