Current branching test jig (CBTJ) for conducted emission tests

Electromagnetic interference and compatibility qualification of electronic/electrical/control systems requires compliance testing of the conducted emissions (CE) injected on the power line. This paper presents a measurement technique of carrying out the conducted emission (CE) test when high order of AC or DC currents are required to power the equipment under test (EUT). A current branching test jig (CBTJ) has been developed and used as a test tool to enhance the current carrying capacity of the CE test set-up without the need of high current test accessories.