Design and Product Development of a Dual Channel Line Impedance Stabilization Network for Electromagnetic Interference Compatibility

the production of intelligent technology apparatus is drastically increasing in consumer-side applications and at the same time, the high-frequency noises are being injected into the sources of various grids. So to maintain the quality of apparatus life there have been some differential and conducted emission tests that are needed to be carried out both in industrial and domestic applications where the apparatus are connected to the power supply. In this aspect, some world-class organizations like Comite International Special des Perturbations Radioelectriques (CISPR) and International Electrotechnical Commission (IEC) are recommended some special apparatus like Line Impedance Stabilization Networks (LISN) for testing the impact of a conducted emission by using some standard values. In this prescribed paperwork, we designed and developed a low cost, high precision, and high gain LISN, where various apparatus or components are used to give better synchronization between the output and input of any respective apparatus. Basically, the LISN decouples the noises from the power supply and the path where high-frequency noises are produced by Equipment Under Test (EUT). The CISPR referred to as LISN is modified with high precision values and stabilizes the all measurements with good impedance. The emission tests are conducted on a 0.75 KW Induction Motor connected as equipment under test and validating both experimental and simulation results. Finally, well-designed LISN equipment effectiveness is going to validate the component design.