Very simply, electromagnetic interference (EMI) costs money, reduces profits, and generally wreaks havoc for circuit designers in all industries. This book shows how the analytic tools of circuit theory can be used to simulate the coupling of interference into, and out of, any signal link in the system being reviewed. The technique is simple, systematic and accurate. It enables the design of any equipment to be tailored to meet EMC requirements.
Every electronic system consists of a number of functional modules interconnected by signal links and power supply lines. Electromagnetic interference can be coupled into and out of every conductor. A review of the construction of the wiring assemblies and the functions of the signals they carry will allow critical links to be identified. Circuit modeling can be used to simulate the electromagnetic coupling mechanism of each critical link, allowing its performance to be analysed and compared with the formal requirements. Bench testing during the development of any product will allow any interference problem to be identified and corrected, long before the manufactured unit is subjected to formal testing.
