EMC concepts applied to the switching mode power converters supplying the superconductive magnets for the CERN LHC accelerator

The LHC (Large Hadron Collider) particle accelerator makes extensive use of switching mode power supplies, in charge of delivering a high precision regulated output current to superconductive magnets controlling and driving the high energy beam of particles. Obtaining such level of precision was achieved through a given approach regarding the architecture of the converter, which was split into three fundamental elements. These three elements had to demonstrate a full compatibility in between them, and regarding the global environment. This paper presents in detail the chosen approach, regarding the EMC (ElectroMagnetic Compatibility) aspect in particular, applied to the power converters.