Wye-Delta and Delta-Wye Transformations of Proximally-Coupled Inductor Triads

This paper presents a method for Wye-Delta and Delta-Wye transformations of proximally-coupled inductor triads. This is achieved by a two stage process: a topology-preserving ‘deproximation’ that produces an intermediate coupling-free network which retains the same structure, thus making it possible to apply a straightforward transformation. The developed method is illustrated via numerical examples.