Switching networks for realisation of variable DC transformers coupled to rectangular arrays

A rectangular anay consisting of identical elements can be transformed to another rectangular array by changing its interconnections. When the total number of the elements is conserved, the structure-changing process is equivalent to the coupling of the original array by means of a DC transformer (DCT). The purpose of the paper is to describe switching networks, using a minimum number of switching elements, which can be used for the array transformations.