Abstract: A power converter including a star converter module network and a star resistive network. A feedback network monitors the voltage difference between the nodes of the star converter module network and the star resistive network, and provides a signal for each phase of an AC supply corresponding to the voltage difference. An output sensing means senses the output voltage across output terminals and produces a demand signal based on a comparison of the output voltage with a required value. A controller produces a control signal based upon this comparison for each phase, and the control signal is used to control a corresponding converter module. Applications include power converters for supplying an isolated supply from a multi-phase main supply not having a neutral connection.