Analysis and design of N paralleled DC/DC modules with current-sharing control

This paper presents a general small-signal model of paralleled DC/DC modules with current sharing control. With this general small-signal model, the control mode inside each single DC/DC converter doesn't need to be considered any more, hence the analysis on small-signal stability and output impedance can be simplified. A design example of two 1V/20A parallel modules is presented and experimental results verify the performance of current sharing.