Development of two power supply modules paralleled

In this paper, a simple method to design the current-sharing loop, together with the feedback loops, is presented for two power supplier paralleled. First of all, the proposed current-sharing loop is described in details. Next, in order to design the parameters of the voltage controller based on the given crossover frequency and phase margin, the corresponding small-signal model is introduced. According to the proposed current-sharing loop, such a small-signal model can be easily figured out. Finally, some experimental results, together with some simulated results, are provided to verify the effectiveness of the proposed method.