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Topologies and control of a class of single inductor multiple-output converters operating in continuous conduction mode

机译:一类以连续导通模式工作的单电感器多输出转换器的拓扑和控制

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摘要

In this paper, continuous conduction mode (CCM) operation of a class of single inductor multiple output dc-dc converters is proposed. The power stage combines boost and buck-boost structures loading non-inverted and inverted outputs. The control strategy is based on current mode control under an interleaving scheme, in which each output is controlled by a specific channel. These channels use different dynamic references, which are obtained from a set of proportional-integral (PI) controllers associated to the voltage outputs. The dynamical behaviour of this system is described by means of a large signal averaged model and direct simulations of the switched circuit-based model. Small signal stability analysis of the slow scale dynamics is also carried out by using the averaged model. Finally, some experimental results are provided to validate the theoretical predictions and the numerical simulations.
机译:本文提出了一类单电感多输出DC-DC转换器的连续导通模式(CCM)操作。功率级结合了升压和降压-升压结构,可加载​​同相和反相输出。该控制策略基于交织方案下的电流模式控制,其中每个输出均由特定通道控制。这些通道使用不同的动态参考,这些参考是从与电压输出关联的一组比例积分(PI)控制器获得的。通过大信号平均模型和基于开关电路模型的直接仿真来描述该系统的动态行为。慢速动力学的小信号稳定性分析也通过使用平均模型进行。最后,提供了一些实验结果,以验证理论预测和数值模拟。

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