CCM–DCM Power-Multiplexed Control Scheme for Single-Inductor Multiple-Output DC–DC Power Converter With No Cross Regulation
CCM–DCM Power-Multiplexed Control Scheme for Single-Inductor Multiple-Output DC–DC Power Converter With No Cross Regulation
复制标题
无交叉调节单电感多输出 DC-DC 电源转换器的 CCM–DCM 功率复用控制方案
DOI：
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复制
发表时间：
2017
影响因子：
4.4
通讯作者：
Zhigang Dang
中科院分区：
文献类型：
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作者：
W. Huang;J. Qahouq;Zhigang Dang
单电感器多输出（SIMO）开关DC – DC电源转换器体系结构是许多单独的开关电源转换器解决方案在许多功率分配系统应用程序中的一种成本效益的替代方案，在这些功能分配系统中，需要以降低成本来进行多个电压。电压导轨耦合到同一开关节点，Simo电源转换器遭受多个输出之间的交叉调节，这使闭环控制器复杂化SIMO转换器的设计和降解的调节性能在本文中，提出了一个电源（PM）控制方案，目的是将多个输出的操作完全解除。在稳态和动态操作下，在维持每个输出所需的电压调节性能的同时，可以使用低成本的微控制器或模拟电路。实施拟议的控制器。
Single-inductor multiple-output (SIMO) switching dc–dc power converter architecture is a cost-effective alternative to multiple individual switching power converters solution in many power distribution system applications where multiple voltage rails are required at reduced cost. However, with multiple output voltage rails coupled to the same switching node, the SIMO power converters suffer from cross regulation between the multiple outputs, which complicates the closed-loop controller design of the SIMO converter and degrades regulation performance. In this paper, a power-multiplexed (PM) control scheme is proposed aiming to completely decouple the operations of multiple outputs from one another. The proposed PM control scheme results in eliminating the cross regulation among the multiple outputs while maintaining desired voltage regulation performance for each output under both steady-state and dynamic operations. Low-cost microcontroller or analog circuitries can be used to implement the proposed controller. Experimental proof of concept prototype results verify the feasibility and advantages of the proposed controller.