负载条件下SMPS快速瞬态响应的正电压注入开关电感(P-VISI)方法

2009 Innovative Technologies in Intelligent Systems and Industrial Applications Pub Date : 2009-07-25 DOI:10.1109/CITISIA.2009.5224183

J. Jegandren, R. Gobbi, H. Athab

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引用次数: 0

摘要

在开关电源中，对负载阶跃变化的快速瞬态响应是非常必要的。采用反馈控制方法可以改善暂态响应。本文讨论了基于半桥变换器的SMPS功率级的硬件实现，采用正压注入开关电感(P-VISI)反馈控制方法对升压负载暂态进行控制。采用电压模式控制(VMC)和P-VISI对半桥变换器进行了测试。与VMC相比，P-VISI有助于SMPS获得更快的瞬态响应。本文给出了P-VISI方法的详细说明和实验结果。实验结果表明，在快速瞬态响应方面有所改进。

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Positive voltage injection switching inductor (P-VISI) method for fast transient response in SMPS under loading condition

Fast transient response to step load change is very essential in a switch mode power supply. The transient response can be improved by means of feedback control method. In this paper a hardware implementation of SMPS power stage using half-bridge converter, employing positive voltage injection switching inductor (P-VISI) feedback control method for step-up load transient condition will be discussed. The half-bridge converter has been tested using voltage mode control (VMC) and P-VISI. It is found that the P-VISI helps the SMPS for a faster transient response compared to the VMC. Detailed explanations of the P-VISI method and experimental results are presented in this paper. The experimental results show improvement in terms of fast transient response.

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2009 Innovative Technologies in Intelligent Systems and Industrial Applications

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