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Controller Design and Analysis for Fifth-Order Boost Converter
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DOI：10.1109/TIA.2018.2843758.png)
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摘要
En 中文
In this paper, a fifth-order boost point-of-load converter is developed by cascading a modified fourth-order boost converter with a combination of L-C and diode. This topology has the following salient features: Single-switch topology, common ground between source and load, low-voltage stress across intermediate capacitors, and voltage gain same as other reported fifth-order boost converters with no common ground. Steady-state and dynamic analyses demonstrate the proposed converter's boosting feature and dynamic performance, respectively. A contoured robust Bode plot methodology is employed to design the robust voltage-mode controller to ensure load voltage regulation in the presence of uncertainties. The necessary and sufficient conditions under which the designed controller guarantees the load voltage regulation and robust stability are obtained. A step-by-step robust controller design procedure is outlined. The salient features of the proposed converter and its robust performance are studied analytically, using the MATLAB platform, and validated experimentally on a 60-W prototype module.
Keyword:
Contoured robust controller Bode (CRCBode)
fifth-order boost converter (FBC)
high voltage gain (VG)
robust controller
robust performance metric (RPM)
voltage regulation
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期刊
IF:
4.5
论文数:
1.1W
被引数:
3.5W
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