A Buck Converter Design Based on Sliding Mode Control Strategy
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Abstract:
A sliding mode controller for buck converter based on PWM technology is discussed.Firstly, the schematic diagram of buck converter circuit based on a slidingmode control strategy is designed. Then a sliding mode control approach basedon reaching law is constructed. A circuit model based on MULTISIM is proposed.Finally, the simulation result show that the proposed method can effectively improvethe system dynamic characteristics.Keywords:
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Buck converter
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The characteristics and working principle of the whole circuit system on the KINGLONG bus XMQ6110 series are introduced here.
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A new approach utilizing MOS circuit structures extracted from a circuit net-list for designing VLSI leaf cells is described. A circuit structure is explicitly present in a circuit schematic diagram on which a designer relies for drawing a layout. However, it is absent in the net-list input to an automatic layout system. In this paper, how to extract schematic like information from a net-list and how to apply it for automatic leaf cell design are discussed.
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Sliding-mode control has such advantages as robustness, simple algorithm and good dynamic performance, so sliding-mode control was introduced into three-level (TL) converters in this paper. The design of sliding-mode control buck TL converter, including sliding-mode control surface design, equivalent control, stability and existence proof, was given as an example. Experiments of sliding-mode control buck TL converter and traditional PWM buck TL converter were carried out in order to analyze and compare. Analysis results verify that dynamic performance and robustness are improved greatly in the sliding-mode control buck TL converter compare with traditional PWM buck TL converter.
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Buck converter
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Quantum Efficiency
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Sliding-mode control has the advantages of robustness and good dynamics performance,so it is introduced into three-level(TL) converters in this paper.The design of sliding-mode control Buck TL converter,including sliding-mode control surface design,equivalent control,stability and existence proof,is given as an example.Experiments of sliding-mode control Buck TL converter and traditional PWM Buck TL converter were carried out in order to analyze and compare.Analysis results verify that dynamics performance and robustness are improved greatly in the sliding-mode control Buck TL converter compare with PWM Buck TL converter.
Buck converter
Robustness
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Sliding-mode control has the advantages of robustness and good dynamics performance,so this paper take three-level converters for example to treatise the sliding-mode control and the design of sliding-mode control Buck three-level converter,particularly discussing the effect of system performance of sliding-mode control surface design,equivalent control stability and existence proof.In the end,simulation testing of sliding-mode control buck TL converter and tradition stability PWM Buck TL converter were carried out in order to analyze and compare,analysis verify that robustness and dynamics performance are improved greatly in the sliding-mode control Buck TL converter.
Buck converter
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Abstract Circuit simulators play an important role in circuit design. However, their sintaxis is usually not friendly for students having their first exposure to this technology, causing reluctance toward the use of these kind of software aids. This fact was a driving force for the authors to propose a system called RECIA, by means of which the student could have access to a circuit simulator without having any knowledge about the sintaxis of it. In addition, input/output to the system is in a graphic environment. In this way, the student only has to specify as input the schematic diagram of his/her circuit and obtain as the output plots of the desired voltages and currents. The simulator chosen in this work can be anyone belonging to the family of SPICE simulators. RECIA is a shareware package available on request from the authors. One of the most important aspects of RECIA is that it does not need previous extensive training to be readily used by students and yet, a simulation run can be done in the very first minutes of use. This is an advantage over other simulators with schematic capture which require some time to learn the sintaxis.
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A carefully planned schematic diagram will simplify the study and servicing of electronic equipment. Whereas a conventional schematic merely shows the electrical components and how they are connected, a functional schematic will place these parts on the drawing in such a way as to delineate the circuits they build. This circuit concept versus component concept is the main thesis of this paper. It is expanded by considering major equipments as electrical structures built of circuits, and by treating components as having functions to perform in their circuits. These points are illustrated with functional drawings. Ideas and techniques are suggested which can make schematic diagrams more lucid.
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