Performance and Stability Analysis of a Multiphase Buck Converter under Mixed-Signal Current Mode Control for Mobile and Automotive Applications

Talukder, Ritam; Golla, Teja; A, Ravikumar Setty; Sridharan, Sucheendran; Kapat, Santanu

doi:10.1109/oncon56984.2022.10126673

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…Examples of such applications are industrial applications [ 1 , 2 ], like motor drives or factory automation [ 3 , 4 ], telecommunications [ 5 ], solar power systems [ 6 ], automotive [ 7 ], and voltage regulators [ 8 , 9 , 10 , 11 , 12 ]. This ability to reduce the voltage level is essential in many electronic devices, and in the literature, different topologies, starting with the classical step-down buck converter [ 13 ], other types of non-isolated [ 14 , 15 ] converters or isolated step-down converters [ 16 , 17 , 18 ] can be found. In contrast to various other topologies resembling the buck configuration, the introduced converter from [ 19 ] showcases a notably smooth current profile at the input.…”

Section: Introductionmentioning

confidence: 99%

Fourth-Order Quadratic Buck Converter Controller Design

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Lascu

2024

Sensors

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This paper aims to outline the process of dimensioning a controller tailored for a fourth-order step-down converter. In order to conduct a thorough small-signal analysis, it is imperative to find the state–space model in matrices form. Given its fourth-order nature, the control-to-output transfer function also aligns with this order, although its degree is ultimately reduced to a second-order using the tfest function. It is remarkable that the design of the type III error amplifier assumes a central position in the overall controller design process. The theoretical analysis was then subjected to rigorous validation via simulation, with particular attention paid to the step response in both input voltage and output resistance. This study developed from the desire to validate the efficacy of reducing the control-to-output transfer function degree using the tfest function, aiming to highlight a fourth-order converter to which controller design theory can be applied, related to that for a second-order converter.

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Section: Introductionmentioning

confidence: 99%

Fourth-Order Quadratic Buck Converter Controller Design

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Pop-Calimanu,

Lascu

2024

Sensors

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“…In applications that require a step-down of the input voltage, buck-type topologies are the first choice due to their compact size and ability to handle varying loads [ 1 , 2 ]. They are commonly used in various electronic devices and applications where efficient power converters are necessary, like power supplies [ 3 , 4 ], battery charging [ 5 , 6 , 7 , 8 , 9 , 10 , 11 ], IoT applications [ 12 , 13 ], LED drivers [ 14 , 15 , 16 ] and renewable energy [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Buck Converter with Cubic Static Conversion Ratio

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2024

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The paper introduces a step-down converter that exhibits a static conversion ratio of cubic nature, providing an output voltage which is much closer to the input voltage, and at the same duty cycle, compared to a wide class of one-transistor buck-type topologies. Although the proposed topology contains many components, its control is still simple, as it employs only one transistor. A dc analysis is performed, the semiconductor stresses are derived in terms of input and output voltages and output power, revealing that the semiconductor voltage stresses remain acceptable and anyway lower than in other cubic buck topology. All detailed design equations are provided. The state-space approach is used to analyze the converter in the presence of conduction losses and a procedure for calculating the individual power dissipation is provided. The feasibility of the proposed cubic buck topology is first validated by computer simulation and finally confirmed by an experimental 12 V–10 W prototype.

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Performance and Stability Analysis of a Multiphase Buck Converter under Mixed-Signal Current Mode Control for Mobile and Automotive Applications

Cited by 2 publications

References 19 publications

Fourth-Order Quadratic Buck Converter Controller Design

Fourth-Order Quadratic Buck Converter Controller Design

Buck Converter with Cubic Static Conversion Ratio

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