Buck DC-DC converter: Mathematical modeling and transient state analyzes

Laali, Sara; Mahery, Hamed Mashinchi

doi:10.1109/pedg.2012.6254073

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…Note that although a more detailed modeling approach such as can provide more accurate modeling, high accuracy of response prediction is not needed to design the controller; rather, a simplified analytically tractable model is warranted. Simulation results presented in Section 4 demonstrate that the controller based on the response prediction of this simplified model here can perform the desired transient waveform shaping.…”

Section: Controller Designmentioning

confidence: 99%

Envelope tracking using transient waveform switching shaping supply modulation

Modi

Balsara

Eliezer

2013

Circuit Theory & Apps

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SUMMARYA novel supply modulation scheme for envelope tracking for a power amplifier in a transmitter is proposed, which follows a control principle that is fundamentally different from the existing ones. Instead of regulating the supply modulator's output in accordance with a given reference signal, the system utilizes a look-ahead window and synthesizes pulses for the supply modulator such that its output tracks the envelope of the radio frequency signal amplified by the power amplifier, while minimizing its switching rate. Simulation results for a 5 MHz Long Term Evolution signal with 16 quadrature amplitude modulation indicates that the proposed technique provides very high average efficiency (84%) while maintaining a very low ratio between the switching frequency and the envelope bandwidth.

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Section: Controller Designmentioning

confidence: 99%

Envelope tracking using transient waveform switching shaping supply modulation

Modi

Balsara

Eliezer

2013

Circuit Theory & Apps

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“…It is preferred to design a robust controller. However, as it doesn't consider switching frequency in the analysis, this technique is applied by neglecting the ripple effect on inductor current and output voltage [5,6], which affects its accuracy [7][8][9]. State space representation is used for mathematical modelling of SEPIC converter, which is further used to contrivance the controller.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of state space averaging and PWM with extra element theorem techniques for complex cascaded DC-DC Buck converter

Shete

Joshi

2023

Acta Polytech

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Until now, most commonly used state space averaging and PWM techniques have been applied to different converter topologies and their advantages and disadvantages were stated. However, the superiority of an analytical technique was not justified based on a parametric comparison of these techniques for the same converter topology. Hence, in this paper, first time a comparative evaluation of two commonly used modelling techniques for fourth order converter is presented. The first approach makes use of a state-space averaging of the converter and is based on analytical manipulations using different state representations of the converter. The second approach is based on PWM switch modelling with an extra element theorem and consists of topological manipulations. The two modelling techniques are applied to the same complex cascaded DC-DC Buck converter and a transfer function is obtained. These techniques are compared for different features and the study concludes that state space modelling technique is systematic and less complicated than PWM switch modelling with an extra element theorem for a higher order converter.

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Analytical Techniques for DC-DC Converters and 1Φ Inverters: A Comprehensive Review

Shete

Joshi²

2022

J. Inst. Eng. India Ser. B

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Buck DC-DC converter: Mathematical modeling and transient state analyzes

Cited by 6 publications

References 12 publications

Envelope tracking using transient waveform switching shaping supply modulation

Envelope tracking using transient waveform switching shaping supply modulation

Comparative study of state space averaging and PWM with extra element theorem techniques for complex cascaded DC-DC Buck converter

Analytical Techniques for DC-DC Converters and 1Φ Inverters: A Comprehensive Review

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