Modeling of switch-mode dc-dc cascade converters

Morales-Saldaña, J.A.; Gutiérrez, Enrique Eduardo Carbajal; Leyva-Ramos, J.

doi:10.1109/7.993249

Cited by 134 publications

(45 citation statements)

References 9 publications

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“…As discussed in [1], there is a limit on the minimum on time of an active switch and this may lead to an implementation problem. To obtain wider voltage conversion ratios from DC/DC converters with good performances, another approach is to put DC/DC converters in cascade.…”

Section: Introductionmentioning

confidence: 97%

Robust output regulation of single-switch quadratic buck converter using internal model

Wei

Wang

et al. 2009

2009 IEEE International Conference on Control and Automation

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An internal model control with conditional integrator is proposed for the robust output regulation of single-switch quadratic buck converters. The output regulation problem of a quadratic buck converter is converted to the stabilization of an augmented system consisting of the buck converter and the internal model. The design procedures include the design of an internal model with conditional integrator and a robust state feedback stabilizer with saturation behavior. The closed-loop stability of the converter will be theoretically analyzed. Finally, the effectiveness of the proposed control scheme for large load and supply variations are also tested. The design of the controller does not require the exact circuit parameters and the stability proof demonstrates the robustness against parameter uncertainties.

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Section: Introductionmentioning

confidence: 97%

Robust output regulation of single-switch quadratic buck converter using internal model

Wei

Wang

et al. 2009

2009 IEEE International Conference on Control and Automation

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“…Dc-dc converters may be developed by cascade connection or by adding transformers to obtain higher voltage conversion ratios [1,2]. However, the resulting problems, energy losses, multiple power switches and large switching surges in transformers significantly increase the control complexity and the cost of these converters.…”

Section: Introductionmentioning

confidence: 99%

Analysis of voltage-lift-type boost converters

Zhu

Wang

Luo

2012

2012 7th IEEE Conference on Industrial Electronics and Applications (ICIEA)

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This paper introduces a set of positive output boost dcdc converters applying the series voltage-lift technique. Compared with the traditional boost converter, the proposed circuits can perform positive-to-positive dc-dc voltage increasing conversion with higher voltage conversion ratios. They are different from other existing dc-dc step-up converters and are featured with the single-switch operation in simple structures. Since the proposed converters avoid using transformers and cascade connection, their relative simple structures are beneficial to potential industrial applications in future. A detailed theoretical analysis for both continuous and discontinuous conduction modes is given, which is verified by the simulation results.

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“…The voltage gain of these converters are insufficiently converted to a suitable voltage to grid through inverter, in terms of high step-up voltage gain is required, to cascading two or more converters is a way to reach higher voltage ratio, as a consequence the power losses is increased [14,15]. As known the efficiency and voltage gain of DC-DC boost converter are restrained by either the parasitic effect of power switches or the reverse recovery issue of diodes.…”

Section: Introductionmentioning

confidence: 99%

A quadratic high step-up DC-DC converter with voltage multiplier

Chen

Liang

Yang

et al. 2011

2011 IEEE International Electric Machines &Amp; Drives Conference (IEMDC)

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By cascading two different converters being a quadratic step-up converter and adopting voltage multiplier achieve extra ratio of voltage conversion with appropriated duty ratio and low turn ratio of the coupled inductor. However, the energy stored in the leakage inductor of the coupled inductor can be recycled to the output capacitor. The operating principles and steadystate analyses of continuous conduction mode are discussed. A 200-W/ 400-V prototype sample is implemented with input voltage 20-V. The maximum efficiency of 93.2 % is reached; the full load efficiency remains at 89.5 %.

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Modeling of switch-mode dc-dc cascade converters

Cited by 134 publications

References 9 publications

Robust output regulation of single-switch quadratic buck converter using internal model

Robust output regulation of single-switch quadratic buck converter using internal model

Analysis of voltage-lift-type boost converters

A quadratic high step-up DC-DC converter with voltage multiplier

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