An integrated coupled inductor–capacitor DC–DC high step‐up converter

Afzal, Raheel; Tang, Yu; Tong, Haisheng

doi:10.1002/cta.3544

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…By applying the charge-balance law to C 2 using (3), (13), and ( 27), the following equation can be written:…”

Section: Ccm Operationmentioning

confidence: 99%

“…In Afzal et al, 12,13 a coupled‐inductor included boost unit is derived and utilized instead of the inductor of the basic boost converter to attain a high VG. Although the VG is increased, the voltage tension of the switch and output diode is still high (V S = V Do = V O ).…”

Section: Introductionmentioning

confidence: 99%

“…To achieve a higher voltage conversion ratio while maintaining reasonable duty cycles, some voltage boosting techniques, including voltage lift, voltage multiplier (VM), switched capacitor (SC), switched inductor (SL), interleaving, coupled-inductor (CL), and cascading, are utilized in the conventional step-up structures. 1,2,10,11 In Afzal et al, 12,13 a coupled-inductor included boost unit is derived and utilized instead of the inductor of the basic boost converter to attain a high VG. Although the VG is increased, the voltage tension of the switch and output diode is still high (V S = V Do = V O ).…”

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confidence: 99%

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A new high voltage gain DC‐DC converter based on active switched‐inductor technique

Imanlou,

Seifi Najmi,

Babaei

2023

Circuit Theory & Apps

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SummaryThis article proposes a brand‐new high voltage gain step‐up DC‐DC converter through the amalgamation of active switched‐inductors (A‐SL) and a coupled‐inductor (CL) unit. This topology stands out due to its capacity to achieve noteworthy high voltage amplification employing a lesser amount of components when put in contrast to other comparable topologies. The voltage stress across the switches is low, which enables the utilization of low‐voltage rating switches to elevate efficiency. Moreover, the division of the input current between the switches of the converter enables the power dissipation to be diminished. The CL is utilized in a way that if the turn ratio of its windings is lessened, the voltage boost will be augmented. Furthermore, the leakage energy is recycled through the output diode; therefore, problems such as voltage spikes across the switches do not occur. Moreover, the output diode turns off naturally without reverse recovery problems. The switching pattern of the converter is simple, and both switches are driven simultaneously, and the converter can be controlled using a simple controller in a closed‐loop control method. In addition, the duty cycle range has no limitations. The operation principle and the steady‐state analysis of the proffered converter are discussed in detail for CCM and DCM. The design considerations and efficiency analysis are provided, followed by small‐signal modeling and controller design. Moreover, to evaluate the performance of the proffered converter among other topologies, a comparison study is conducted in terms of voltage gain, total device count, and voltage tension on the power switches and diodes. Finally, a 200–300 W, 28/400 V lab‐based prototype is implemented and tested to validate the analysis.

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“…By applying the charge-balance law to C 2 using (3), (13), and ( 27), the following equation can be written:…”

Section: Ccm Operationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

A new high voltage gain DC‐DC converter based on active switched‐inductor technique

Imanlou,

Seifi Najmi,

Babaei

2023

Circuit Theory & Apps

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Analysis and Design of Stacked Coupled Inductor Quadratic Boost Converter With a Lossless Snubber Cell

Koç,

Birbir,

Özel

2024

Circuit Theory & Apps

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This paper introduces the stacked coupled inductor quadratic boost converter with an inductorless, passive lossless snubber cell suited for high step‐up applications with various microgrids. Some design constraints can be selected from the voltage gain techniques of the high step‐up converters to obtain the solution of improvement performance of converter. The proposed converter utilizes quadratic boost converter and coupled inductor to attain high voltage gain beyond the voltage multiplier/lift cells. In this proposed converter, the use of a stacked coupled inductor type introduces the leakage inductor to snubber cell as an inductor without using an extra inductor in proposed snubber cell. Thus, a regenerative snubber cell is used to achieve a high system efficiency. Compared with earlier counterparts, the solution of attaining a high voltage gain in the proposed converter and passive lossless snubber cell leads to an increase in the converter's performance, reliability, and robustness. The theoretical expectations are supported by simulations and verified by experimental results obtained by implementing a 300‐V, 120‐W prototype.

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An integrated coupled inductor–capacitor DC–DC high step‐up converter

Cited by 2 publications

References 29 publications

A new high voltage gain DC‐DC converter based on active switched‐inductor technique

A new high voltage gain DC‐DC converter based on active switched‐inductor technique

Analysis and Design of Stacked Coupled Inductor Quadratic Boost Converter With a Lossless Snubber Cell

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