A New Negative Output Buck–Boost Converter with Wide Conversion Ratio

Ding, Shumin; Wang, Faqiang

doi:10.1109/tie.2017.2711541

Cited by 83 publications

(133 citation statements)

References 15 publications

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“…To solve the aforementioned problems, many modified single‐ and double‐switch nonisolated buck‐boost DC/DC topologies, with improved performance, are introduced in recent years . In Ajami et al, a new type of single‐switch buck‐boost converter based on CUK converter with low voltage stress, continuous input current, and low output voltage ripple is presented.…”

Section: Introductionmentioning

confidence: 99%

“…The negative polarity step‐up/step‐down voltage gain ratio, along with high voltage stress across the single‐power switch and discontinuous input current, are the main disadvantages of this converter. A new negative output buck‐boost converter with wide conversion ratio is suggested in Ding and Wang . However, high‐input current ripple and negative conversion ratio are demerits of this converter.…”

Section: Introductionmentioning

confidence: 99%

“…To solve the aforementioned problems, many modified single-and double-switch nonisolated buck-boost DC/DC topologies, with improved performance, are introduced in recent years. [15][16][17][18][19][20][21][22][23][24][25][26] In Ajami et al, 15 a new type of single-switch buck-boost converter based on CUK converter with low voltage stress, continuous input current, and low output voltage ripple is presented. However, the limitation on the voltage conversion ratio and the lack of common ground between the input and output voltages are disadvantages of this converter.…”

Section: Introductionmentioning

confidence: 99%

“…A new negative output buck-boost converter with wide conversion ratio is suggested in Ding and Wang. 25 However, high-input current ripple and negative conversion ratio are demerits of this converter. A single-switch quadratic buck-boost converter with continuous input port current is proposed in Zhang et al, 26 which its output voltage polarity is negative.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

Hasanpour

Mostaan

Baghramian

et al. 2019

Circuit Theory & Apps

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Summary This paper presents a novel transformerless semi‐quadratic buck‐boost converter (SQBuBoC). In the proposed SQBuBoC, two power switches with simultaneous operation are used and a higher step‐up/step‐down voltage conversion ratio is achieved compared with the traditional buck‐boost, Cuk, single‐ended primary‐inductor converter, and Zeta converters. The positive polarity of the output voltage, along with low ripple continuous input current and common ground between the source and the output voltages, are some features that make the suggested topology more suitable for many applications with wide range of output voltage such as photovoltaic systems. Moreover, the total voltage stress across the power switches in this converter is lower than the cascade boost, and the traditional buck‐boost converters led to power MOSFETs selection with lower drain‐source ON resistance (Rds) and efficiency improvement. All the steady‐state analysis and comparisons in continuous conduction mode (CCM) are discussed in details. In addition, to study the low frequency behavior of the SQBuBoC by means of the state‐space averaging technique, the small and large signal models of this converter in CCM are presented. Finally, the SQBuBoC analysis is justified using experimental results of a 50 W step‐up 25 V to 120 V and a 28 W step‐down 25 V to 14 V laboratory prototypes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

Hasanpour

Mostaan

Baghramian

et al. 2019

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

“…To enhance the voltage gain of conventional BBC, some modified converter topologies have been reported in previous studies. [14][15][16] Transformerless buck-boost converter (TLBBC) with positive output voltage and improved efficiency has been reported in Miao et al 14 In TLBBC, an extra switching circuit is inserted into the conventional two switches-based BBC, and the voltage gain of this converter is the squared times the voltage gain of the conventional BBC. But, due to insertion of this extra switching circuit, the dynamic performance of TLBBC is reduced and ripple content in output voltage is also increased.…”

mentioning

confidence: 99%

Closed‐loop control and performance analysis of a high‐gain buck‐boost converter with optimized Type III controller

Banerjee

Rana

Khuntia

2019

Int Trans Electr Energ Syst

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Summary This paper presents the design and development of an improved high‐gain buck‐boost converter (HGBBC) with optimized Type III controller suitable for power supplies in various electrical/electronics devices. The proposed HGBBC produces higher efficiency, exhibits better performance, is less bulky, and is compact in size. The voltage gain of the proposed HGBBC is the squared times the voltage gain of the conventional buck‐boost converter (BBC). The polarity of source and load (output) voltages are the same (ie, noninverting polarity). This added advantage of the proposed converter allows it to operate the positive load voltage variation in a wider range even with small variation of duty cycle ratio of the power switches. Therefore, its application may be advantageous for electronics/electrical equipment. The proposed converter's validity is determined by its steady‐state analysis, small‐signal analysis, and closed loop control operation. A closed‐loop controlled of HGBBC utilizing optimized Type III controller has been fabricated and tested in the laboratory. The comparative studies in terms of efficiency, dynamic response, and percentage ripple content of the proposed HGBBC and existing converters have been performed. From the results, it is seen that the proposed HGBBC is performed better than other existing quadratic types of BBCs.

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Non‐isolated high step‐up / step‐down DC–DC quadratic Ćuk converter

Oliveira

Ribeiro

Morais

et al. 2021

Int Trans Electr Energ Syst

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This work presents a non-isolated DC-DC quadratic Cuk topology, which results from the cascade connection of two conventional Cuk converters. Using the graft scheme and rearranging the power stage, it is possible to obtain a single-switch version of the converter with fewer components when compared with its two-switch counterpart. The converter can provide both voltage stepdown and step-up by varying the duty cycle imposed to the active switch, this being an interesting solution for applications that demand a wide conversion range. Both the current drawn from the source and supplied to the output stage are non-pulsating when the converter operates in continuous conduction mode (CCM), contributing to the reduction of electromagnetic interference (EMI) levels. Both the input voltage and output voltage present the same polarity as well. A comprehensive mathematical analysis is derived for the converter operating in step-up and step-down modes, as it is possible to obtain a consistent design procedure. A laboratory prototype is also implemented and thoroughly assessed experimentally to validate the theoretical assumptions.

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A New Negative Output Buck–Boost Converter with Wide Conversion Ratio

Cited by 83 publications

References 15 publications

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

Closed‐loop control and performance analysis of a high‐gain buck‐boost converter with optimized Type III controller

Non‐isolated high step‐up / step‐down DC–DC quadratic Ćuk converter

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