A New Buck–Boost Converter With Low-Voltage Stress and Reduced Conducting Components

Son, Hyo-Soo; Kim, Jae-Kuk; Lee, Jae-Bum; Moon, Sang-Su; Park, Jihoon; Lee, Seok-Hyun

doi:10.1109/tie.2017.2686300

Cited by 55 publications

(18 citation statements)

References 14 publications

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“…Because of suffering higher current stress in turn-on mode ((13)-(16)), conduction and turn off/on losses of MOSFET S 1 are more than the MOSFET S 2 . On the basis of (19) to (22), conduction and turn off/on losses of the MOSFETs are second and first order functions of current. Because of the fact that the conduction loss of MOSFETs is much lower than their turn off/on power losses in IRFB4227 series, the portion of MOSFETs losses in comparison with the total converter loss is increased by decreasing the voltage gain ratio (V in = 40).…”

Section: Resultsmentioning

confidence: 99%

“…Although, the converters in Banaei and Bonab and Banaei and Sani 18,20 have a higher voltage gain at duty cycle range between 0 < D < 0.65, more storage components ( 18,20 ) and negative polarity of the output voltage (Banaei and Bonab 18 ) restrict applications of these converters. Also in Son et al, 19 despite lower number of elements, the converter cannot offer better performance than the SQBuBoC because of its discontinuous input current, lack of a common ground between the input and output voltages, existence of two switches with asynchronous operation, and lower voltage gain. Figure 3B describes the voltage stress across the main power switch versus duty cycle of the proposed SQBuBoC and other converters introduced in the Table 1 in the same output voltage.…”

Section: Power Loss Analysismentioning

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 . 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%

“…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%

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: Resultsmentioning

confidence: 99%

Section: Power Loss Analysismentioning

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

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show abstract

“…Как сказано ранее, силовая часть КПППН представляет собой последовательное соединение понижающего и повышающего преобразователей постоянного напряжения. Расчет номиналов их компонентов ведется на основании известных методик [2,[12][13][14][15].…”

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Study of the combined buck-boost DC-DC converter in the composition of high-voltage energy-converting equipment

Apasov¹,

Kobzev²,

Mikhalcenko³

2019

Proceedings of TUSUR

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Исследование работы комбинированного понижающе-повышающего преобразователя для высоковольтной энергопреобразующей аппаратуры* Разработана численно-аналитическая математическая модель комбинированного понижающе-повышающего преобразователя постоянного напряжения для анализа его работы в составе высоковольтной энергопреобразующей аппаратуры. Приведена схема рассматриваемого преобразователя, установлены номиналы компонентов силовой части устройства, обеспечивающие его функционирование на нагрузку не более 1 кВт. Показаны эпюры выходного напряжения в различных режимах работы, а также двухпараметрические бифуркационные диаграммы, позволяющие определить области нормальной работы устройства c минимальными пульсациями выходного напряжения, где исключено возникновение субгармонических колебаний. Ключевые слова: комбинированный понижающе-повышающий преобразователь напряжения, математическая модель, двухпараметрическая бифуркационная диаграмма, область нормальной работы.

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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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A New Buck–Boost Converter With Low-Voltage Stress and Reduced Conducting Components

Cited by 55 publications

References 14 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

Study of the combined buck-boost DC-DC converter in the composition of high-voltage energy-converting equipment

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

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