Voltage-Lift Technique Based Nonisolated Boost DC–DC Converter: Analysis and Design

Shahir, Farzad Mohammadzadeh; Babaei, Ebrahim; Farsadi, Murtaza

doi:10.1109/tpel.2017.2740843

Cited by 136 publications

(65 citation statements)

References 24 publications

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“…The current stress of the diodes, such as i D2 and i D3, is illustrated in Figure 14g. By using Equations (30) and (31), the average current stress of the diodes such as i D2 , and i D3 are equal to 1 A, and 1 A, respectively, and the same can be noticed from Figure 14g. The maximum voltage across the capacitors such as V C , V Cox , and V Coy is equal to 100 V, 150 V, and 50 V, respectively.…”

Section: Hardware Resultsmentioning

confidence: 53%

“…Similarly, the voltage stress of the diodes such as V D1 , V D2 , and V D3 is calculated using Equations (26) and (27) and is equal to 150 V, 100 V, and 100 V, respectively. In addition, the current stress of the diodes such as I D1 , I D2 , and I D3 is calculated using Equations (30) and (31), and is equal to 1 A, 1 A, and 1 A, respectively. By considering all the facts, a Schottky diode (MUR820) with rating 200 V, 8 A, has been selected for the converter operation.…”

Section: Design Guidelinesmentioning

confidence: 99%

“…However, the converter efficiency is low under full-load conditions due to its passive clamp structure. The converter with voltage lift concept is presented in [30], but the Energies 2020, 13, 3960 3 of 27 conversion efficiency is reduced due to the large part count. The authors of [31] presented a converter topology with the switched-inductor and switched-capacitor concept.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design and Development of Non-Isolated Modified SEPIC DC-DC Converter Topology for High-Step-Up Applications: Investigation and Hardware Implementation

Premkumar¹,

Subramaniam

Alhelou

et al. 2020

Energies

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A new non-isolated modified SEPIC front-end dc-dc converter for the low power system is proposed in this paper, and this converter is the next level of the traditional SEPIC converter with additional devices, such as two diodes and splitting of the output capacitor into two equal parts. The circuit topology proposed in this paper is formulated by combining the boost structure with the traditional SEPIC converter. Therefore, the proposed converter has the benefit of the SEPIC converter, such as continuous input current. The proposed circuit structure also improves the features, such as high voltage gain and high conversion efficiency. The converter comprises one MOSFET switch, one coupled inductor, three diodes, and two capacitors, including the output capacitor. The converter effectively recovers the leakage energy of the coupled inductor through the passive clamp circuit. The operation of the proposed converter is explained in continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The required voltage gain of the converter can be acquired by adjusting the coupled inductor turn’s ratio along with the additional devices at less duty cycle of the switch. The simulation of the proposed converter under CCM is carried out, and an experimental prototype of 100 W, 25 V/200 V is made, and the experimental outcomes are presented to validate the theoretical discussions of the proposed converter. The operating performance of the proposed converter is compared with the converters discussed in the literature. The proposed converter can be extended by connecting voltage multiplier (VM) cell circuits to get the ultra-high voltage gain.

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Section: Hardware Resultsmentioning

confidence: 53%

Section: Design Guidelinesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and Development of Non-Isolated Modified SEPIC DC-DC Converter Topology for High-Step-Up Applications: Investigation and Hardware Implementation

Premkumar¹,

Subramaniam

Alhelou

et al. 2020

Energies

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“…Nowadays, DC–DC converters are of the most popular power electronics–based circuits that have attracted many researchers and industries interests in various applications [1–3]. So far, diverse types of these converters have been introduced as buck, boost, and buck‐boost converters [4–6].…”

Section: Introductionmentioning

confidence: 99%

New family of non‐isolated step‐up/down and step‐up switched‐capacitor‐based DC–DC converters

Abbasi¹,

Babaei

Tousi³

2019

IET Power Electronics

Self Cite

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Here, a new family of non-isolated step-up/down and step-up switched-capacitor (SC)-based DC-DC converters are proposed possessing many advantages as lower voltage stress on capacitors and higher voltage gain compared to previously introduced DC-DC converters. The proposed converter structures have multiple capacitors which are based on principles of DC-DC SC converters. Therefore, the amount of power transfer from the input to the output is higher in the proposed converters. Generally, the proposed converters are more suitable for industrial applications, especially for generating highvoltage gains in lower duty-cycles. For proving the analysis, comprehensive comparisons and precise experiments have been performed which show remarkable performance of the proposed converter topologies.

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“…The main drawback of these topologies is the high voltage spikes across the main switches because of the leakage inductance of the magnetic component. Multilevel architectures gained a great deal of interest, especially in the past decade, as they distribute the voltage stress across the semiconductor devices, which helps use the semiconductor devices with low-rated voltage; hence, they can improve the system efficiency [22]. However, the complex control algorithm impedes employing them in industrial applications.…”

Section: Introductionmentioning

confidence: 99%

A Soft-Switched DC/DC Converter Using Integrated Dual Half-Bridge with High Voltage Gain and Low Voltage Stress for DC Microgrid Applications

2018

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In this paper, a soft-switched boost converter including an integrated dual half-bridge circuit with high voltage gain and continuous input current is introduced that can be suitable for the applications requiring a wide voltage gain range, such as for the front-end of the inverter in a DC microgrid to integrate renewable energy sources (RES). In the proposed converter, two half-bridge converters are connected in series at the output stage to enhance the voltage gain. Additionally, the balanced voltage multiplier stage is employed at the output to increase the voltage conversion ratio, as well as distribute the voltage stress across semiconductors; hence, switches with smaller on-resistance RDS(on) can be adopted resulting in an improvement in the efficiency. The converter takes advantage of the clamp circuit not only to confine the voltage stress of switches, but also to achieve the soft-switching, which leads to a reduction in the switching loss as well as the cost. The mentioned features make the proposed converter a proper choice for interfacing RES to the DC-link bus of the inverter. The operation modes, steady-state analysis, and design consideration of the proposed topology have been demonstrated in the paper. A 1-kW laboratory prototype was built using gallium nitride (GaN) transistors and silicon carbide (SiC) diodes to confirm the effectiveness of the proposed topology.

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Voltage-Lift Technique Based Nonisolated Boost DC–DC Converter: Analysis and Design

Cited by 136 publications

References 24 publications

Design and Development of Non-Isolated Modified SEPIC DC-DC Converter Topology for High-Step-Up Applications: Investigation and Hardware Implementation

Design and Development of Non-Isolated Modified SEPIC DC-DC Converter Topology for High-Step-Up Applications: Investigation and Hardware Implementation

New family of non‐isolated step‐up/down and step‐up switched‐capacitor‐based DC–DC converters

A Soft-Switched DC/DC Converter Using Integrated Dual Half-Bridge with High Voltage Gain and Low Voltage Stress for DC Microgrid Applications

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