Family of Non-Isolated High Step-Up DC–DC Converters Based on the Multi-State Switching Cell

Feretti, Paulo Henrique; Tofoli, Fernando Lessa; Ribeiro, Enio Roberto

doi:10.1109/jestpe.2022.3160280

Cited by 5 publications

(3 citation statements)

References 29 publications

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“…The converter in [39] (Figure 4) appears to achieve a higher voltage with a certain number of voltage multiplier stages compared to the proposed converter, and its efficiency is high. However, it requires the use of many components, and a low frequency is implemented since no soft switching is employed, resulting in high volume and cost.…”

Section: Detailed Comparison and Discussionmentioning

confidence: 96%

“…From the (27), we see that when there is no inductor L ZVS , the maximum voltage of capacitor C P is as follows. Then, we can calculate the maximum voltage of capacitor C P when duty cycle D is minimum, as shown in (39).…”

Section: The Zvs Inductor Lzvs Duty Cycle D and Dead Time T D Of Swit...mentioning

confidence: 99%

“…Non-magnetic coupling topologies, including the converters utilizing the switched capacitors (SCs) [25][26][27][28][29][30][31][32][33][34] and the voltage multiplier (VMs) [35][36][37][38][39], are also popular methods to achieve a high step-up ratio. Yet, converters utilizing SCs typically underperform regarding switch and capacitor voltage stresses due to the involvement of various voltages and the fact that most switches are not ground-referenced, complicating implementation.…”

Section: Introductionmentioning

confidence: 99%

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A Stacked Symmetrical Non-Isolated High Step-Up Voltage Gain Converter with High Efficiency and Low Voltage Stress on Components

Dinh,

Le,

Park

2024

Energies

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This paper introduces a cascaded symmetrical non-isolated high step-up voltage gain converter with high efficiency and low voltage stress on components combining a non-isolated buck-boost converter and voltage doubler structure. In the proposed converter, the input source is connected in series to the output load; hence, a part of the source energy is directly delivered from source to load, not through the switching branch, improving efficiency. Furthermore, the appropriately stacked voltage doubler stage not only amplifies the high step-up voltage gain ratio but also considerably diminishes the voltage stress on all semiconductor devices and capacitors. As a result, the costless low internal resistance and low voltage components can be employed for higher efficiency, higher power density, and lower cost. To demonstrate the practicality of the proposed topology, the operating principle is outlined, and the steady-state characteristics are thoroughly analyzed. Furthermore, a 360 W prototype converter has been fabricated to confirm the efficiency of the proposed converter.

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Section: Detailed Comparison and Discussionmentioning

confidence: 96%

Section: The Zvs Inductor Lzvs Duty Cycle D and Dead Time T D Of Swit...mentioning

confidence: 99%