A Self-Driven Synchronous Rectification ZCS PWM Two-Switch Forward Converter With Minimum Number of Components

Bahrami, Hamid; Allahyari, Hesamodin; Adib, Ehsan

doi:10.1109/tie.2021.3131876

Cited by 10 publications

(2 citation statements)

References 31 publications

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“…In addition to the advantages of high gain and low input current ripple, which is very important, creating soft switching conditions that lead to increased efficiency is of particular importance. The soft switching techniques such as zero voltage switching (ZVS) [23][24][25][26], zero current switching (ZCS) [27][28][29], or both (ZVZCS) [30,31] are used to eliminate the overlap of voltage and current. As a result, switching losses are reduced and efficiency is increased.…”

Section: Introductionmentioning

confidence: 99%

A new three winding coupled inductors high step‐up DC–DC converter with low input current ripple

Vesali

2023

IET Power Electronics

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A new high step‐up DC–DC converter is proposed in this study. In the proposed converter with voltage lift technique and coupled inductors (CIs) a high voltage gain is achieved. Although the proposed converter has coupled inductors, the input current is continuous and the input current ripple is low. The proposed converter has only one switch and does not have any auxiliary switch, in which the control of the switch is easy. Soft switching condition is presented for the switch in the converter as zero current switching (ZCS) for turning on instant and zero voltage switching (ZVS) for turning off instant, in which the efficiency is increased. For all diodes expect two diodes in the converter ZCS condition is provided when diodes turn off that reverse recovery problem is solved for these diodes. The proposed converter is fully analyzed and described operation of it. To confirm theoretical analysis, 300 W of the proposed converter is implemented and tested, for which in full load an efficiency of 96.5% is achieved.

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Section: Introductionmentioning

confidence: 99%

A new three winding coupled inductors high step‐up DC–DC converter with low input current ripple

Vesali

2023

IET Power Electronics

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“…In many applications, isolated DC-DC converters such as halfbridge, full-bridge, flyback, and forward are widely employed as power supplies [1][2][3][4][5][6][7]. Among the isolated DC-DC converters, flyback and forward structures are convenient for low-power applications for their simplicity and low cost [8,9].…”

Section: Introductionmentioning

confidence: 99%

A self‐driven synchronous rectification wide‐range ZVS single‐switch forward converter controlled using the variable inductance

Jalise

Allahyari

Shoaei

et al. 2022

IET Power Electronics

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A new single switch ZVS forward converter with a wide soft-switching range is proposed here. Compared to the conventional forward converter, the proposed converter uses fewer components and operates under ZVS soft switching. A capacitor, along with both the leakage and magnetizing inductances, provides ZVS soft switching and transformer core reset. To regulate the output voltage against the input voltage and the load variations, an inductor is added to the converter. The inductance of the additional inductor varies with the direct current (DC) of the DC bias winding to regulate the output voltage. Therefore, the duty cycle and the switching frequency are constant in the proposed converter. With the constant duty cycle and the constant switching frequency, the wide ZVS soft switching is achieved. The proposed converter is completely analysed theoretically. The finite element analysis is used to design the additional inductor. By designing an experimental prototype, the theoretical analysis is justified using the experimental results.

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Planar Transformer with None Overlapping Winding as Current Balancing Compensator for Paralleled SiC MOSFETs

Allahyari

Sarfejo

Bahrami

et al. 2022

2022 30th International Conference on Electrical Engineering (ICEE)

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A Self-Driven Synchronous Rectification ZCS PWM Two-Switch Forward Converter With Minimum Number of Components

Cited by 10 publications

References 31 publications

A new three winding coupled inductors high step‐up DC–DC converter with low input current ripple

A new three winding coupled inductors high step‐up DC–DC converter with low input current ripple

A self‐driven synchronous rectification wide‐range ZVS single‐switch forward converter controlled using the variable inductance

Planar Transformer with None Overlapping Winding as Current Balancing Compensator for Paralleled SiC MOSFETs

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