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Content Provider | IET Digital Library |
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Author | Heris, Pedram Chavoshipour Saadatizadeh, Zahra Rostami, Naghi |
Abstract | In this study, a quadratic-based transformerless high step-down DC-DC buck converter is presented. There are two switching patterns applied to the switches. Through the first switching pattern, the proposed converter provides a constant step-down voltage conversion ratio for the whole ranges of duty cycles. On the other hand, by using an interleaved switching pattern for the proposed converter the input voltage will be divided equally between the primary capacitors, as a result, low voltage stress will be across the semiconductor components. This feature allows the designer to select switches and diodes with lower voltage ratings. However, with the interleaved switching pattern, the converter will have two different voltage conversion ratios for duty cycles larger and less than 0.5. Furthermore, the proposed converter is capable of providing a high range of currents without applying extremely narrow duty ratios. Theoretical analysis is provided in this study. To show the merits of the proposed converter, it is compared with other similar recently presented converters. A 430 W prototype of the proposed converter with 600 V/20 V is implemented and experimental results are presented and compared with the theoretical ones. |
Starting Page | 368 |
Ending Page | 382 |
Page Count | 15 |
ISSN | 17554535 |
Volume Number | 12 |
e-ISSN | 17554543 |
Issue Number | Issue 3, Mar (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/12/3 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2018.5504 |
Journal | IET Power Electronics |
Publisher Date | 2018-11-12 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Constant Step-down Voltage Conversion Ratio Conversion Ratios DC-DC Power Converter Duty Cycles Interleaved Switching Pattern Low-voltage Stress Power 430.0 W Power Electronics Power Supply Preselected Duty Cycle Primary Capacitor Quadratic-based Transformerless High Step-down DC–DC Buck Converter Supervisory Circuit Switching Converter Transformerless Quadratic-based High Step-down DC–DC Converter Voltage 20.0 V Voltage 600.0 V |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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