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Content Provider | IET Digital Library |
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Author | Asghari, Amin |
Abstract | In this study, a new zero voltage switching (ZVS) synchronous buck converter with ultra-high step-down conversion ratio is introduced. By combining coupled inductors and energy-transferring capacitors, operating duty cycle is significantly extended while the voltage stress across the switches is reduced. Thereby, extremely low voltage gain can be achieved and the conduction loss is reduced owing to using switches with lower voltage rating. Also, by applying the interleaved method and complementary pulses for switches, the current stress and the output current ripple are reduced. In the proposed converter, soft switching condition is achieved for all switches without any auxiliary circuit. As a result, the overall efficiency of the introduced converter is improved. The converter operation and its design considerations are discussed. Experimental results are presented to validate the theoretical analysis. |
Starting Page | 2039 |
Ending Page | 2048 |
Page Count | 10 |
ISSN | 17554535 |
Volume Number | 13 |
e-ISSN | 17554543 |
Issue Number | Issue 10, Aug (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/13/10 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2019.1113 |
Journal | IET Power Electronics |
Publisher Date | 2020-03-31 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Capacitor Converter Operation Current Stress DC-DC Power Converter Energy-transferring Capacitor Extremely Low Voltage Gain Inductor Inductors And Transformer Introduced Converter Low Switch Voltage Stress Lower Voltage Rating Operating Duty Cycle Power Converter Power Electronics Power Supplies to Apparatus Power Supply Soft Switching Condition Supervisory Circuit Switched Mode Converter Switching Converter Ultra-high Step-down Conversion Ratio Ultra-high Step-down ZVS Synchronous Buck Converter Zero Current Switching Zero Voltage Switching |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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