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| Content Provider | IET Digital Library |
|---|---|
| Author | Esteki, Morteza Mohammadi, Mehdi Yazdani, Mohammad Rouhollah Adib, Ehsan Farzanehfard, Hosein |
| Abstract | Efficiency, power density and electromagnetic interference (EMI) stand among the main concerns in power electronics and determine the quality of a power converter. To address the aforementioned concerns, this study proposes a cost effective passive soft-switching technique using coupled inductor for pulse-width modulation (PWM) converters. Through providing soft-switching conditions, switching losses are reduced and the use of coupled inductor technique improves the power density. Since, the slope of voltage and current variations over time is reduced by the proposed passive soft-switching technique, the EMI level is expected to reduce. This technique can be applied to a wide range of PWM converters, however, the analysis is focused on a soft-switching boost converter to provide a framework. The experimental measurements of the realised 200 W boost converter show that the efficiency is improved by 2 and 3.8% as compared to a hard switching boost converter with and without an RCD snubber circuit, respectively. Moreover, the experimental EMI measurements indicate that with no external EMI filter, the proposed technique has reduced the main peak of EMI level by 8 dBµV (in comparison to its hard switching counterpart) which satisfies CISPR22 class A EMC standard limitation. |
| Starting Page | 792 |
| Ending Page | 800 |
| Page Count | 9 |
| ISSN | 17554535 |
| Volume Number | 10 |
| e-ISSN | 17554543 |
| Issue Number | Issue 7, Jun (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/10/7 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2016.0362 |
| Journal | IET Power Electronics |
| Publisher Date | 2017-02-06 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | CISPR22 Class A EMC Standard Limitation Coupled Inductor Technique Coupled Passive Snubber Current Variations Efficiency 2 Percent Efficiency 3.8 Percent Electromagnetic Compatibility Electromagnetic Interference EMI Level EMI Measurement Hard Switching Boost Converter Interference Passive Soft-switching Technique Power 200 W Power Converter Power Density Power Electronics Power Supplies to Apparatus PWM Converter PWM Power Converter RCD Snubber Circuit Snubbers Soft-switching Boost Converter Soft-switching Pulse-width Modulation Converter Switching Loss Voltage Slope Zero Current Switching Zero Voltage Switching |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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