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Abstract
The switching losses occurring between full soft-switching and hard-switching are described inadequately, and previous attempts of quantifying incomplete zero-voltage switching losses are topology specific and not applicable for any general half-bridge circuit. The ability to quantity these losses is crucial to optimize the converter efficiency across a wide operating range. This paper proposes a general method for accurately estimating the incomplete zero-voltage switching dynamics and losses in half-bridge converters, including the non-linear output capacitance of the semiconductors. The charge balance during the switching transition period is solved to determine the depth of incomplete zero-voltage switching, which can be used to predict the switching losses. The method is verified experimentally, and is shown to be able to predict the depth of incomplete zero-voltage switching accurately, which can be used to calculate the related losses.
Originalsprog | Engelsk |
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Titel | 2023 IEEE 10th Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2023 |
Forlag | IEEE |
Publikationsdato | 2023 |
Artikelnummer | 10382222 |
ISBN (Trykt) | 9798350337143 |
ISBN (Elektronisk) | 9798350337136 |
DOI | |
Status | Udgivet - 2023 |
Navn | IEEE Workshop on Wide Bandgap Power Devices & Applications (WiPDA) |
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ISSN | 2641-8274 |
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