| Autor: |
Weston D. Braun, Eric A. Stolt, Kristi Nguyen, Jeronimo Segovia-Fernandez, Sombuddha Chakraborty, Ruochen Lu, Juan M. Rivas-Davila |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
IEEE Open Journal of Power Electronics, Vol 5, Pp 286-294 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2644-1314 |
| DOI: |
10.1109/OJPEL.2024.3365029 |
| Popis: |
Piezoelectric resonators promise to increase dc-dc converter power density by replacing inductive components. However, piezoelectric resonators are not direct circuit level replacements for inductors, requiring new topologies. In this paper, we present a stacked converter using two piezoelectric resonators, providing improved efficiency at low conversion ratios. This converter is realized with a lithium niobate thickness-shear mode resonator with interdigitated electrodes that allow the two resonators required for the topology to be realized as tightly matched sub-resonators on the same substrate. The 180 V to 60 V converter operates between 6.15 MHz and 6.35 MHz and achieves a resonator-level power density of $\text{1.34}\;\text{kW}/\text{cm}^{3}$. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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