A Stacked Piezoelectric Converter Using a Segmented IDT Lithium Niobate Resonator

被引：3

作者：

Braun, Weston D. ^{[1
]}

Stolt, Eric A. ^{[1
]}

Nguyen, Kristi ^{[2
]}

Segovia-Fernandez, Jeronimo ^{[3
]}

Chakraborty, Sombuddha ^{[3
]}

Lu, Ruochen ^{[2
]}

Rivas-Davila, Juan M. ^{[1
]}

机构：

[1] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

[2] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA

[3] Texas Instruments Inc, Kilby Labs, Santa Clara, CA 95051 USA

来源：

IEEE OPEN JOURNAL OF POWER ELECTRONICS | 2024年 / 5卷

关键词：

DC-DC power converters; piezoelectric devices; resonant converters;

D O I：

10.1109/OJPEL.2024.3365029

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 1.34 k W cm(3).

引用

页码：286 / 294

页数：9

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