Comparison of BSPT and PZT Piezoelectric Ceramic Transformers for High-Temperature Power Supplies
Comparison of BSPT and PZT Piezoelectric Ceramic Transformers for High-Temperature Power Supplies
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高温电源用 BSPT 和 PZT 压电陶瓷变压器的比较
DOI：
10.1002/adem.202200513
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发表时间：
2022
影响因子：
3.6
通讯作者：
Forrester J
中科院分区：
文献类型：
--
作者：
Forrester J
高温电力电子学是一个前沿的研究领域，特别是考虑到宽带隙半导体的广泛应用。本文对 (1−x)BiScO3−xPbTiO3(BSPT) 作为高温压电变压器 (PT) 材料的适用性进行了分析，并与最先进的 Pb(Zr1−xTix)O3(PZT) 进行了比较。最初，使用各种指标对两种材料进行比较，以证明 BSPT 作为构建专门用于高温应用的 PT 的材料的适用性。基于这两种材料的 PT 被设计和制造，然后使用阻抗测量来表征。最后，使用 PT 和在一定环境温度范围内测量的每个逆变器的性能来构建半桥谐振逆变器。这些实验的结果证实了 BSPT 对于 PT 应用的适用性，并表明 BSPT PT 在超过基于 PZT 的 PT 的温度下具有优异的性能。
High‐temperature power electronics is an advancing area of research, especially given the widespread availability of wide bandgap semiconductors. Herein, a suitability analysis of (1−x)BiScO3−xPbTiO3(BSPT) as a material for high‐temperature piezoelectric transformers (PTs) is presented and compared to state‐of‐the‐art Pb(Zr1−xTix)O3(PZT). Initially, both materials are compared using a variety of metrics to prove the suitability of BSPT as a material for constructing PTs specifically for high‐temperature applications. PTs based on the two materials are designed and fabricated, and then subsequently characterized using impedance measurements. Finally, half‐bridge resonant inverters are constructed using both PTs and the performance of each inverter measured over a range of ambient temperatures. The result of these experiments confirms the suitability of BSPT for PT applications and shows the excellent performance of BSPT PTs at temperatures in excess of that possible with PZT‐based PTs.