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- W3208585220 startingPage "113193" @default.
- W3208585220 abstract "Piezoelectric transformers (PTs) are usually designed in multilayers to obtain a large voltage transformation ratio while reducing the driving voltage. In contrast to the complex manufacturing process of multilayer PTs, this study proposes a single-layer PT that works in planar expansion mode and can achieve different step-up ratios. In this method, the topological structures of the electrode division and the polarization region are designed cleverly in piezoelectric ceramics with different shapes (i.e., rectangle and circle). Therefore, a high voltage output with different step-up ratios can be obtained under low voltage excitation. This study also discusses the working principle of the two shapes of single-layer PTs and deduces the optimal inner and outer radius ratios of circular PTs. Then, combined with three-dimensional modeling, finite element software is utilized for the multi-physics simulation of the PTs. Lastly, single-layer rectangular and circular PTs with different step-up ratios are fabricated. The actual step-up ratios and working efficiencies are measured experimentally. The experimental results are consistent with theoretical analysis and simulation data, thus verifying the feasibility of the single-layer PT design with different step-up ratios." @default.
- W3208585220 created "2021-11-08" @default.
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- W3208585220 date "2021-12-01" @default.
- W3208585220 modified "2023-10-18" @default.
- W3208585220 title "Single-layer piezoelectric transformers with a unique design of polarization topologies" @default.
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- W3208585220 doi "https://doi.org/10.1016/j.sna.2021.113193" @default.
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