A periodically poled bi-layer lithium niobate resonator excites a second-order thickness mode at 19.23 MHz with Q=3187 and k2=29%, claiming the highest f*Q among piezoelectric power resonators.
Resonant current estimation and phase-locked loop control system for inductorless step-up single piezo element-based (SUPRC) DC- DC converter,
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Periodically Poled Piezoelectric Lithium Niobate Resonator for Piezoelectric Power Conversion
A periodically poled bi-layer lithium niobate resonator excites a second-order thickness mode at 19.23 MHz with Q=3187 and k2=29%, claiming the highest f*Q among piezoelectric power resonators.