一种用于声学通信的LC振荡器低功耗压电扬声器驱动器

2019 International SoC Design Conference (ISOCC) Pub Date : 2019-10-01 DOI:10.1109/ISOCC47750.2019.9027681

Eunseok Lee, Sujin Park, Nahmil Koo, Seonghwan Cho

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引用次数: 0

摘要

本文提出了一种基于开关键控调制的低功率压电扬声器声通信驱动器。为了降低驱动电容式扬声器所消耗的动态功率，所提出的驱动器采用LC振荡器实现。使用片外元件实现了概念验证原型，实验结果表明，与传统驱动器相比，基于开关键控的LC振荡器功耗降低了近50%。

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A Low-Power Piezoelectric Speaker Driver Using LC Oscillator for Acoustic Communication

In this paper, we propose a low-power piezoelectric speaker driver for acoustic communication based on on-off keying modulation. To reduce the dynamic power consumed to drive the capacitive speaker, the proposed driver is implemented using an LC oscillator. A proof-of-concept prototype is implemented using off-chip components, and experimental results show that the proposed LC oscillator based on-off keying reduces the power consumption by nearly 50 % compared to a conventional driver.

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2019 International SoC Design Conference (ISOCC)

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