A Self-Oscillating boosting amplifier with adaptive soft switching control for piezoelectric transducers

Saifullah Amir; Ronan A.R. van der Zee; Bram  Nauta

doi:10.1109/JSSC.2018.2871633

A Self-Oscillating boosting amplifier with adaptive soft switching control for piezoelectric transducers

Saifullah Amir, Ronan A.R. van der Zee, Bram Nauta

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

This paper describes the design of a high-voltage amplifier for a piezoelectric transducer used in underwater communication applications, which incorporates boosting and signal generation within a single boost converter stage improving the total efficiency of the system. The proposed architecture combines hysteretic ripple current-mode control with an adaptive soft switching technique to achieve improved power efficiency over the full output power range. This is achieved by dynamically controlling the inductor current ripple to keep the converter running in soft switching. The feedback control and the soft switching regulation are implemented in a 0:25 μm 60V TSMC process with an external power stage. The system achieves a peak efficiency of 85% at 20W of output power up to 30kHz signal frequency.

Original language	English
Pages (from-to)	253-265
Number of pages	13
Journal	IEEE journal of solid-state circuits
Volume	54
Issue number	1
DOIs	https://doi.org/10.1109/JSSC.2018.2871633
Publication status	Published - 1 Jan 2019

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10.1109/JSSC.2018.2871633

Amir2019self-oscillatingAccepted author version, 4.95 MB

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title = "A Self-Oscillating boosting amplifier with adaptive soft switching control for piezoelectric transducers",

abstract = "This paper describes the design of a high-voltage amplifier for a piezoelectric transducer used in underwater communication applications, which incorporates boosting and signal generation within a single boost converter stage improving the total efficiency of the system. The proposed architecture combines hysteretic ripple current-mode control with an adaptive soft switching technique to achieve improved power efficiency over the full output power range. This is achieved by dynamically controlling the inductor current ripple to keep the converter running in soft switching. The feedback control and the soft switching regulation are implemented in a 0:25 μm 60V TSMC process with an external power stage. The system achieves a peak efficiency of 85% at 20W of output power up to 30kHz signal frequency. ",

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AB - This paper describes the design of a high-voltage amplifier for a piezoelectric transducer used in underwater communication applications, which incorporates boosting and signal generation within a single boost converter stage improving the total efficiency of the system. The proposed architecture combines hysteretic ripple current-mode control with an adaptive soft switching technique to achieve improved power efficiency over the full output power range. This is achieved by dynamically controlling the inductor current ripple to keep the converter running in soft switching. The feedback control and the soft switching regulation are implemented in a 0:25 μm 60V TSMC process with an external power stage. The system achieves a peak efficiency of 85% at 20W of output power up to 30kHz signal frequency.

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A Self-Oscillating boosting amplifier with adaptive soft switching control for piezoelectric transducers

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Voltage Boosting Amplifier Techniques for Underwater Sensor Networks: Theory and Design

An improved modeling and analysis technique for peak current-mode control-based boost converters

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