Work

Piezoelectric-Resonator-Based Power Supply for an Ozone-Generating Dielectric Barrier Discharge Reactor

Year: 2025

Type: article

Abstract: In this work, a dielectric barrier discharge (DBD) reactor power supply designed for operation with a low input voltage is presented. A piezoelectric resonator (PR) is used to provide voltage gain and high efficiency in a small volume for portable (point of use) ozone generation, suitable for the disinfection of surfaces, for example. The power supply was coupled to a small, asymmetrical DBD reactor and achieved an efficiency of 63% and an ozone generation efficacy of 67 g/kWh when operating at 4.4 W. The use of a PR to provide voltage gain has several advantages over, for example, a traditional electromagnetic transformer. The PR has monolithic construction for reliability, is inherently insulated against high voltage due to the ceramic material, can operate up to$300~^{\circ }$C, and its resonant behavior allows the power supply to operate with zero-voltage switching.

Source: IEEE Transactions on Plasma Science

DOI: 10.1109/tps.2025.3598886

Authors: Henry O’Keeffe, Martin P. Foster, Jonathan N. Davidson

Institution: University of Sheffield

Language: English

Topic: Plasma Applications and Diagnostics

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

SDG: Affordable and clean energy

Open Access status: green

Funder: Engineering and Physical Sciences Research Council