Work

Class E ZVS Resonant Inverter with CLC Filter and PLL-Based Resonant Frequency Tracking for Ultrasonic Piezoelectric Transducer

Year: 2025

Type: article

Abstract: This paper presents a Class E zero-voltage soft-switching (ZVS) resonant inverter integrated with a CLC filter and a digital resonant frequency tracking technique for driving a piezoelectric ceramic transducer (PZT) in ultrasonic cleaning applications. A digital signal processor (DSP) is used to dynamically monitor and adjust the operating frequency in response to slight variations in the cleaning load, employing a phase-locked loop (PLL) control scheme. The proposed method ensures that the inverter maintains ZVS operation across a frequency range from 30.0 kHz to 34.0 kHz, thereby improving energy efficiency and reducing switching losses. The system is capable of delivering a stable power output of 100 W. Both the simulation and experimental results validate the effectiveness of the proposed technique, demonstrating improved performance under varying load conditions. The combination of CLC filtering and frequency tracking offers a compact and robust solution suitable for ultrasonic cleaner systems and similar resonant-load applications.

Source: Journal of Low Power Electronics and Applications

DOI: 10.3390/jlpea15030054

Authors: Apinan Aurasopon, Boontan Sriboonrueng, Jirapong Jittakort, Saichol Chudjuarjeen

Institutions: Mahasarakham University, Rajamangala University of Technology, Rajamangala University of Technology Krungthep

Language: English

Topic: Induction Heating and Inverter Technology

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,172