Resources | Publications
Read our peer-reviewed conference papers
At ICERGi, we are committed to advancing the field of power electronics through innovation and knowledge sharing. Our team has been enthusiastic about presenting at world-class conferences such as APEC, contributing to global discourse with peer-reviewed research. This page features our publications on key topics including our proprietary 3-level bridgeless totem-pole topology, advanced gate driver techniques, digital control strategies, and more. We invite you to explore the technical depth and practical relevance of our work.
Stack Multiphase Asymmetrical Half-Bridge Topology Offering Advance Performance and Efficiency
In quest of higher efficiency and power density, various studies have been carried out to boost the performance of conventional asymmetrical half bridge (AHB) topologies through either magnetics optimisation or deployments of fully soft switching schemes.
Author: George Young and Dr. Trong Tue Vu PhD
Publication Date: 2016
Implementation of Multi-level Bridgeless PFC Rectifiers for Mid-Power Single Phase Applications
Multi-level approaches to AC/DC power conversion have been successfully deployed in high-voltage high-power industrial applications, and are recently considered for mid-power ranges due to their capability of reducing component sizes and improving efficiency.
Author: George Young and Dr. Trong Tue Vu PhD
Publication Date: 2016
A Low-Profile, High Power Density Inverter with Minimal Energy Storage Requirement for Ripple Cancellation
An inherent characteristic of a Single-Phase Inverter is the DC-link voltage ripple. In order to ensure Maximum Power Point Tracking (MPPT) in Photovoltaic (PV) systems, the voltage ripple needs to be suppressed through use of an energy buffering device which can be a passive, i.e. typically a capacitor or active in the form of an Active Power Filter (APF).
Author: Edgaras Mickus, Dr. Trong Tue Vu PhD and Terence O’Donnell
Publication Date: 2016
99% Efficiency 3-Level Bridgeless Totem-pole PFC Implementation with Low-voltage Silicon at Low Cost
Achieving 99% efficiency for totem-pole PFC front-end stages with wide band gap (WBG) devices is no longer seen as a rare accomplishment. Design concerns revolving around the maturity of WBG technologies, the lack of dual sources, and very high component costs, lead to a quest for a medium-term low-cost mature silicon-based solution.
Author: Edgaras Mickus and Dr. Trong Tue Vu PhD
Publication Date: 2019
Feasibility Study of Compact High-efficiency Bidirectional 3-Level Bridgeless Totem-pole PFC/Inverter at Low Cost
Bidirectional converters are increasingly being used in electric vehicle chargers and self-consumption for residential/communities with energy-storage capabilities. Among existing bidirectional solutions, bridgeless totem-pole arrangement has been of great interest to both academia and industry due to its advantages of enabling ultra-high efficiency, i.e. above 99%, at low complexity.
Author: Dr. Trong Tue Vu PhD and Rytis Beinarys
Publication Date: 2020
Low-cost Compact Approach to Reinforced Isolated
Drive for LLC Converters
Modern power converters are expected to have high efficiency and features like datalogging. This typically results in a design with a digital controller implemented on the secondary side, which means having to drive transistors across the galvanic isolation barrier.
Author: Rytis Beinarys and Dr. Trong Tue Vu PhD
Publication Date: 2021
Hybrid Voltage Balancing Control in 3-level Bridgeless Totem-pole PFC
Series connected Si MOSFETs provide a useful method to achieve greater voltage blocking capabilities in high-voltage power converter applications. However, the challenge imposed using this method is a naturally unbalanced voltage between series stacked devices. Voltage sharing imbalance can occur due to gate signal timing delay, device tolerances and layout parasitics potentially leading to overvoltage for a given device and subsequent converter failure.
Author: Rytis Beinarys and Dr. Trong Tue Vu PhD
Publication Date: 2021
Practical Switching Frequency Control for Improved Efficiency in CCM Boost PFC Converters at Light Load
Existing control methods in continuous conduction mode (CCM) boost PFC topologies employ a fixed switching frequency over the whole range of operation. Besides a simple implementation, retaining the switching frequency unchanged, places front stage converters at a suboptimal level
during light load operating conditions.
Author: Rytis Beinarys and Dr. Trong Tue Vu PhD
Publication Date: 2022
Flying Capacitor Voltage Imbalance Protection in Multilevel Bidirectional Inverters during Surge
Input voltage surge events due to lightning strike and short-term transients such as input voltage dips are of a significant interest when flying capacitor multilevel (FCML) inverters are considered. During these fast dynamic events charge balance of flying-capacitor(s) can be compromised. This paper presents a time-efficient and reliable surge detection method to prevent FC drift during input voltage transients in FCML single-phase PFC/inverter systems.
Author: Rytis Beinarys, Seamus O’Driscoll and Dr. Trong Tue Vu PhD
Publication Date: 2023
400V SiC in Next-Generation 3-Level Flying Capacitor Bridgeless Totem-pole PFC
This paper proposes the design and implementation of a 3-level flying capacitor bridgeless totem-pole power factor correction (3L-FC-BTP-PFC) converter utilising recently launched 400V Silicon Carbide (SiC) devices. It outlines key considerations and design challenges associated with adopting 400V SiC devices in place of a low-voltage series-connected silicon (Si) MOSFET arrangement.
Author: Rytis Beinarys and Seamus O’Driscoll
Publication Date: 2025