High frequency, high efficiency, and high power density gan-based llc resonant converter: State-of-the-art and perspectives

SA Mortazavizadeh, S Palazzo, A Amendola… - Applied Sciences, 2021 - mdpi.com
Soft switching for both primary and secondary side devices is available by using LLC
converters. This resonant converter is an ideal candidate for today's high frequency, high …

LLC converters with planar transformers: Issues and mitigation

MA Saket, N Shafiei, M Ordonez - IEEE Transactions on power …, 2016 - ieeexplore.ieee.org
The use of LLC resonant converters has gained popularity in multiple applications that
require high conversion efficiency and galvanic isolation. In particular, many applications …

Interleaved LLC resonant converter with hybrid rectifier and variable-frequency plus phase-shift control for wide output voltage range applications

H Wu, X Zhan, Y Xing - IEEE Transactions on Power …, 2016 - ieeexplore.ieee.org
A family of two-phase interleaved LLC (iLLC) resonant converter with hybrid rectifier is
proposed for wide output voltage range applications. The primary sides of the two LLC …

Activation of the catalytic activity of thrombin for fibrin formation by ultrasound

P Zhao, S Huo, J Fan, J Chen… - Angewandte Chemie …, 2021 - Wiley Online Library
The regulation of enzyme activity is a method to control biological function. We report two
systems enabling the ultrasound‐induced activation of thrombin, which is vital for secondary …

Planar transformers with near-zero common-mode noise for flyback and forward converters

MA Saket, M Ordonez, N Shafiei - IEEE Transactions on Power …, 2017 - ieeexplore.ieee.org
Flyback and forward converters are two commonly used topologies for isolated low-power
applications. These converters are simple and cost effective and provide galvanic isolation …

Improving Planar Transformers for LLC Resonant Converters: Paired Layers Interleaving

MA Saket, M Ordonez, M Craciun… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
With the increasing demand for flat displays, slim telecom/IT power supplies, and portable
devices, the use of planar transformers (PTs) is becoming mandatory to achieve slim …

Planar transformers in LLC resonant converters: High-frequency fringing losses modeling

R Shafaei, MCG Perez… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Fringing losses play a detrimental role in high-frequency transformers. The tendency toward
higher power density and miniaturization of power converters leads to higher switching …

Three-Dimensional Frequency-Dependent Thermal Model for Planar Transformers in LLC Resonant Converters

R Shafaei, M Ordonez, MA Saket - IEEE Transactions on Power …, 2018 - ieeexplore.ieee.org
In this paper, a thorough thermal analysis is carried out in order to find an analytical three-
dimensional (3-D) frequency-dependent thermal model of planar transformers (PTs) used in …

PV Battery Charger Using an Resonant Converter for Electric Vehicle Applications

N Shafiei, M Ordonez, MAS Tokaldani… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
In electric vehicles with rooftop PV panels, the solar irradiance and surface temperature can
affect their performance and output voltages (eg, V pv= 24-45 V dc). In these systems, the …

Time domain analysis of LLC resonant converters in the boost mode for battery charger applications

N Shafiei, MA Saket, M Ordonez - 2017 IEEE Energy …, 2017 - ieeexplore.ieee.org
In order to support different types of rechargeable batteries (eg Li-Ion, Lead-Acid, NiMh), the
design of universal battery chargers must focus on wide output voltage regulation, rather …