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Optimal Design and Tradeoff Analysis of Planar Transformer in High-Power DC–DC Converters
An improved interleaving structure with optimal behaviors is proposed, which constructs the top layer paralleling with the bottom layer and then in series with the other turns of the primary, so that a lower magnetomotive force ratio m can be obtained, as well as minimized ac resistance, leakage inductance, and even stray capacitance. Expand
Overview of Planar Magnetic Technology—Fundamental Properties
The momentum toward high efficiency, high frequency, and high power density in power supplies limits wide use of conventional wire-wound magnetic components. This paper gives an overview of planarExpand
Calculation of Leakage Inductance for High-Frequency Transformers
Frequency-dependent leakage inductance is often observed. The high-frequency eddy current effects cause a reduction in leakage inductance. The proximity effect between adjacent layers is responsibleExpand
Analysis and Design of a Bidirectional Isolated DC–DC Converter for Fuel Cells and Supercapacitors Hybrid System
Electrical power systems in future uninterruptible power supplies or electrical vehicles may employ hybrid energy sources, such as fuel cells and supercapacitors. It will be necessary to efficientlyExpand
The analysis and comparison of leakage inductance in different winding arrangements for planar transformer
The coupling of the windings can be easily increased by using multiply stacked planar windings connection. Interleaving is a well-known technique used to reduce leakage inductance and minimizeExpand
Leakage Inductance Calculation for Planar Transformers with a Magnetic Shunt
The magnetic shunt is generally inserted in a planar transformer to increase the leakage inductance, which can be utilized as the series inductor in resonant circuits such as the LLC resonantExpand
Four Quadrants Integrated Transformers for Dual-Input Isolated DC–DC Converters
A common limitation of power coupling effect in some known multiple-input dc-dc converters has been addressed in many literatures. In order to overcome this limitation, a new concept for decouplingExpand
Analysis and modeling of integrated magnetics for LLC resonant converters
This paper investigates the method in depth to make it applicable to integrate resonant inductor for the LLC resonant converters and indicates that the magnetic shunt can in some extent minimize fringing effects. Expand
Efficiency Study of Vertical Distance Variations in Wireless Power Transfer for E-Mobility
A wireless power transfer (WPT) system is a safe, convenient, and smart charging solution for electric vehicle (EV) users. However, a drawback of the WPT systems is the reduced efficiency inExpand
High frequency LLC resonant converter with magnetic shunt integrated planar transformer
High Frequency LLC requires a smaller resonant inductance which is usually implemented by transformer leakage inductance. However, this small resonant inductance is difficult to deal with a wideExpand