Journal ArticleDOI
Analysis and Design of a Nonisolated High Step-Down Converter With Coupled Inductor and ZVS Operation
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TLDR
In this paper , the authors presented a detailed analysis and design of a high step-down converter, which achieved high stepdown voltage gain without the need of extreme duty cycles by using coupled inductor.Abstract:
This article presents a detailed analysis and design of a high step-down converter. The proposed converter achieves high step-down voltage gain without the need of extreme duty cycles by using coupled inductor. The converter features low switch stresses, which reduces the conduction loss by using low voltage MOSFETs. Moreover, the magnetizing current of the coupled inductor is zero, which reduces the magnetic size. The leakage energy of the coupled inductor is recycled. Zero voltage switching is achieved to reduce switching loss and improve the EMI performance. In addition, continuous output current is achieved; hence, small filtering capacitor can be used. A hardware prototype is built and experimental results verify the feasibility of the step-down converter. read more
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References
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Journal ArticleDOI
Core Losses Under the DC Bias Condition Based on Steinmetz Parameters
TL;DR: In this article, different materials have been tested to gain information on how core losses are influenced by a dc premagnetization, and the Steinmetz graph (SPG) is introduced to calculate core losses under dc bias conditions.
Journal ArticleDOI
Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS
TL;DR: A merged two-stage dc-dc power converter for low-voltage power delivery is introduced and it is shown how the switched-capacitor stage can operate under soft charging conditions by suitable control and integration of the two stages.
Journal ArticleDOI
Ultrahigh Step-Down Converter
TL;DR: In this paper, an ultra-high step-down converter is presented, which combines one coupled inductor and one energy-transferring capacitor, and the corresponding voltage conversion ratio is much lower than that of the traditional synchronously rectified (SR) buck converter.
Journal ArticleDOI
A Family of Resonant Two-Switch Boosting Switched-Capacitor Converter With ZVS Operation and a Wide Line Regulation Range
TL;DR: In this paper, a two-switch boosting switched-capacitor converters (TBSC) with zero-current-switching (ZCS) operation and a wide line regulation range is proposed.
Journal ArticleDOI
Optimal Design of Planar Magnetic Components for a Two-Stage GaN-Based DC–DC Converter
TL;DR: In this paper, a two-stage dc-dc converter based on gallium nitride (GNT) was proposed, where the first regulated stage is a 2-phase interleaved buck converter and the second unregulated stage is an LLC (2-MHz) dc transformer.
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