NDLI: Soft switching resonant converter with flying capacitor and two series half-bridge legs

Content Provider	IET Digital Library
Author	Lin, Bor Ren Chen, Chih Chieh
Abstract	A new soft switching resonant converter is presented in this study to reduce the switching losses on power metal oxide semiconductor field effect transistors (MOSFETs) and overcome the reverse recovery losses on rectifier diodes. Two half-bridge legs connected in series and two split capacitors are adopted to limit the voltage stress of each MOSFET at half-input voltage and to reduce the current rating of transformer windings and passive components at output side. A flying capacitor is connected between two half-bridge legs in order to automatically balance two input capacitor voltages. Therefore MOSFETs with low-voltage stress can be used at high-input voltage applications. The resonant converter is adopted in each half-bridge circuit to reduce the switching losses of active devices. Finally, experiments based on a laboratory prototype are provided to verify the circuit performance.
Starting Page	811
Ending Page	818
Page Count	8
ISSN	17554535
Volume Number	7
e-ISSN	17554543
Issue Number	Issue 4, Apr (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/7/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2013.0181
Journal	IET Power Electronics
Publisher Date	2013-10-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Active Device Automatic Two Input Capacitor Voltage Balancing Bridge Circuit Capacitor Circuit Performance Verification Current Rating Reduction Flying Capacitor Half-bridge Circuit High-input Voltage Application Inductors And Transformer Insulated Gate Field Effect Transistors Low-voltage Stress Passive Component Power Converter Power Electronics Power Metal Oxide Semiconductor Fleld Effect Transistors Power MOSFET Power Semiconductor Device Power Supplies to Apparatus Power Supply Rectifler Diode Resonant Power Converter Reverse Recovery Loss Series Half-bridge Legs Soft Switching Resonant Converter Split Capacitor Supervisory Circuit Switching Converter Switching Loss Reduction Transformer Windings Zero Current Switching Zero Voltage Switching
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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