Digital Signal Processing

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An Extensive I/P Voltage and Fixed Frequency of Single-Stage AC/DC LLC Resonant Converter


Affiliations
1 Department of Electrical and Electronics Engineering, Sri Subramanya College of Engineering and Technology, Sukkamanaikanpatti, Palani, Dindigul, India
2 Department of Electrical and Electronics Engineering, Sri Subramanya College of Engineering, India
     

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In this paper design of a single-stage LLC resonant converter are presented. A single-stage converter uses only one control signal to drive two power converters, a power factor corrector (PFC) converter and a dc/dc converter, for reducing the cost of the system. However, this simplicity induces power imbalance between two converters, and then, the bus voltage between two converters drifts and becomes unpredictable. To ensure that the bus capacitor voltage can be kept in a tolerable region, the characteristics of a PFC converter and an LLC tank are investigated, and then, a design procedure is proposed correspondingly. Finally, a single-stage LLC resonant converter is implemented to verify the analysis.

Keywords

AC–DC Power Conversion, LLC Resonant Power Conversion.
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  • An Extensive I/P Voltage and Fixed Frequency of Single-Stage AC/DC LLC Resonant Converter

Abstract Views: 157  |  PDF Views: 3

Authors

P. Ganesh
Department of Electrical and Electronics Engineering, Sri Subramanya College of Engineering and Technology, Sukkamanaikanpatti, Palani, Dindigul, India
T. Manokaran
Department of Electrical and Electronics Engineering, Sri Subramanya College of Engineering and Technology, Sukkamanaikanpatti, Palani, Dindigul, India
M. Sudha
Department of Electrical and Electronics Engineering, Sri Subramanya College of Engineering, India

Abstract


In this paper design of a single-stage LLC resonant converter are presented. A single-stage converter uses only one control signal to drive two power converters, a power factor corrector (PFC) converter and a dc/dc converter, for reducing the cost of the system. However, this simplicity induces power imbalance between two converters, and then, the bus voltage between two converters drifts and becomes unpredictable. To ensure that the bus capacitor voltage can be kept in a tolerable region, the characteristics of a PFC converter and an LLC tank are investigated, and then, a design procedure is proposed correspondingly. Finally, a single-stage LLC resonant converter is implemented to verify the analysis.

Keywords


AC–DC Power Conversion, LLC Resonant Power Conversion.