研究目的
Investigating the design and modeling of a two-phase resonant converter for driving high-power LED lamps with high-frequency pulsed current free of instabilities and flicker effect, enabling visible light-based communication.
研究成果
The small-signal model of the two-phase phase-shift-modulated LCsCp resonant converter has been validated for high-power LED lamps, enabling wide-range PWM dimming and visible light communication. The converter's design meets IEEE PAR 1789 recommendations, with experimental results showing efficient performance and capability for data transmission.
研究不足
The model and experimental results are in good agreement up to 30 kHz, indicating a limitation in frequency range for validation. The study focuses on a specific type of LED lamp and converter design, which may not be universally applicable.
1:Experimental Design and Method Selection:
The study involves the design and modeling of a two-phase resonant converter, utilizing a Spice model for dynamic response evaluation.
2:Sample Selection and Data Sources:
A 120 W prototype for street lighting applications is built to validate the analysis and modeling.
3:List of Experimental Equipment and Materials:
Includes LED arrays BXRA-C2000, IRF840LC MOSFET transistors, ferrite core RM10 of material 3C90 for resonant inductors, and various capacitors and resistors.
4:Experimental Procedures and Operational Workflow:
The converter's performance is tested under nominal conditions, including PWM dimming and data transmission capabilities.
5:Data Analysis Methods:
The dynamic response is analyzed using a Spice model, with experimental validation up to 30 kHz.
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