研究目的
Investigating the development of a fault-tolerant LED driver architecture that combines the benefits of fault tolerance, multiple and independent fixture control, and full dimming range, on a single LED driver.
研究成果
The proposed fault-tolerant LED driver architecture successfully combines the benefits of fault tolerance, multiple and independent fixture control, and full dimming range. Simulation and experimental results confirm the effectiveness of the proposed driver and reconfiguration strategies in minimizing the depreciation of luminous flux during post-fault operation.
研究不足
The study focuses on open-circuit and short-circuit faults in semiconductors and does not extensively cover faults in other components. The effectiveness of reconfiguration strategies may vary depending on the pre-fault operation point and supply voltage.
1：Experimental Design and Method Selection:
The study proposes a fault-tolerant LED driver architecture derived from the single-inductor multiple-output (SIMO) topology. It includes the design rationale, theoretical models, and detailed procedures of the experimental methods.
2：Sample Selection and Data Sources:
The study uses simulation models and experimental setups to validate the proposed LED driver architecture.
3：List of Experimental Equipment and Materials:
The study mentions the use of a dSPACE DS1103 board for control functions, with parameters such as input voltage, inductance, capacitance, and number of LEDs per fixture specified.
4：Experimental Procedures and Operational Workflow:
The study describes the operation principles of the proposed LED driver, including current control, time-sharing, and dimming functions, and the implementation of reconfiguration strategies for post-fault operation.
5：Data Analysis Methods:
The study uses simulation and experimental results to assess the effectiveness of the proposed fault-tolerant LED driver and reconfiguration strategies.
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