研究目的
To introduce a novel power transistor, named power distar, consisting of only LED and Si solar cell, and its application to EV drive control.
研究成果
The study successfully developed a novel power transistor, the distar, consisting of only LED and Si solar cell, with performance comparable to Si power transistors. A superpower distar with an output as large as 50kW was developed for EV applications, demonstrating successful motor control of an electric cart for the elderly. The research highlights the potential of distar transistors in power electronics and EV drive control.
研究不足
The initial distar with a single LED had a low common-base current amplification factor α (0.3 to 0.4), limiting its use as a current and power amplifier. The development of a distar with α nearly 0.99 required connecting three LEDs in series and precise adjustment of the gap between LED and Si solar cell.
1：Experimental Design and Method Selection:
The study involves the development and testing of a novel transistor named 'distar' composed of LED and Si solar cell. The methodology includes theoretical modeling based on the Internal Photovoltaic Effect Theory and practical experimentation with various configurations of LEDs and Si solar cells to achieve current and power amplification.
2：Sample Selection and Data Sources:
High power infrared LED and Si photodiode were used initially, followed by experiments with various combinations of LEDs (OSRAM) and a 3cm×6cm single crystal Si solar cell.
3：List of Experimental Equipment and Materials:
High power infrared LED, Si photodiode, Osram LEDs, single crystal Si solar cell (photovoltage: 0.5V), and a 155mm-square Si solar cell for superpower distar.
4：5V), and a 155mm-square Si solar cell for superpower distar.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The process involved connecting LEDs and Si solar cells in series, adjusting the gap between LED and Si solar cell with accuracy of 10μm, and testing the configurations in circuits for amplification and motor control applications.
5：Data Analysis Methods:
The performance was evaluated based on the common-base current amplification factor α, with comparisons made to commercially available transistors.
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