What Is the Nature of Luminous Diode

Lighting diode is now widely used and has a high purchase rate. It can be used on electronic products, lighting, calendars, calendars, street lights, medical equipment, etc. What I want to explain today is some of the basic properties of the light emitting diode. 1. Power LED knot temperature and thermal resistance in different currents research research. Measurement by various colors of color LED temperature and thermal resistance under different driving currents. (1) The thermal resistance values of various colors of LEDs have become larger with the increase of the driving current. 2. Among them, when the Blu -ray and white light LED based on Ingan materials, the heat resistance rises rapidly when the rated current is less than the rated current;. Other colors LED thermal resistance is basically unchanged as the driving current changes. 3. The knot temperature also increases with the increase of the driving current. 4. Increased temperature drive current; 1. Analysis believes that as the driving current increases, the current squeezing effect of the internal current of LED lamp beads will cause the current to reduce the efficiency of the light output (decreased radiation compound), which will lead to knots. The temperature rise, and the increase in the temperature will cause the heat guidance rate of LED lamp beads to change. Some groups have studied the GAN thermal conductivity from 2.05W/(CM·K) Fall to 1.75W/(CM·K); others studied that the temperature of the GAN heat conduction from 2.0W/(CM·k) Fall to 1.6W/(CM·K). Conversely, the decline in the heating coefficient of the material will restrict the thermal conductivity of LED lamp beads, and further improve the temperature of LED lamp beads. In this way, it will even form a vicious circle. In addition, excessive currents will also cause changes in the loss between the contact layers of the LED lamp beads and the degeneration of welded welds, which will also cause the temperature of LED lamp beads to rise. The above is the basic nature of the luminous diode.