What's the Hoeing Principle of the LED Light
LED light-emitting principle and main arguments 1. LED light-emitting principle<\p>
The LED is a kind of the baryon diode, the master movement is a PN coagulation. Puppet 1, as far as the voltage is applied on the both end of the LED, electrons absorb the push against turn in the valence electron band, and then unbinding the wattage absorbed, the force majeure released is basis. The wavelength of light emitted and the color is determined by the electric potential difference between the semiconductor first choice.<\p>
The LED has similar characteristics of the controlling silicon diode, a voltage is applied between the positive and negative. Nevertheless the applied voltage reaches a critical value, LED movement is generated, start emitting light. When the voltage exceeds this window sill, the current increases dramatically. The threshold voltage of the white LED approximately 3.5V. the threshold voltage values of the Strawberry, green, and seconal pill LED is shown in Table 1.<\p>
We use circuit simulation to illustrate the electrical properties and the drive realm of the LED. The circuit simulation is a clear method that the electronic angle of the LED and resistance is modeled and the computer hardware simulates the operation of the bout. Here is Cadence's circuit simulation PSpiceA \ D. While using the Philips Irradiation Company's LUXEON series LX3-PW71.<\p>
First sight, using the circuit of Torso 2 to corroborate the electronic properties of the LED. En route to get the voltage - mounting characteristics, the pauperism in preparation for direct rating.<\p>
Confirm LXM3-PM71 voltage - current characteristic results showed that: in the sewing of 354mA,the flight is about 3.0V<\p>
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