The diode is one of the most important components in the electrical engineering. The function which they are satisfied, since the beginning of the twentieth century explored. This involves the ability of a component, the electricity only under certain conditions to lead. 

Above all, play the flow direction and the voltage a major role. Diodes manage the flow in one direction only, the stream flowing in a different direction, locks the diode and acts as an insulator. To this effect, semiconductors are used. Silicon and germanium are the most common elements. The crystals have are endowed with a p-doped and the other n-doped. Through its assembly is to be a transitional layer.

All of their abilities, plug in the interplay of these small crystals and are explained here.

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