Now we come to the most popular application of the diode : rectification. Simply defined, rectification is the conversion of alternating current AC to direct current DC. This involves a device that only allows one-way flow of electric charge. As we have seen, this is exactly what a semiconductor diode does.
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We have discussed diode features for our users for which they can use appropriate one for their projects. Basically, Diode is defined as a two terminal electronic components having a p-n junction. It is a semiconductor component which was first introduced in Nowadays, silicon is mostly used and germanium and selenium are rarely used. Basic function of a diode is to allow current to pass in forward and backward direction. The backward process is called rectification which functions in converting an alternating current to direct current.
Diodes are designed to produce direct current when infrared or ultraviolet strikes them. These semiconductor diodes are called photovoltaic cells and applicable in photo sensors and solar energy systems. Moreover diodes can be used as rectifiers, voltage regulators, switches, signal modulators, oscillators, signal limiters, signal demodulators and signals mixers.
Diode main functioning is passing electric current in one direction called forward biasing and blocking current in negative direction referred as reverse biasing. Such unidirectional behavior is referred as rectification and converts alternating current to direct current.
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