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What is Rectifier Diodes & Schottky Diodes?


What is a Rectifier Diode?

A rectifier diode primary reason is to rectify alternating currents. It's used to flow a current through a circuit in one direction, in contrast to elements like resistors a rectifiers current features a non-linear relationship to the voltage across it. The diode are going to be forward predisposition when positive voltage is being applied and can provides a valiant effort to figure as a brief out and permit the current to move through the diode uninhibitedly. Its main task is to convert an alternating current (AC) into an immediate current (DC) through the appliance of rectifier bridges. A Rectifier Diode can here and there be utilized as a Schottky Rectifier.

What is a Schottky Diode?

A Schottky Diode is in some cases alluded to as a Barrier Diode or a Hot Carrier Diode. The Schottky is a single type of electronic component which is a semiconductor. It has fast switching action with an accompanying low forward voltage drop, when current flows through the diode, a small voltage drop happens across the diode terminals. A standard diode has a voltage drop between 0.6 and 1.7 volts whereas a Schottkys drop is between 0.15 and 0.45 volts. This lower voltage drop facilitates a high switching speed as well as improved system efficiency.
There are a range of scope for the schottky diode, including:
Power Rectification: Schottky diodes will be utilized in high power applications due to its low forward voltage drop. These diodes will squander less force and may decrease the size of your heatsink.
Multiple Power Supplies: Schottky diodes likewise can help with keeping power isolated during a double force supply arrangement, similar to a mains supply and battery.
Solar Cells: Schottky diodes can help to maximize solar cell effectiveness with their low forward voltage drop. They additionally help shield the cell from reverse charges.
Clamping: Schottky diodes can likewise be used as a cinch inside a transistor circuit, for example, during the 74LS or 74S rationale circuits.

Advantages of Schottky Diode

Schottky diodes are utilized in numerous applications contrasted with different sorts of diodes that don't perform well.

Low turn-on voltage: The turn-on voltage for the diode is somewhere in the range of 0.2 and 0.3 volts. For a silicon diode, it's against 0.6 to 0.7 volts from a regular silicon diode.
Fast recovery time: a fast recovery time means alittle amount of stored charge which can be used for high-speed switching applications.
Low junction capacitance: It possesses a tiny region, after the outcome got from wire point contact of the silicon. Since the capacitance levels are exceptionally little.

Disadvantages of Schottky Diode

There are a few drawbacks to remember about Schottky diodes. A rotate one-sided Schottky diode will encounter a more significant level of invert current than a customary diode.
Schottky diodes likewise have a lower greatest rotate voltage than standard diodes, typically 50V or less. When this worth is surpassed then the Schottky diode will separate and begin to lead a lot of current in invert. Notwithstanding, even before arriving at this switch esteem the Schottky diode will in any case release a limited quantity of current like some other diode.

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