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Basic knowledge of diode

Diode Fundamentals

What is diode and its characteristics? A diode is a two-terminal electronic component that conducts current prim

Diode Types

What are the different types of diodes? There are a lot of different diode types, and semiconductor diodes are the most

Diode Applications

What are the uses of diodes? Diodes have a huge range of uses. For example, a diode always acts as a one-way switch for

Diode Circuit Design

How does a diode work in a circuit? The most common kind of diode in modern circuit design is the semiconductor diode.

Welcome to the Diodes!

Diode Fundamentals

What is diode and its characteristics?

A diode is a two-terminal electronic component that conducts current primarily in one direction (so long as it is operated within a specified voltage level). In other words, a diode is effectively like a valve for an electrical circuit. 

They all have unique characteristics which define how they actually operate, such as current-voltage relationship (includes forward bias, reverse bias and breakdown), forward voltage, breakdown voltage and so on.

An ideal diode will have zero resistance in one direction, and infinite resistance in the reverse direction. Although in the real world, diode can not achieve zero or infinite resistance. Instead, a diode will have negligible resistance in one direction (to allow current flow), and a very high resistance in the reverse direction (to prevent current flow). Learn more about diode, checking this page further.

 

Diode Types

What are the different types of diodes?

There are a lot of different diode types, and semiconductor diodes are the most common type of diode. The most common used are normal diodes (such as standard signal diodes), power diodes, light-emitting diodes (LEDs), Schottky diodes, Zener diodes, photodiodes and so on.

 

Diode is mainly divided into two categories:

Vacuum tube diodes
↪️The first vacuum tube called vacuum diode. It is also called Fleming valve or thermionic tube. Vacuum diode is an electronic device that allows the electric current in one direction (cathode to anode) and blocks the electric current in another direction (anode to cathode).

Semiconductor diodes
↪️A semiconductor diode is a diode made of semiconductor material, most often silicon. It's kind of like a door for electricity to move through, but it only opens one way.

 

Diode Applications

What are the uses of diodes?

Diodes have a huge range of uses. For example, a diode always acts as a one-way switch for current, which allows current to flow in one direction but not the other. It is usual to find a diode of some type in just about every circuit. They could be featured in anything from a small-signal digital logic to a high voltage power conversion circuit. This is achieved through a built-in electric field.

The application areas of diodes include communication systems as limiters, clippers, gates; computer systems as logic gates, clampers; power supply systems as rectifiers and inverters; television systems as phase detectors, limiters, clampers; radar circuits as gain control circuits, parameter amplifiers, etc.

↪️Diodes are used in clamping circuits for DC restoration.
↪️Diodes are used in clipping circuits for wave shaping.
↪️Diodes are used in voltage multipliers.
↪️Diodes are used as switch in digital logic circuits used in computers.

Diode Circuit Design

How does a diode work in a circuit?

The most common kind of diode in modern circuit design is the semiconductor diode. The process of circuit design can cover systems ranging from complex electronic systems all the way down to the individual diodes within an integrated circuit. Check here to aquire more diode uses in circuits.

In electronic circuit, ideally, diodes will block any and all current flowing the reverse direction, or just act like a short-circuit if current flow is forward. Unfortunately, actual diode behavior isn't quite ideal. Diodes do consume some amount of power when conducting forward current, and they won't block out all reverse current. Real-world diodes are a bit more complicated. Hold the important characteristics of a diode in circuit, volt-ampere (V-I) characteristics, the forward voltage drop. ... reverse voltage drop that will reverse current flow and in most cases destroy the diode.

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