Types of Diodes and Function of Diodes in Electronic Circuit

Types of Diodes and Function of Diodes in Electronic Circuit

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Types of Diodes and Function of Diodes in Electronic Circuits

The types of diodes are used in many types of electronic circuits, each of which has its own function and role in processing signals, currents and voltages.

Diode is a s...

Types of Diodes and Function of Diodes in Electronic Circuits

The types of diodes are used in many types of electronic circuits, each of which has its own function and role in processing signals, currents and voltages.

Diode is a semiconductor component that is almost always present in all electronic circuits. Whether it's a simple circuit or a complex circuit. However, of the many types of diodes, the diode principle is just a component that can deliver and block / block electric current with 2 working conditions, namely forward bias and reverse bias.

Often we know that the function of the diode is only as a voltage rectifier and things related to the voltage filter on the power supply. However, if you look further, it turns out that there are many diode functions depending on the type of diode used, some of which are lighting, current control, and signal detectors.

types of diodes and function of diodes in electronic circuits

 

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Electronic Components
Types of Diodes and Function of Diodes in Electronic Circuits
Angga 3 years ago 1 Comment

Types of diodes and diode functions in electronic circuits - The types of diodes are used in many types of electronic circuits, each of which has its own function and role in processing signals, currents and voltages.

Diode is a semiconductor component that is almost always present in all electronic circuits. Whether it's a simple circuit or a complex circuit. However, of the many types of diodes, the diode principle is just a component that can deliver and block / inhibit electric current with 2 working conditions, namely forward bias and reverse bias.

Often we know that the function of the diode is only as a voltage rectifier and things related to the voltage filter on the power supply. However, if you look further, it turns out that there are many diode functions depending on the type of diode used, some of which are lighting, current control, and signal detectors.

Diodes themselves have two main ingredients that are used in the manufacturing process. Namely Silicon (Si) and Germanium (Ge). The two semiconductor materials have different voltage drops, namely the silicon diode has a voltage drop of 0.7 volts, while the germanium diodes have a voltage drop of 0.4 volts.

Diodes function by type

Diodes have a function that cannot be replaced by other components in an electronic circuit. That is why we can find almost all electronic circuits with this component. However, at the beginning of its appearance in 1919, discovered by a scientist named William Henry Eccles, diodes functioned as a component to rectify the AC to DC voltage.

However, over time and its development, diodes are widely used as components for producing light, processing audio and radio signals, and producing hot / cold temperatures. The following are the types of diodes and their functions.
1. Rectifier Diodes

A rectifier diode or rectifier) ​​is a diode with the basic construction of the P and N junction (PN Junction). As the name implies, this diode functions as a directional to the AC to DC voltage on a power supply. A rectifier diode is also called a "normal diode".

There are 3 main configurations of a diode when used as an AC voltage waveform rectifier. Namely half wave rectifier, full wave rectifier and full wave rectifier with a bridge system. Of the three configurations the best is with a bridge system, because in addition to using four diodes, the resulting DC current will also be flatter.

2. Diode Bridge (Bridge Diode)

The diode bridge is a diode consisting of four rectifier diodes which are combined into one diode which produces 4 legs, of which two are the input and two as the output. One of the advantages of this diode bridge is that the rectifier circuit becomes more compact because we don't need to arrange the four diodes together, because the bridge diode has become one component.

Diode bridges generally have specifications for currents that are larger than ordinary junction diodes. However, the diode bridge specifications for small currents also actually exist depending on the type and series of these components.
3.LED diode (Light Emitting Diode)

As the name implies, a led diode is a diode that can emit light through the two electrodes that are energized, in this case an LED diode can light up when a DC current is applied forward (forward bias). LED type diodes are one of the most popular types of diodes because they have many functions in electronic circuits related to lighting.

Some of the uses for LED diodes in electronic equipment are LED TV, new generation car and motorcycle lights, indicators for instrumentation equipment, as running displays and so on.

At this time, the use of LED diodes as a lighting tool to replace ordinary lamps is increasing, because LED diodes can emit light that is much brighter with the same power than other types of lamps. Automatically using LED diodes can significantly save electricity usage.
4.Photo diode (Photodiode)

Unlike the LED diode which can emit light, the photo diode is a sensor that can convert light energy into electrical energy through the two electrodes. Photo diodes are widely used as instrumentation tools based on the incoming light input. In addition, photo diodes are also used as a part of optical fiber communication because they have advantages in terms of high speed and wide bandwidth.
5. Zener Diode (Zener Diode)

Zener diode is a diode that has an active role in stabilizing the voltage in the power supply. Unlike other diode installations, in the design of electronic circuits using this zener diode, it is installed in reverse bias conditions or the reverse condition of forward bias.

Zener diodes have a certain breakdown voltage according to their type and series. The most common unit of the zener diode type is that it directly indicates the intended voltage. For example the 5V zener diode series for 5V voltage. However, there are also many series with certain unique codes according to the manufacturer and region in each country of manufacture.

6.Laser diode (Laser Diode)

Laser light in electronic equipment is light produced by a diode. Almost the same as an LED diode that emits light, a laser diode is also a diode that can emit light. It's just that this diode emits laser light, which is a laser beam of high-speed infrared spectrum radiation.

LASER stands for Light Amplification by Stimulated Emission of Radiation. Laser diodes are widely applied in a series of scanners, blueray devices, and laser cutters. Devices that use laser diodes will usually be more expensive if the light intensity and laser power are greater. High power lasers are widely used in light-based cutting devices that are widely used in today's technology.
7.Schottky Diode (Schottky Diode)

Schottky diode is a special diode. It is said to be special because the Schottky diode has a forward bias voltage that is lower than other types of diodes in general. Usually diodes have a forward voltage of 0.6 to 0.7 volts, schottky diodes average forward voltages ranging from 0.2 to 0.4 volts. The main ingredients of the Schottky diode are chromium, platinum and tungsten.

Schottky diodes are widely used in high-speed switching circuits such as switching power supplies and high-frequency radio detector circuits.
8. Peltier Diode (Peltier Diode)

Peltier diode is a diode that functions to convert electrical energy into hot or cold energy through its cross section. Currently Peltier diodes are widely used in cooling devices for computer processors, mini USB refrigerators, and others.
9. Tunnel Diode

Tunnel diodes are high-speed diodes that are widely used in microwave or microwave circuits. Technically, this diode is made with semiconductors that are processed using a quantum mechanical effect called a tunnel.

Some examples of the application of this tunnel diode are in oscilloscopes, televisions, and microwave frequency microwave ovens.
10.Varactor Diode (Varactor Diode)

The varactor diode is a unique type of diode. Because this diode is made with semiconductors but can function like a capacitor. The varactor diode has capacitive properties like a capacitor whose capacity value can vary according to a given control voltage.

Varaktor diodes are widely used in radio and television oscillator circuits. Usually a varaktor diode coupled with a capacitor and a coil to generate frequency.

11. Crystal Diode (Crystal Diode)

The crystal diode is one of the ancestors of the modernized diode. It is called the ancestor of the diode because the early discoveries of this diode were crystal diodes. This diode is made based on the contact between the semiconductor crystal and a certain point which results in a meeting between P and N.The crystal diode is made of germanium which is widely used as a radio receiver (crystal radio), detector diodes, and certain parts of circuits related to radio frequency. high.
12. SCR (Silicon Controlled Rectifier) ​​diode
The SCR diode actually consists of a Schottky diode which is designed in such a way as to produce an SCR diode which has 3 legs with certain characteristics. SCR diodes are widely used as high-speed automatic switch circuits, inverter circuits, TL lamp circuits, and others.
The shape of the SCR diode is physically similar to a transistor because it has 3 legs. But what distinguishes is the name of the foot and the function of the SCR itself. The SCR diode consists of anode, cathode and gate. In short, the way the SCR diode works is that the current from the anode will flow to the cathode if the gate pin is given a trigger.
Those are the types of diodes and the functions of diodes in electronic circuits that are widely used according to the skemaku.com version. In fact, there are many types and types of diodes based on their derivatives for special purposes. However, in general, the most widely used type of diode has been described above.

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