Types of Diodes.

Types of Diodes.

1. DETECTOR DIODE

   • RECTIFIER DIODE
     • Rectifier diodes are those semiconductor devices that only conduct in forward polarization and in reverse polarization do not conduct.
     • ZENER DIODE
       • These allow the flow of current inversely and because of their ability to maintain a constant voltage at their terminals when reverse biased, they are used as control devices.
       • LED DIODE
         • The LED diode converts electrical energy into light energy. Its manufacturing process consists of an electroluminescence process in which holes and electrons recombine to produce energy in the form of light when it is directly polarized.
         • CONSTANT CURRENT DIODE
           • The constant current diode or also known as current regulating diode or current limiting diode consists of, it is really a JFET. This type of diodes allows a current through them to reach a suitable value and thus stabilize at a specific value.
   • Detector diodes, also known as low signal or point contact diodes, are specially designed to operate on very high frequency and low current devices.

2. SCHOTTKY DIODE

   • Schottky diodes have a silicon composition and are characterized by a very small voltage drop (approximately 0.25V or less) and by having a very fast response.
   • SHOCKLEY DIODE
     • The shockley diode also known as PNP diode, is characterized by having two stable states: Blocking or high impedance. Conduction or low impedance
     • STEP RECOVERY DIODE (SRD)
       • The step recovery diode has the characteristic of storing the charge of the positive pulse and uses the negative pulse of the sinusoidal signals.
       • TUNNEL DIODE
         • They are used as a high-speed switch (nano seconds), this is due to having an extremely thin depletion zone and having a negative resistance region in its curve where the current decreases as the voltage increases.
         • VARACTOR DIODE
           • It acts like a voltage controlled variable capacitor and its way of operating is inversely. These diodes are famous for their ability to change the ranges of capacitance within the circuit in the presence of a constant voltage.

3. LASER DIODE

   • The laser diode are LEDs that emit a monochromatic light, generally red or infrared, which has the characteristics of being strongly concentrated, focused, coherent and powerful.
   • TRANSIENT VOLTAGE SUPPRESSION DIODE (TVS)
     • Is an electrical device designed to divert or divert voltage spikes away from a circuit to protect it, they are also useful to protect circuits from electrostatic discharge (ESD).
   • GOLD DOPED DIODES
     • By doping with the chemical element gold and gold being a great conductor, they allow gold doped diodes to respond much faster.
   • OLED DIODE
     • It is a diode that is based on an electroluminescent layer formed by a film of organic components that react to a certain electrical stimulation, generating and emitting light by themselves.
     • GUNN DIODE
       • When the voltage in the circuit increases the current also increases, after a certain voltage level the current will decrease exponentially.
   • PHOTODIOD
     • It is a device that is sensitive to visible light and even infrared, therefore it is a light-sensitive diode.
     • SILICON CONTROLLED RECTIFIER
       • It consists of three terminals: anode, cathode, and a gate. Similar to the Shockley diode, it is used for control purposes when small voltages are applied to the circuit.