Where is zener diode used

Diodes come in different sizes, and they typically have a black cylindrical body with two leads coming to the sides Anode and Cathode and a stripe at the Cathode end.

Diodes are like one-way streets. The current can only move from the Cathode end to the Anode end through the diode. This occurs because the diode prevents current from flowing in the opposite direction from the Anode side.

A diode is reverse biased when it acts as an insulator and forward biased when it allows current flow. Diodes are used in circuits to limit voltage and convert AC to DC. Semiconductors like silicon and germanium are employed to get the most out of diodes.

Even though they both transfer power in the same direction, the way they do so is different. Diodes come in various shapes and sizes, each with its own set of applications, such as Zener diodes. Switches, signal modulators, signal mixers, rectifiers, signal limiters, voltage regulators, etc. Zener diodes are one of the diodes used for particular purposes. Except for one key distinction, Zener diodes work just like conventional diodes. If the reverse-breakdown voltage of a Zener diode is 10 V and the current flow is only 5 V, the Zener diode will block the current flow.

What is the point of a diode that conducts in both directions? A Zener diode comes in handy when creating voltage regulators, over-voltage protection circuits, and other circuits. It may be used to navigate partial current flow in a different direction in a circuit.

The construction of Zener diodes also differs from the construction of regular diodes. These diodes are manufactured from severely doped N and P-type semiconductors, varying amounts of doping to achieve varying breakdown voltages. As a result, different voltage levels of Zener diodes have varied voltage capacities.

They are discussed below in detail. The major application of a Zener diode in the electronic circuit is as a Voltage Regulator. It provides a constant voltage to the load from a source whose voltage may vary over a sufficient range. The output voltage fluctuation is absorbed by a series resistor R which is connected in series with the circuit. This maintains a constant voltage V 0 across the load. Let a variable voltage V in be applied across the load R L. When the value of V in is less than Zener voltage V Z to the Zener diode no current flows through it and the same voltage appearing across the load.

The Zener diodes conduct a large current when the input voltage V in is more than the Zener Voltage Vz. As a result, a large amount of current flows through series resistor R which increases the voltage drop across it.

Thus, the input voltage, excess of Vz i. In any case, when converse one-sided voltage is applied to the zener diode, it works in various ways. At the point when opposite one-sided voltage is applied to a Zener Diode, it permits just a modest quantity of spillage current until the voltage is not exactly Zener voltage. At the point when converse one-sided voltage applied to the zener diode comes to Zener voltage, it begins permitting enormous measure of electric flow.

Now, a little expansion in invert voltage will quickly expand the electric flow. On account of this abrupt ascent in electric flow, breakdown happens called zener breakdown. Nonetheless, Zener Diode displays a controlled breakdown that harms the gadget. As a voltage controller. Shields from over voltage. Utilized in cutting circuits. Used to move voltage.

Since, the voltage drops across, the diode stays consistent over a wide scope of voltages.