☑ Draw The Vi Characteristics Of Diode

The vi characteristics of a zener diode is shown in the below figure. The horizontal line in the below figure represents the amount of voltage applied across the p n junction diode whereas the vertical line represents the amount of current flows in the p n junction diode.

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The breakdown voltage of a zener diode can be set by controlling the doping level.

Draw the vi characteristics of diode. Draw diode characteristics a diode is a specialized electronic component with two electrodes called the anode and the cathode. A pn junction diode is one of the simplest semiconductor devices around and which has the characteristic of passing current in only one direction only. This current is called the forward current.

Effect of forward bias on v i characteristics of pn junction diode. The v i characteristics or voltage current characteristics of the p n junction diode is shown in the below figure. But for simplicity both types are called zener diodes.

Voltage vs current characteristics of pn junction simulation done with the help of national instruments software like ni multisim is used. An ideal diode also acts like a switch. This post includes explanation of operation of zener diode and v i characteristics of zener diode.

For zener diodes silicon is preferred to ge because of its high temperature and current capability. Volt ampere v i characteristics of a pn junction or semiconductor diode is the curve between voltage across the junction and the current through the circuit. Most diodes are made with semiconductor materials such as silicon germanium or selenium.

The v i characteristics of the ideal diode are shown in the figure below. When the forward bias voltage is increased to a value where the voltage across the diode reaches approximately 07 v barrier potential. However unlike a resistor a diode does not behave linearly with respect to the applied voltage as the diode has an exponential current voltage i v relationship and therefore we can not described its operation by simply using an equation such as ohms law.

When forward biased voltage is applied to the zener diode it works like a normal diode. Normally the voltage is taken along the x axis and current along y axis. When the diode is forward biased it acts like a closed switch as shown in the figure below.

The current in this biasing is low till breakdown is reached and hence the diode looks like an open circuit. When a forward bias voltage is applied across a diode there is current. Vi characteristics of pn junction diode in reverse bias in this type of bias the characteristic curve of the diode is shown in the fourth quadrant of the below figure.

However when reverse biased voltage is applied to the zener diode it works in different manner.