Hello, friends, I hope you all are doing great. In today’s tutorial, we will discuss the Difference Between Forward & Reverse Biasing. The basic comparasion between forward and reverse biasing is that in forward biasing configuration positive end of the battery is attached with the P region of semiconductor substance and N region with the negative end of battery. While in reverse biased condition the P region is attached with the negative end of battery and N region with the positive end of the battery. Biasing is a technique through which a power supply is provided to the semiconductor instruments.

The applied potential has 2 categories forward and reverses bias. In forward biased condition the potential barrier of diode decreases and allows the flow of current. But in the reverse-biased state due to potential difference potential barrier increases due to that charges do not crosses the junction and current not flows. In reverse biasing there is a huge amount of resistance is offered that not allow to flow current. In today’s post, we will have a detailed look at both forward and reverse biasing with the detailed and compare them to find their differences. So let’s get started with Difference Between Forward & Reverse Biasing.

Difference Between Forward & Reverse Biasing

Forward Biasing

• In forward biasing mode exterior potential is given at terminals of PN junction diode for decreasing the area of potential that permits movement of current.

• In this mode configuration of connection is the negative end of the battery is attached with the negative or N side of the device and the positive end of power supply with the P region of the device.
• The area of the depletion region is less than the reverse biased condition.
• The value of resistance offered in the configuration is less.

• In forward biasing the area of potential barrier decreases.
• The value of voltage given is larger at anode than the cathode.
• In forwarding biased conditions, current flows through the device.
• The value of current depends on the applied voltage.
• In forward biased state device operate like a conductor.

Reverse Biasing

• The exterior voltage given to the Pn junction of diode for increasing the area of the potential barrier and stops the movement of current is known as reverse biased.
• In reverse biased mode the negative end of the battery is attached with positive or P end of the device and the positive point of battery with the anode or N region of the device.
• In this configuration area of potential barrier increases.
• Current does not flow in reverse biased mode due to high resistance.
• The magnitude of current is zero.
• In this mode voltage at cathode is larger than the anode.

• For reverse biased condition small value of reverse current flows.
• The area of the depletion region is larger than the forward biased condition.
• In this configuration for movement of current high resistance is offered.
• The device operates like an insulator in the reverse-biased state.

 

That is detailed post about difference between forward biasing and reverse biasing if you have any further query ask in comments. Thanks for reading. have a good day.