What is forward bias in a diode
Here, the applied voltage is opposite to the junction barrier potential.In a standard diode, forward biasing occurs when the voltage across a diode permits the natural flow of current, whereas reverse biasing denotes a voltage across the diode in the opposite direction.Under the forward biased condition, the opposition offered by a diode to the forward current is known as forward resistance.Forward and reverse bias characteristics of silicon diode:A junction diode acts as a closed switch when it is forward biased.
In forward bias diode operation, the diode act like a closed switch.8/22/2005 the junction diode forward bias equation.doc 4/6 jim stiles the univ.The voltage with reverse biasing doesn't cause any appreciable current to flow.The forward bias is the voltage drop across the diode if the voltage at the anode is more positive than the voltage at the cathode (if you connect + to the anode).In forward bias condition, the current is allowed to pass through the pn junction.
A diode is forward biased when its voltage is anywhere on the +voltage side of the origin.When a diode is connected in forward biased, current flows through the diode and it conducts.