The above image is a characteristics of the 1N4001 Diode. PN Junction Diode Characteristics Output- Reverse BiasĪs you can see from the above image there is no current flowing through the diode. Therefore there is no current flowing through the diode. Therefore there is no junction crossing and the depletion layer near the junction tends to increase. Similarly, the P-Type photons are attracted towards the Negative terminal of the voltage source away from the junction. As the reverse input voltage increases the electrons from N-Type are attracted towards positive terminal away from the junction. Therefore the negative terminal is connected to the anode of the diode and the positive terminal of the voltage source is connected to the cathode. In reverse bias- Note the battery connection. PN Junction Diode Characteristics- Reverse Bias PN Junction Diode Charcacteristics of Forward Bias In our circuit we are using diode 1N4001G. Check out the diode specifications in the datasheets before using it.The input voltage must be limited to the maximum value. As we increase more input voltage more current will flow. As the input voltage rises more than 0.7 the N type electrons are attracted towards the P -type material and the photons from P-Type are attracted towards the N-Type material.There is a depletion region present between the P and N type materials which disallows the flow of electrons.When the input voltage to the diode is less than around 0.7 V no current flows in the diode.The above configuration is a foraward bias as the positive terminal of the DC Source is connected to the anode and negative terminal is connected to the cathode. The above circuit can be simulated using Multisim Software.Ī voltage source and resistor and diode are connected in series. PN Junction Diode Characteristics Circuit Diagram- Forward Bias We will learn and study the characteristics of the both the bias techniquesĬircuit Diagram of PN Junction Diode Characteristics:.In Reverse Bias, the positive terminal of the voltage source is connected to the cathode of the diode and the negative terminal of the source is connected to the anode of the diode.It means the positive terminal is connected to the anode of the diode and the negative terminal of the battery is connected to the cathode of the anode. In Forward Bias the voltage source is connected in forward bias.They are widely used in rectifier circuits. The majorly used diodes are 1N4007 series. Here, the characteristics is the graph where the voltage is plotted on the X-Axis and the Current on the Y-Axis. V-I Characteristics stands for voltage and current. PN Junction diode characteristics provide us the information about the habitual working of the diode. It is used majorly in rectifier and voltage regulator circuits. As the name stands PN junction Diode is made up of P type and N Type semiconductor material. PN Junction diode is a semiconductor devices which conducts from only one side.
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