Studied by 1 personTags & Description
Free electrons
________ in the p- type and holes in the n- type are called minority carriers.
bias condition
In forward ________, p- type of the semiconductor diode is connected to the positive terminal and the n- type is connected to the negative terminal of the external voltage.
reverse bias condition
In ________, the p- type of the pn junction is connected to the negative terminal and the n- type is connected to the positive terminal of the external voltage.
x axis
Normally the voltage is taken along the ________ of the graph in volts and current taken along the y- axis in amperes.
bias condition
In zero ________, no external voltage is applied to the semiconductor diode, i.e., the circuit is open.
Junction Breakdown
Characterized by sudden increase of reverse current and a sudden fall of resistance of barrier region.
Minority Carriers
Free electrons in p-type and holes in n-type
Reverse Saturation Current
Denoted by IS, it is a small current of order micro ampere which flows through the circuit when diode is in reverse bias.
Resistance
It is Voltage divided by Current
V-I Characteristics
It is the curve between voltage across the junction and the current through the circuit.
Zero Bias condition
No external voltage is applied to the semiconductor
Forward bias
p-type connected to positive terminal and n-type connected to negative terminal
Forward voltage
0.7 V for Si or Silicon and 0.3 V for Ge or Germanium
Graphical forward condition
the current first increases slowly and the curve in non-linear
Reverse bias
p-type of the pn junction is connected to the negative terminal and the n-type is connected to the positive terminal of the external voltage
Note
Flashcard