PN Junction Questions & Answers
July 11, 2016
1. Explain what is Fermi level? The maximum energy that an electron in a metal has at the absolute zero...
Read more
PIN Diode Working Principle
July 10, 2016
The pin diode consists of heavily doped p and n regions separated by an intrinsic (i) region, as shown in Figure...
Read more
Tunnel Diode Working Principle
July 9, 2016
A tunnel diode or Esaki diode is a type of semiconductor that is capable of very fast operation, well into...
Read more
Difference between Schottky Diode and PN junction Diode
July 9, 2016
Silicon diode: Use of P-doped silicon and N-doped silicon to make a P-N junction that causes the blocking effect Schokky...
Read more
Laser Diode Working Principle
July 9, 2016
A laser diode, or LD also known as injection laser diode or ILD, is an electrically pumped semiconductor laser in...
Read more
Photodiode as Variable Resistance Device
July 9, 2016
The photodiode is a device that operates in reverse bias, as shown in Figure. where Ia is the reverse light...
Read more
Varactor Diode Operation
July 9, 2016
The junction capacitance of diodes varies with the amount of reverse bias. Varactor diodes are specially designed to take advantage of...
Read more
Zener Diode Limiter
July 9, 2016
Zener diodes can be used in ac applications to limit voltage swings to desired levels. Below Figures shows three basic ways...
Read more
Zener Diode Voltage Regulator Operation
July 9, 2016
The zener diode can be used as a type of voltage regulator for providing stable reference voltages. In this section, you...
Read more
Zener Diode Breakdown Characteristics
July 9, 2016
The symbol for a zener diode is shown in Below Figure. Instead of a straight line representing the cathode, the zener...
Read more
