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