Logic Gates
Logic gates
A gate is a digital circuit that follows curtain logical relationship between the input and output voltages. Therefore, they are generally known as...
Analog signal and Digital signals
Digital Electronics involves circuits and systems in which there are only two possible states which are represented by voltage levels. Other circuit conditions such...
Transistor as an Amplifier
Transistor as an Amplifier
Amplification is the process of linearly increasing the amplitude of an electrical signal. A transistor can act as an amplifier directly...
Transistor Action or Working of Transistor
A brief description of the three segments of a transistor is given below:
Emitter: This is the segment on one side...
Junction Transistor
Junction transistor
A junction transistor is a solid-state device. It consists of silicon or germanium crystal containing two PN junctions. The two PN junctions are...
Zener Diode
Zener diode
Zener diode is a reverse biased heavily doped semiconductor (silicon or germanium) PN junction diode, which is operated exclusively in the breakdown region.
The...
Photodiode
Photodiode
A photodiode is again a special purpose p-n junction diode fabricated with a transparent window to allow light to fall...
Solar Cell
Solar cell
A solar cell is basically a p-n junction which generates emf when solar radiation falls on the p-n junction.
It works on the same...
Light Emitting Diode (LED)
Light Emitting Diode (LED)
A light emitting diode (LED) is a forward biased PN junction diode, which emits visible light when energized.
When a junction diode...
PN Junction Diode as a rectifier
Junction Diode as a rectifier
The process in which alternating voltage or alternating current is converted into a direct voltage or direct current is known...