Electronics Articles Archive
Difference between N-channel JFET and P-channel JFET
Following are the N-channel JFET(junction field effect transistor) and P-channel JFET . N-channel JFET P-channel JFET The current conduction takes place due to electrons. The current conduction takes place due to holes. Mobility of electrons large. Mobility of electrons
Classification of amplifiers
The amplifiers are may be classified as under, According to input signal Small signal amplifier. Large signal amplifier. According to coupling methods Inductance coupled (LC) amplifier. Resistance capacitance (RC) coupled amplifier. Transformer coupled (LC) coupled amplifier. Direct
Avalanche photodiode
Avalanche photodiode is basically a PN junction diode which operates in the avalanche breakdown region. Its structure is similar to the PIN photodiode. It is a highly sensitive semiconductor electronic device that utilizes the photo electric effect
Potentiometer
What is a potentiometer? The potentiometers are variable linear resistors that deliver an output voltage representing some function of an applied voltage and shaft position. The smaller variable resistors commonly used in electronic circuits are called as
How amplifier is work?
Amplifier is an electronic circuit which produces a large electrical output of similar characteristic that of the input parameters. Amplifier is an electronic device which increases the power of a signal. Amplifier takes the power from a
Difference between PN junction diode and photo diode
Following are the difference between PN junction diode and Photo diode: PN junction diode Photo diode The PN junction diode is operated in forward biased mode. The photo diode is operated in reverse biased mode. It is
How does crystal oscillator work?
A crystal oscillator is basically a tuned oscillator. It uses a piezoelectric crystal as a resonant tank circuits. It is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency. The
Application of field effect transistor (FET)
There are some application of field effect transistor (FET) are given below, Field effects transistors (FETs) are used in mixer circuits to control low inter modulation distortions. FETs are used in low frequency amplifiers due to its
How infra red light emitting diode (IR LED) works?
The infra red light emitting diode (IR LED) is a gallium arsenide PN junction diode which emits a beam of radiant flux when forward biased. The infra red LED is also known as IR transmitter. It is
Applications of infra-red light emitting diode (IR LED)
The important applications of infra-red light emitting diode (IR LED) are as given below, The IR LED is used as a light source in optical systems. The IR LED is used in burglar alarm systems. It is