Phase Shift Oscillator Circuit explanation using op-amp, transistor and FET

RC phase shift oscillator image

Phase shift oscillator is an RC type oscillator whose output is fed back to its input through a phase shift network consisting of resistors and capacitors in a ladder network. In our last tutorials, we explain LC oscillator like Hartley, Colpitts etc, Wien bridge oscillator and crystal oscillator in detail. Here we are going to explain Phase shift oscillator and its implementations in detail. For required positive feedback in RC oscillator, the input is shifted 180o through the amplifier stage and another 180o through the inverting stage which gets combine and gave a phase shift of either 360o or 0o Read More …

Wein bridge Oscillator Circuit and Design using Op amp

wien bridge oscillator

A Wien bridge oscillator is based on bridge circuit basically used to generate sine waves at a large range of frequencies. It is a two stage RC coupled amplifier circuit that has low distortion and good stability at its resonant frequency. In our previous articles, we explain LC oscillators i.e. Hartley and Colpitts oscillator and crystal oscillator in detail. Here we are going to explain Wien Bridge oscillator and its circuit in detail. For the measurement of impedances, it was developed by Max Wien in 1891. It is one of the most demandable Oscillator use in audio or sub audio Read More …

Crystal Oscillator: Circuit and Design [Description]

crystal oscillators image

Crystal oscillator is an electronic oscillator used to create an electrical signal of precise frequency by using the vibrating crystal mechanical resonance made of piezoelectric material. In our previous articles, we explain Hartley oscillators and Colpitts oscillators in brief. Here we are going to explain crystal oscillator and its circuit diagram in brief. There are different types of piezoelectric resonators available in the market but because of a high degree of stability quartz crystal is mostly used. Quartz crystal basically operates up to frequencies ranging from a few tens of Kilohertz to hundreds of megahertz. It is used in many Read More …

Colpitts oscillator: Working and Design using opamp

colpitts oscillator

Colpitts oscillator is another type of oscillator design used to produce an oscillation at a certain frequency. It was invented by the American engineer Edwin H. Colpitts in 1918. In our previous articles, we explain about Oscillator circuit and Hartley oscillator in detail. In this tutorial, we are going to explain Colpitts oscillator circuit, basics in brief. It is designed for the generation of high-frequency sinusoidal oscillations with the radio frequencies typically ranging from 10 KHz to 300 MHz. The main distinguish feature of  Colpitts oscillator is that the it take feedback from the active device from the voltage divider Read More …

Hartley Oscillator: Working and Design using Op amp

hartley oscillator

Hartley oscillator is a LC feedback circuit used to generate high-frequency waveforms or signals into which the oscillation frequency is determined by a tank circuit comprising of two inductors and one capacitor. In our previous article, we explain oscillator circuit and oscillator types in detail. In this article, we are going to explain Hartley oscillator and its circuit in brief. This oscillator was invented by the American engineer Ralph Hartley in 1915 while he was working for the Western Electric company. For producing good quality sine wave signals in the RF range, we preferred this oscillator. Hartley oscillator: As shown in Read More …

MOSFET Transistor: Basics, Operation and Types

mosfet image

Mosfet is voltage controlled field effect transistor has a metal oxide gate electrode which is electrically insulated from the main semiconductor n-channel or p-channel by a very thin layer of insulating material i.e. silicon dioxide known as glass. In our previous articles, we explain in detail about Fet operation and JFET Transistor operation. In this article, we are going to explain Mosfet types, operation, structure etc. Mosfet basics: MOSFETs generally work by electronically varying the width of a channel through which charge carriers i.e. electrons or holes travels because the device conduction is directly proportional to the channel width. The wider Read More …

First stable P type 2D semiconductor material: Tin Oxide

p type 2d material image

Great magic done by the Ashutosh Tiwari and his team, have discovered first stable p-type 2D semiconductor material at the University of Utah that opens the door for much speedier smartphones and computers. The semiconductor made of the element tin and oxygen, tin monoxide ( SnO) is a layer of 2D material only one atom thick, allows electrical charges like electrons to move through it at a faster speed than conventional 3D material such as silicon, germanium etc. [Photo:Dan Hixson/University of Utah College of Engineering] Researchers in the field of engineering materials have discovered that new types of 2D material such Read More …

Field Effect Transistor: Operation and Types

FET

The field effect transistor is a three terminal unipolar semiconductor device used for weak signal amplification. This type of transistor basically uses an electric field to control the shape and hence the electrical conductivity of a channel of one type of charge carrier in a semiconductor material. FET has various similar characteristics to those of their bipolar transistor counterparts i.e. robust, cheap, high efficiency and instant operation and can be used in various electronic circuit applications. In our previous article, we explain the difference between BJT and FET, Semiconductors electronics Theory. Here we are going to explain FET operation and its Read More …

Difference between BJT and FET

FET Vs BJT image

BJT and FET both are made up of different semiconductor materials mainly P type and N type. These transistors are basically used for the designing of oscillators, amplifiers, and switches. In our last articles, we explain in detail how to use a transistor as a switch, amplifier and as an oscillator. Here we are going to explain in detail about FET and BJT basics, working and its difference. Bipolar Junction transistor: Bipolar transistor is a three terminal device formed by joining two individual signal diodes back to back, which will give us two PN junctions connected together in series that Read More …

Transistor as an amplifier: Common emitter amplifier circuit

Transistor amplifier diagram

More topics on transistor: Transistors basics Transistor operation  Transistor characteristics   Transistor configurations  Transistor as a switch Transistor oscillator circuit Darlington Transistor Amplifier is an electronic device which basically boost up the strength of the weak signal and converts it into a strong signal. We have covered transistor configurations and its working in our previous articles. Here we going to put some shadow on how transistor works as an amplifier. Transistor as an Amplifier: We can use a transistor as an amplifier by raising the strength of the weak signal. With the help of suitable diagram, we explain you how transistor circuit acts Read More …