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 …