In this post I have explained how LC oscillator circuits functions and we will be constructing one of the popular LC based oscillator – Colpitts oscillator. What are Oscillators Electronic oscillators are used in most of our daily used electronic gadgets ranging from digital clock to high end core i7 processor. Oscillators are heart of […]
Oscillator
6 Useful Voltage Controlled Oscillator Circuit Explored
In this post I have explained how to build 6 useful voltage controlled oscillator circuits, using various op amps and integrated circuits. As the name suggests, a voltage controlled oscillator or a VCO circuit is an oscillator circuit whose output frequency can be controlled or varied through an adjustable control voltage input. This means, if […]
Phase Shift Oscillator Circuits – Wien-Bridge, Buffered, Quadrature, Bubba
A phase-shift oscillator is an oscillator circuit designed to generate a sinewave output. It operates with a single active element such as a BJT or an op amp configured in an inverting amplifier mode. The circuit arrangement creates a feedback from the output to the input through using an RC (resistor/capacitor) circuit arranged in a […]
High Stability of Crystals in Oscillator Circuits
The stability of good quality RC oscillators can be expected to be around 0.1%, while normally we can assume the stability of LC oscillators to be up to 0.01%. When a much higher level of stability is required, we have to use a crystal based oscillator circuit. The main reason why crystals are so important […]
Sine Wave Inverter using Bubba Oscillator Circuit
In this post I have explained how to make a simple sine wave inverter using bubba oscillator sine wave generator. The idea ws requested by Mr. Ritwik Naudiyal. Technical Specifications I am a 4th year B.Tech Student Electrical Eng. We are trying to make pure wave sine wave inverter using PWM and bubba oscillator for […]
How Blocking Oscillator Works
A blocking oscillator is one of the simplest form of oscillators which is able to produce self sustaining oscillations through the use of just a few passive and a single active component. The name “blocking” is applied due to fact that the switching of the main device in the form of a BJT is blocked […]