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Power Systems

Hay’s Bridge: A Method for Measuring Self-Inductance

Hay’s bridge is a type of AC bridge circuit that is used to measure the self-inductance of a coil with a high-quality factor (Q 10). It is a modified version of Maxwell’s bridge, which is suitable for measuring coils with a medium quality factor (1 Q 10). In this article, we will explain the constru

By Electrical4u 03/28, 2024
Power Systems

Voltage Controlled Oscillator | VCO

Voltage controlled oscillator (VCO), from the name itself it is clear that the output instantaneous frequency of the oscillator is controlled by the input voltage . It is a kind of oscillator which can produce output signal frequency over a large range (few Hertz-hundreds of Giga Hertz) depending on

By Electrical4u 03/28, 2024
Power Systems

Crystal Oscillator: Circuit, Frequency & Working Principle

Crystal oscillators operate on the principle of inverse piezoelectric effect in which an alternating voltage applied across the crystal surfaces causes it to vibrate at its natural frequency. It is these vibrations which eventually get converted into oscillations. These oscillators are usually made

By Electrical4u 03/28, 2024
Power Systems

Gunn Diode Oscillator: What is it? (Theory & Working Principle)

What is a Gunn Diode Ocillator? A Gunn Diode Oscillator (also known as a Gunn oscillators or transferred electron device oscillator) are a cheap source of microwave power and comprise of Gunn diode or transferred electron device (TED) as their major component. They perform a similiar funciton as Ref

By Electrical4u 03/28, 2024
Power Systems

Wien Bridge Oscillator: Circuit And Frequency Calculation

What is a Wien Bridge Oscillator? A Wien-Bridge Oscillator is a type of phase-shift oscillator which is based upon a Wien-Bridge network (Figure 1a) comprising of four arms connected in a bridge fashion. Here two arms are purely resistive while the other two arms are a combination of resistors and c

By Electrical4u 03/28, 2024
Power Systems

Colpitts Oscillator: What is it? (Circuit Diagram & How To Calculate Frequency of colpitts oscillator)

What is a Colpitts Oscillator? A Colpitts Oscillator is a type of LC oscillator . Colpitts oscillators were invented by American engineer Edwin H. Colpitts in 1918. Like other LC oscillators, Colpitts oscillators use a combination of inductors (L) and capacitors (C) to produce an oscillation at a ce

By Electrical4u 03/28, 2024
Power Systems

Hartley Oscillator: What is it? (Frequency And Circuit)

What is a Hartley Oscillator? A Hartley Oscillator (or RF oscillator) is a type of harmonic oscillator . The oscillation frequency for a Hartley Oscillator is determined by an LC oscillator (i.e. a circuit consisting of capacitors and inductors ). Hartley oscillators are typically tuned to produce w

By Electrical4u 03/28, 2024
Power Systems

Oscillators: What Are They? (Definition, Types, & Applications)

What is an Oscillator? An oscillator is a circuit which produces a continuous, repeated, alternating waveform without any input. Oscillators basically convert unidirectional current flow from a DC source into an alternating waveform which is of the desired frequency, as decided by its circuit compon

By Electrical4u 03/28, 2024
Power Systems

Signal Generator: What are They? Circuit & Block Diagram

What is a Signal Generator? Signal generators are electronic devices that generate electronic signals and waveform. These electronic signals are either repeating or non-repeating as per the requirements and field of applications. There are different types of signal generators with different level of

By Electrical4u 03/27, 2024
Power Systems

Tuned Collector Oscillator

Before we go into the topic of tuned collector oscillator , we must first understand what is an oscillator is and what it does. An oscillator is an electronic circuit that generates an oscillating or periodic signal, like a sine wave or a square wave. The main purpose of an oscillator is to convert

By Electrical4u 03/27, 2024
Power Systems

RC Phase Shift Oscillator

RC phase-shift oscillators use resistor-capacitor (RC) network (Figure 1) to provide the phase-shift required by the feedback signal. They have excellent frequency stability and can yield a pure sine wave for a wide range of loads. Ideally a simple RC network is expected to have an output which lead

By Electrical4u 03/27, 2024
Power Systems

Clapp Oscillator: Frequency Formula And Circuit Diagram

What is a Clapp Oscillator? A Clapp oscillator (also known as a Gouriet oscillator) is an LC electronic oscillator that uses a particular combination of an inductor and three capacitors to set the oscillator’s frequency (see circuit diagram below). LC oscillators use a transistor (or vacuum tube or

By Electrical4u 03/27, 2024

Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

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Hay’s Bridge: A Method for Measuring Self-Inductance

Voltage Controlled Oscillator | VCO

Crystal Oscillator: Circuit, Frequency & Working Principle

Gunn Diode Oscillator: What is it? (Theory & Working Principle)

Wien Bridge Oscillator: Circuit And Frequency Calculation

Colpitts Oscillator: What is it? (Circuit Diagram & How To Calculate Frequency of colpitts oscillator)

Hartley Oscillator: What is it? (Frequency And Circuit)

Oscillators: What Are They? (Definition, Types, & Applications)

Signal Generator: What are They? Circuit & Block Diagram

Tuned Collector Oscillator

RC Phase Shift Oscillator

Clapp Oscillator: Frequency Formula And Circuit Diagram

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