What is the meaning of LC oscillators?

LC oscillator is a type of oscillator where a LC (inductor-capacitor) tank circuit is used for giving the required positive feedback for sustaining the oscillations. The LC tank circuit is also termed as LC resonant circuit or LC tuned circuit.

Likewise, people ask, what is a filter inductor?

A filter circuit is a device to remove the A.C components of the rectified output, but allows the D.C components to reach the load. A filter circuit is in general a combination of inductor (L) and Capacitor (C) called LC filter circuit. A capacitor allows A.C only and inductor allows D.C only to pass.

What is RL filter?

A resistorâ€“inductor circuit (RL circuit), or RL filter or RL network, is an electric circuit composed of resistors and inductors driven by a voltage or current source. A first-order RL circuit is composed of one resistor and one inductor and is the simplest type of RL circuit.

What is the formula for resonant frequency?

Resonance occurs when capacitive and inductive reactances are equal to each other. For a tank circuit with no resistance (R), resonant frequency can be calculated with the following formula: The total impedance of a parallel LC circuit approaches infinity as the power supply frequency approaches resonance.

What are LC circuits used for?

The most common application of tank circuits is tuning radio transmitters and receivers. For example, when we tune a radio to a particular station, the LC circuits are set at resonance for that particular carrier frequency. A parallel resonant circuit can be used as load impedance in output circuits of RF amplifiers.

What are the types of oscillators?

The different types of oscillators are mentioned below and some of them are explained.

• Armstrong Oscillator.
• Crystal Oscillator.
• Hartley oscillator.
• RC Phase Shift Oscillator.
• Colpitts Oscillators.
• Cross-Coupled Oscillator.
• Dynatron Oscillator.
• Meissner Oscillator.
• What is the purpose of an inductor in a circuit?

An inductor is a passive electronic component which is capable of storing electrical energy in the form of magnetic energy. Basically, it uses a conductor that is wound into a coil, and when electricity flows into the coil from the left to the right, this will generate a magnetic field in the clockwise direction.

What is an RF oscillator?

Oscillators convert direct current (DC) from a power supply to an alternating current (AC) signal. They are widely used in many electronic devices. An RF oscillator produces signals in the radio frequency (RF) range of about 100 kHz to 100 GHz.

What is an LCR circuit?

An RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and a capacitor (C), connected in series or in parallel. The circuit forms a harmonic oscillator for current, and resonates in a similar way as an LC circuit.

How is the oscillator different from the amplifier?

Difference between amplifier and oscillators. Amplifier is an electronic circuit which gives output as amplified form of input. Oscillator is an electronic circuit which gives output without application of input. The amplifier does not generate any periodic signal.

What is a resonant frequency?

In physics, resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at specific frequencies. Frequencies at which the response amplitude is a relative maximum are known as the system’s resonant frequencies or resonance frequencies.

What is meant by Colpitts oscillator?

A Colpitts oscillator, invented in 1918 by American engineer Edwin H. Colpitts, is one of a number of designs for LC oscillators, electronic oscillators that use a combination of inductors (L) and capacitors (C) to produce an oscillation at a certain frequency.

What is a phase shift oscillator?

RC Phase Shift Oscillator. It is a linear electronic oscillator circuit that produces a sine wave output. It consists of an inverting amplifier element, such as Op-Amp or transistor with its output fed back to its input through a phase-shift network consisting of capacitors and resistors in a ladder network.

What do you mean by tuned amplifier?

A tuned amplifier is an electronic amplifier which includes bandpass filtering components within the amplifier circuitry. They are widely used in all kinds of wireless applications.

What is a crystal oscillator?

A crystal oscillator 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.

What is an RC oscillator?

RC oscillators are a type of feedback oscillator; they consist of an amplifying device, a transistor, vacuum tube, or op-amp, with some of its output energy fed back into its input through a network of resistors and capacitors, an RC network, to achieve positive feedback, causing it to generate an oscillating

What is meant by RC circuit?

An RC circuit is a circuit with both a resistor (R) and a capacitor (C). RC circuits are freqent element in electronic devices. They also play an important role in the transmission of electrical signals in nerve cells.

What is an oscillator transistor?

An oscillator is an electronic circuit that generates repeated waveforms. The exact waveform generated depends on the type of circuit used to create the oscillator. One of the most commonly used oscillator circuits is made from a pair of transistors that are rigged up to alternately turn on and off.

What is resonant frequency in circuits?

The resonance of a series RLC circuit occurs when the inductive and capacitive reactances are equal in magnitude but cancel each other because they are 180 degrees apart in phase. The sharp minimum in impedance which occurs is useful in tuning applications.

What is a parallel resonant circuit?

Parallel Resonance. The resonance of a parallel RLC circuit is a bit more involved than the series resonance. The resonant frequency can be defined in three different ways, which converge on the same expression as the series resonant frequency if the resistance of the circuit is small.

What is an undamped oscillation?

not damped or dampened; undiminished, as in energy, vigor, etc.: undamped spirits. Physics. (of an oscillation) having constant or increasing amplitude.

What is meant by tuned oscillator?

An active-filter tuned oscillator is an active electronic circuit designed to produce a periodic signal. It consists of a bandpass filter and an active amplifier, such as an OP-AMP or a BJT. The oscillator is commonly tuned to a specific frequency by varying the reactant of the feedback path within the circuit.

What is a tuned collector oscillator?

Tuned collector oscillator. Tuned collector oscillation is a type of transistor LC oscillator where the tuned circuit (tank) consists of a transformer and a capacitor is connected in the collector circuit of the transistor. Tuned collector oscillator is of course the simplest and the basic type of LC oscillators.

What is meant by Clapp oscillator?

The Clapp oscillator is one of several types of LC electronic oscillator constructed from a transistor (or vacuum tube) and a positive feedback network, using the combination of an inductance with a capacitor for frequency determination. It was published by James Kilton Clapp in 1948.

Categories FAQ