Electronics Engineering
Waves Vibrations and Oscillations

What is a Colpitts oscillator?

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Answered 2008-09-30 00:17:10

A Colpitts oscillator is the electrical dual of a Hartley oscillator. The Hartley oscillator is an LC electronic oscillator that derives its feedback from a tapped coil in parallel with a capacitor. http://en.wikipedia.org/wiki/Colpitts_oscillator http://en.wikipedia.org/wiki/Hartley_oscillator ~MECHASUN~ A Colpitts oscillator is the electrical dual of a Hartley oscillator. The Hartley oscillator is an LC electronic oscillator that derives its feedback from a tapped coil in parallel with a capacitor. http://en.wikipedia.org/wiki/Colpitts_oscillator http://en.wikipedia.org/wiki/Hartley_oscillator ~MECHASUN~

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How is colpitts oscillator better than hartley oscillator?

Colpitts oscllators are preferred because the 'tap' can be set by fixed capacitors, while in a Hartley oscillator the coil is tapped.

What are the advantages of clap oscillator?

clapp oscillator have frequency more stable and accurate than colpitts oscillator.

What is the difference between colpitts and hartley ossilator?

colpitts oscillator has two coils in series and one capacitor in parallel. hartley oscillator has one capacitor and one coil in parallel

What the major components of a colpitts oscillator?

1.CE amplifier circuit 2.LC oscillator circuit

Why is a Clapp oscillator preferred to a Colpitts oscillator?

Because it improves the frequency stability and eliminates the effect of transistor parameters on the operation of the circuit.

What type of transistor used in colpitts oscillator?

whatever works at the desired operating frequency

Are a Colpitts and Hartley oscillators different?

A Colpitts Oscillator is Two Hartley Oscillatorshttp://en.wikipedia.org/wiki/Colpitts_oscillator http://en.wikipedia.org/wiki/Hartley_oscillator ~MECHASUN~

Which part of the hartely oscillator decides frequency of oscillations?

An oscillator has a tuned circuit (inductance+capacitance) to determine the frequency. When the inductor is tapped to give the required phase-shift for oscillation it is a Hartley oscillator. When the capacitance is tapped it is a Colpitts.

What are the advantages of a Hartley oscillator?

advantages over what? Colpitts? Mostly the fact that it does not require a choke. A Hartley is more harmonic-rich than a Colpitts, so the main reason it is used lies in its (relative) ease of construction.

What is the Application of a Colpitts oscillator?

for radio frequnency ... and audio frequency. I have a Colpitts oscillator on a small piece of Veroboard 3/4"x 1/2"mounted on the terminals of a standard telephone earpiece. It uses the earpiece itslef as the inductor. The nominal impedance of the earpiece is about 300 ohms. With capacitors of 1μF and 0.47μF it oscillates at about 2kHz.

How does a Colpitts oscillator work?

A Colpitts oscillator is the electrical dual of a Hartley oscillator. In the Colpitts circuit, two capacitors and one inductor determine the frequency of oscillation. The feedback needed for oscillation is taken from a voltage divider made by the two capacitors, where in the Hartley circuit the feedback is taken from a voltage divider made by two inductors (or a tapped single inductor). (Note: the capacitor can be a variable device by using a varactor). Oscillation frequency The ideal frequency of oscillation for the circuit is given by the equation: where the series combination of C1 and C2 creates the effective capacitance of the LC tank. Real circuits will oscillate at a slightly lower frequency due to junction capacitances of the transistor and possibly other stray capacitances

When was A. Russell Colpitts born?

A. Russell Colpitts was born in 1906.

How do you make wireless power supply?

You could build a Tesla Coil and utilize the strong electric field but your probably talking about resonant magnetic induction. Consider the royer oscillator. I have been unsuccessful with it so far but it works. The colpitts oscillator works well too but don't expect a lot of power.

What are the general applications of colpitts oscillator?

the Colpitts oscillator , named after the inventor of the circuit , is characterised by the use of Two Capacitors in series which are then connected in parallel across the inductor of the resonant circuit for obtaining the required frequency. The junction of the two capacitors is used for the positive feedback used for generating the oscillations. This circuit is used for High frequency oscillators , mainly due to ease of obtaining required ratio of the two capacitor values as per the circuit design. Also the two capacitors in series reduces their total equivalent value , which is not a problem as in HF circuits as the values and size is comparatively low. For information , a corresponding Low frequency circuit is called a Hartley oscillator , also named after its inventor. This uses a tapped inductor & one capacitor for the resonant circuit, since it is more easier to fabricate large value tapped inductors , than to use two bulky ( since the value of capacitors in series is reduced ) capacitors necessary for the equivalent Colpitts oscillator.

What is the types of oscillator?

Phase-shift oscillator Armstrong oscillator Cross-coupled LC oscillator RC oscillator

What has the author Edward Colpitts Robinson written?

Edward Colpitts Robinson has written: 'In an unknown land' -- subject(s): Accessible book, Description and travel

What is the difference between crystal and local oscillator?

A local oscillator can be a crystal oscillator.

What is the difference between a vibration and an oscillator?

A: VIBRATOR IS A MECHANICAL OSCILLATOR oscillator is an electronic device

What is a subcarrier oscillator?

what is sub carrier oscillator?

Applications of wien bridge oscillator?

A Wein Bridge Oscillator is a oscillator which is used for the measurement of Audio Frequency.

Advantages of colpitts oscillator?

Advantages: Good wave purity Fine performer at high frequency Good stability at high frequency Wide operation range 1 to 60 MHz Disadvantages: Poor isolation (Load impedance v.s. frequency) Hard to design by samiur rahman hasib

How do you convert DC to AC in an oscillator?

that is the function of the oscillator

How blocking oscillator are used?

astable blocking oscillator

Wein bridge oscillator applications?

Wein Bridge oscillator application is a type of electronic oscillator. This electronic oscillator produces sine waves and long ranges of frequency.

What is the difference between local oscillator and crystal oscillator?

oscillator frequency is different.crystal working piezo electric effect

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