Different types of oscillator & it's application

Different types of oscillator & it's application

1. Different types of oscillator & it’s application Physics: I

2. Group Members

3. What is Meant by Oscillator? The oscillator works on the principle of the oscillation and it is a mechanical or electronic device. The periodic variation between the two things is based on the changes in the energy. The oscillations are used in the watches, radios, metal detectors and in many other devices use the oscillators. Oscillator

4. Principle of Oscillators The oscillator converts the direct current from the power supply to an alternating current and they are used in many of the electronic devices. The signals used in the oscillators are a sine wave and the square wave. The some of the examples are the signals are broadcasted by the radio and television transmitter, clocks which are used in the computers and in the video games.

5. Types of Oscillators The different types of oscillators are mentioned below and some of them are explained . Armstrong Oscillator Hartley oscillator Colpitts Oscillators Cross-Coupled Oscillator Dynatron Oscillator Meissner Oscillator Optoelectronic Oscillator Phase Shift Oscillator Wine Bridge Oscillator Robinson Oscillator Tri-Tet Oscillator

6. Armstrong Oscillator The Armstrong oscillator is an  LC electronic oscillator  and to generate this oscillator we are using the inductor and the capacitor. The Armstrong oscillator is known as the tickler oscillator because of the individual features of the feedback signal should produce the oscillations are magnetically coupled to the tank indicator. Let us consider the coupling is weak, but the sustain oscillation is sufficient. The following equation shows the oscillation frequency f. The Armstrong oscillator is also called as the Meissner oscillator or tickler oscillator. f = 1 / 2Π√LC

7. Applications of Armstrong Oscillator It is used to generate the sinusoidal output signals with a very high frequency. it is generally used as a local oscillator in receivers. It is used in the radio and mobile communications . Used as a source in signal generators and as a radio-frequency oscillator in the medium- and high-frequency range.

8. Hartley Oscillator The  Hartley oscillator is an electronic oscillator . The frequency of this oscillation is determined by the tuned circuit. The tuned circuit consists of the capacitor and inductor, hence it is an LC oscillator. In 1915 by American engineer Ralph Hartley has invented this oscillator. The features of the Hartley circuit are the tuned circuit consists of a single capacitor in parallel with the two inductors which are in series. From the center connection of the two inductors for oscillation purpose, the feedback signal is taken.

9. Applications This oscillation will produce a desired range of frequencies The Hartley oscillators are used in the radio frequency in a range of the 30Mhz In radio receiver, this oscillator is used and it has a wide range of frequency

10. Colpitts Oscillator The Colpitts Oscillator was by American engineering by Edwin H. Colpitts in the year of 1918. This oscillator is a combination of both inductors and capacitor. The features of the Colpitts Oscillator are the feedback for the active devices and they are taken from the voltage divider and made up of two capacitors which are in series across the inductor.

11. Applications It is used to generate the sinusoidal output signals with a very high frequency Very wide range of frequencies is involved It is used in the radio and mobile communications In commercial purpose, many applications are used

12. Multi-Wave Oscillator The multi-wave oscillator was invented by the French engineer by Georges Lakhovsky in the year of 1920 to 1940. He showed that the nucleus of the cell with the filaments stands, it is very similar to the electronic oscillator and it has the capability of receiving & sending the vibratory information. The multi-wave oscillators are experimental, research for the historical instrument, and there is a no medical claim is made. The multi-wave oscillator unit presents the printed circuit board Golden ratio antenna.

13. Applications The healing action of this oscillation is very bad because of the holistically work The healing process is done by all parts of the body The MWO is used in many countries worldwide by individual This oscillator is applied for the treatment of the cancer

14. Wein Bridge Oscillator The  Wien bridge oscillator  is used to find unknown values of components. In most of the cases this oscillator is used in the audios. The oscillators are designed simply, size is compressed and it has stable in frequency output. Hence the maximum output frequency of the Wien bridge oscillator is 1MHz and this frequency is from the phase shift oscillator. The total  phase shift of the oscillator  is from the 360° or 0°.

15. Applications of Wien Bridge Oscillators It is used to measure the audio frequency. Wien bridge oscillator designs the long range of frequencies It produces sine wave.

16. The end Thank You