R-C Phase Shift Oscillator using Op-Amp

-
R-C Phase Shift Oscillator using Op-Amp

R-C Phase Shift Oscillator Using Op-Amp

  • R-C phase shift oscillator using op-amp uses in inverting amplifier mode. Thus it introduce the phase shift of 180* between input and output
  • The feedback network consists of 3 RC sections each producing 60* phase shift

    • RC Phase Shift oscillator using op-amp

  • The output of amplifer is given to feedback network.
  • The output of feedback network drives the amplifier and 180* due to 3 RC section, thus 360*.
  • This satisfies the required condition for positive feedback and circuit works as an oscillator.
  • The gain of the op-amp |A|=> to satisfy the magnitude condition hence gain of the feedback network is β=1/29 so that |Aβ|=1
  • Thus Barkhausen criterion is satisfied and the circuit works as an oscillator.
  • The frequency of oscillations is given by,
    • f = 1/2π∠6 RC Hz
Location: India

Comments

Post a Comment

Popular posts from this blog

Miller Crystal Oscillator

-
Image
Miller Crystal Oscillator Miller Crystal Oscillator Similar to modifications in Colpitt's oscillator, the Hartley oscillator circuit can be modified, to get Miller crystal Oscillator In Hartley oscillator circuit, two inductors and one capacitor is required in the tank circuit. One inductor is replaced by the crystal which acts as an inductor for the frequencies slightly greater then the series resonant frequency. The tuned circuit of L1 and C is offtuned to behave as an inductor i.e. L1. The crystal behaves as other inductance L2 between base and ground. the Internal capacitance of the transistor acts as a capacitor required to fullfill the elements of the tank circuit The crystal decides the operating frequency of the oscillator.
Read more

Electronic oscillator division types and use

-
Image
Electronic oscillator division types and use Electronic oscillator division types and use Introduction to oscillator An oscillator is a amplifier and it is a close loop circuit or network. It uses the Positive feedback. It is not require the externel signel and generate the a desired frequency A oscillatpr acts like generator, It oscillates the constant amplitude and frequency. Oscillator can generate the frequency upto gigahertz. Classification of the Oscillators Oscillators are classified based on the type of waveforms generate from the oscillator, range, frequency, parameters used. Based on Output waveforms. Based on circuit components. Range of operating frequency. Based on feedback uses or not uses Types of oscillatprs LC Oscillator Har...
Read more

Distence Measurment using Arduion

-
Image
Distence measurment using arduino How to make distence measurment using arduino Distence measurment using the arduino is easy just need to fallowing componets and connect the shown in the connection diagram Arduino Ultrasonic sensore 1 10k Potentiometer Bread Board Connecting wire LCD display Breaboard First take the breadboard and conect the wires as shown in the diagram connections connect the red and black wire for +5Vcc amd ground in arduino connect the display vss to ground and vdd to ground connecth the display V0 to center of the potentiometer display RS pin to arduino pin 2 Disply RW pin to Arduino ground Display E pin to Arduino pin 3 Display pin D4 to Arduino pin 4 Display pin D5 to Arduino pin 5 Display pin D6 to Arduino pin 6 Display pin D7 to Arduino pin 7 Displa...
Read more