Draw block diagram of function generator and state the function of each block.

Draw block diagram of function generator and state the function of each block. 
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Answer :

Block Diagram of Function Generator:

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OR

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Working of Function Generator : • This instrument can deliver sine, triangular & square waves with frequency range of 0.01 Hz to 100 kHz. • The frequency control network is governed by a frequency dial on the front panel of the instrument • The frequency control voltage regulates two current sources. • The upper current source supplies a constant current to the integrator whose output voltage increases with time. • The voltage comparator multi-vibrator changes state at a predetermined level on the positive slope of the integrator’s output voltage. • The lower current source supplies a reverse current to the integrator so that its output voltage reaches a predetermined level on the negative slope of the integrator’s output voltage. • The lower current source supplies a reverse current to the integrator so that its output voltage reaches a predetermined level on the negative slope of the integrator’s output voltage. 


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