) build a low-frequency square wave generator using a basic comparator having a frequency of 1kHz and a 30% duty cycle. Explain the principle of operation and the type of feedback of the op-amp. What is the advantage of this circuit? H) Build a phase-shift oscillator using,
G) build a low-frequency square wave generator using a basic comparator having a frequency of 1kHz and a 30% duty cycle. Explain the principle of operation and the type of feedback of the op-amp. What is the advantage of this circuit?
H) Build a phase-shift oscillator using, C=1µF and +10V power supply to produce a 10 kHz sinusoidal waveform. Generate your plots and compare output results. Highlight any discrepancies and discuss what happens if we want to increase the frequency to 100 kHz.
I) Build a Colpitts oscillator producing 100kHz Discuss its advantage over RC oscillators. How can you modify the circuit to include a crystal in your circuit? What is a typical application of such an oscillator? Discuss the advantages and disadvantages of crystal oscillators.
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