Dear members,
I am trying to answer coursework given to do at home regarding a sinusoidal oscillator as shown in the photo attached(fig1). I did some find out on books and the internet and I found nothing similar, unfortunately. I deduced at the output of the opamp has an RC bandpass filter and is also connected to the positive feedback of the opamp.
My first difficulty, is it need any modifications of this circuit(fig1) to work?
Second, I did some derivation(fig2,3,4) to find the cutoff frequency and also the loop gain, but I am not 100% sure of my work, could someone correct or point out the mistakes did?
Please could someone guide me the way forward please.
Thanks for your kind attention,
Saviour
I am trying to answer coursework given to do at home regarding a sinusoidal oscillator as shown in the photo attached(fig1). I did some find out on books and the internet and I found nothing similar, unfortunately. I deduced at the output of the opamp has an RC bandpass filter and is also connected to the positive feedback of the opamp.
My first difficulty, is it need any modifications of this circuit(fig1) to work?
Second, I did some derivation(fig2,3,4) to find the cutoff frequency and also the loop gain, but I am not 100% sure of my work, could someone correct or point out the mistakes did?
Please could someone guide me the way forward please.
Thanks for your kind attention,
Saviour
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