- #1
JSBeckton
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I did a lab using an active low pass filter with an op amp and at the end we were instructed to remove the capacitor that was in parallel with the resistor. The result was an extremely high voltage compared to the voltage with the capacitor in the circuit. We are asked to explain what kind of circuit this is w/o the capacitor, and why it behaves this way. I have re-read the entire chapter and am at a loss.
With the capacitor in the circuit, the capacitor acts as a short when the frequency is high--> so the voltage goes to zero. So i can understand why the voltage would not go to zero quickly with the capacitor removd, but I have no idea what you call thei circuit and why it goes so high.
Can anyone better explain this or point me in the right direction?
Thanks
With the capacitor in the circuit, the capacitor acts as a short when the frequency is high--> so the voltage goes to zero. So i can understand why the voltage would not go to zero quickly with the capacitor removd, but I have no idea what you call thei circuit and why it goes so high.
Can anyone better explain this or point me in the right direction?
Thanks