David Keeler
New Member
I have a low pass RC filter that looks like the attached picture https://tinypic.com/view.php?pic=1z6bo8p&s=8#.VEMc58mURyN
I have to derive the DC gain, the zero frequency, the pole frequency. I don't quite understand how the resistor R2 acts in this circuit.
The other requirements are
I designed the filter using a 1uF capacitor with resistor values of 1.6k ohms and 100 ohms and then I plotted those and found the break frequency to be 93.95Hz
I would like some clarification on how to incorporate the proper design equations for a low pass filter with 2 resistors and one capacitor.
Thank you
I have to derive the DC gain, the zero frequency, the pole frequency. I don't quite understand how the resistor R2 acts in this circuit.
The other requirements are
- the magnitude is 1 for input frequencies below 100Hz
- The magnitude starts to fall at 20dB/decade at 100Hz
- a constant magnitude for frequencies above 10kHz
I designed the filter using a 1uF capacitor with resistor values of 1.6k ohms and 100 ohms and then I plotted those and found the break frequency to be 93.95Hz
I would like some clarification on how to incorporate the proper design equations for a low pass filter with 2 resistors and one capacitor.
Thank you