Rc Circuit Bode Plot. 14 s in p r c 1 z 1 d l p r c 1 z 2 2 2 2 2 1 21 p p m d in out g r v v z example of a circuit with two poles. These straight line approximations are illustrated in figure 2 b.
We looked at the impedance equivalent circuit of this and then did a voltage divider law of this impedance over the sum of the two. A bode plot consists of two graphs one being the magnitude of the response the ratio of the output amplitude to the input amplitude versus frequency and the other being the phase of the response versus frequency. In our previous lessons we ve found this to be our transfer function.
This tool calculates the crossover frequency for a rc low pass filter.
Executing the following commands at the matlab command line will generate the theoretical bode plot for our rc circuit with. R 2 num2str r2 the resulting plot is. Now let s start with the bode plot of the rc circuit where we take the output across the capacitor. Rc low pass filter frequency and bode plot calculator.