- #1
gotilio
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gotilio said:thanks very much!
Is it possible that C*R2 = 1/1000 en not C*R1 = 1/1000 ?
gotilio said:My equation for A was wrong ,the nominator should be 1+jWCR2,
so in this case C*R2=1/1000,right?
by the way the plot is in hertz
If I solve it like this my values are :111 ohm for R1 and 9 microF for C
gotilio said:is the cut-off frequency equal to the frequency of the pole?
To determine r and c values using a bode plot, you will need to plot the frequency response of the system on a logarithmic scale. Then, find the point where the magnitude crosses the 0 dB line and the corresponding frequency. From there, use the formula r = 1/2πfc and c = 1/2πrfc to calculate the values.
The r and c values determine the bandwidth and stability of a system. By using a bode plot to determine these values, you can analyze the performance and stability of the system at different frequencies and make adjustments as needed.
Yes, there are a few limitations to consider. Bode plots are typically only accurate for linear systems, and they may not accurately represent systems with complex dynamics or non-linear behavior. Additionally, the accuracy of the r and c values may be affected by noise or measurement errors.
The magnitude and phase plots on the bode plot can give you an idea of the frequency response of the system. The magnitude plot shows the gain of the system at different frequencies, while the phase plot shows the phase shift. By analyzing these plots, you can determine the frequency at which the system reaches its maximum gain and use this to calculate r and c values.
Yes, there are other methods for determining r and c values, such as using mathematical equations or performing experiments. However, the bode plot method is often preferred because it provides a visual representation of the system's frequency response and allows for quick and accurate calculations.