While attempting to accurately determine the corner frequency from the gain plot can be difficult, the 45&#176 phase-shift frequency is much easier to identify. The curves in Figure 2 are calculated ...

It should be noted that Aol and β are functions of frequency. The results of this relationship are seen in the Bode plot as shown in Figure 2 (Note: Aol is shown in blue, 1/β is shown in orange).

Fig. 1. Bode plot of a DC/DC converter. The phase margin of this converter is indicated as a very respectable 78 degrees and the gain margin, indicates a less than stellar, but acceptable 6.7 dB.

Electrical engineers will recognize the Bode plot as a plot of the frequency response of a system. It displays the frequency on the x-axis and the phase (in degrees) or magnitude (in dB) on the y-a… ...

First-Order RC Circuit as Low-Pass Filter View File; Filtering with RC Circuits ... Vary the R and C values of the circuit, view the Bode plot of the filter response, and the effect of the filter on a ...