The measurement of points A, B, and C in Figure 2 determine the gain and phase of the control loop at the injection frequency (f). Different injection frequencies yield different gain and phase. For simplicity, and to see how this works, one can set the injection frequency and mea...
F: Frequency of the AC source VAC: Amplitude of the AC sourceC_Comp Extraction Using LTspiceThe buffer capacitance could be extracted by supplying an AC voltage with a frequency sweep as shown in Figure 15. Since AC voltage is supplied, there will be real and imagin...
Since, I never made such a measurement, I would like to ask how I should do such a test. I am somewhat worried as high frequency self oscillation even if it is intermittent damages tweeters. I would like to clarify that the self oscillation is smaller than the ...
In a previous article, we discussed some examples ofmodeling noise in LTspice. Now, let's discuss how to build noise sources in the frequency domain using noise analysis and in the time domain using transient analysis. We'll do this by simulating circuit noise in LTspice. This article ...
So amplitude is just a measure of the DC power supply level. The next parameter we can adjust is the frequency of the sinusodal waveforms. There will be a series of sine waves created by this circuit and we can adjust what frequency these signals will have by the selection of the ind...
Measure the phase shift versus applied frequency on a scope and plot that using the same x axis (frequency) as above.Really, if you examine a Bode it should become obvious on how to do it. really? sound interesting and simple. yes i read that bode plot is just gain vs freq and ...
entirely in DC, and is intended for use with DC supplies like batteries or power supplies, speed isn't really of a concern to me. Theoretically a slow enough opamp would make it impossible for any oscillation of this frequency to even exist in the circuit. Am I correct in thinking that?
Figure 12. The LT8330 used in a 12 V to 48 V converter for 150 mA load current. From the LTspice simulation we can plot and measure a number of parameters. Those that can help you choose an IC are described in Figure 13. Figure 13. Switch node plot on the graphical viewer...
F: Frequency of the AC source VAC: Amplitude of the AC sourceC_Comp Extraction Using LTspiceThe buffer capacitance could be extracted by supplying an AC voltage with a frequency sweep as shown in Figure 15. Since AC voltage is supplied, there will be real and imaginary part...