Hi, I decided to try to make my own boost converter. You know. How hard can it be? Anyway I have gone down a rat hole with trying to understand how to calculate R/C values for loop compensation (in the following, bear in mind that I am not an electrical engineer). One chip I am looking at is the LM3478, which happens to have an application note that explains exactly how to do this (http://www.ti.com/lit/an/snva067c/snva067c.pdf). At least that is what it claims, but I worked through it's example and made a Bode plot using the values it shows for the example zeros and pole. But the plot I get looks nothing like the one in the note.
Basically They calculate a couple of zeros and a pole: wz1 = 133,333 rad/sec wz2 = 420,875 rad/sec wp1 = 833 rad/sec I set up the equations in spreadsheet and get these same values for their example circuit. So I put those into an online bode plotter (e.g. http://www.onmyphd.com/?p=bode.plot). And get a plot that doesn't look like their figure 2. If anyone is feeling particularly kind could you point out what I am missing? Thanks - Paul -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/752bd1fa-ed8d-42df-8ed6-2daf2b75dd2f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
