All Questions
Tagged with phase-margin dc-dc-converter
5 questions
4
votes
3
answers
166
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Selecting the compensation components, RCOMP and CCOMP, in a DC-DC converter
We know that in that selecting the compensation components, RCOMP and CCOMP, a DC-DC converter like the LM5155 is crucial for setting the control loop bandwidth and ensuring stable operation. These ...
- 1,144
2
votes
0
answers
1k
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Checking calculation of phase and gain margin in LtSpice
I am currently studying DCDC stability analysis in LtSpice. Could you please check my phase margin calculation, am I right? And how about the gain margin calculation? Is it equal to infinity in my ...
0
votes
2
answers
172
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How can gain and phase margin be used to assess stability of SMPCs as for most of the cases (except buck), they always have a Right Hand Zero?
I was going through this Operational Amplifiers, Theory and Practice by James Roberge. On Page 146, it is mentioned that for systems that have negative feedback at low or mid frequencies and that have ...
5
votes
2
answers
3k
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What is the phase margin when there are multiple gain crossover frequencies
I am using LTPowerCAD to help design a buck converter circuit using the LT8645S. I would like to add a second stage LC filter at the output to achieve lower output ripple, but when I add the second ...
- 386
2
votes
2
answers
333
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Phase/Gain margin measurements for current mode boost regulator
I'm looking for where to place a sense resistor in the feedback path of a current mode boost regulator with a layout similar to the one in the picture. Should I place in on the FBL or FBH trace?
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