DC-DC Converter (Switching Converter)

AI Thread Summary
The discussion centers on the classification of a DC-DC converter, specifically questioning whether it should be labeled a buck-boost converter based on the synchronization of its switches. One participant suggests that the synchronization method used in the converter may indicate a different topology rather than a traditional buck-boost configuration. They emphasize that in typical buck-boost converters, switches are not synchronized to close and open simultaneously. The conversation highlights the need for verification of the proposed solution and understanding of the converter's operation. Overall, the participants are seeking clarity on the converter's topology based on their coursework knowledge.
jegues
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Homework Statement



See figure below.

th_506034757_09P3Q_122_246lo.JPG


Homework Equations


The Attempt at a Solution



See the 3 other figures attached for my attempt at the solution. (Parts (a), (b) & (c))

Does anyone spot any mistakes in my work?
 

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I didn't go over your work in detail, but I see where you are naming this converter as a buck-boost converter. While it could be used as such, I'm thinking that the way the switches are synchronized would simplify it to a different topology (I could be wrong, though). Do you see what I'm referring to...? The switches are not normally synched to be closed at the same time and open at the same time in a buck-boost regulator, I believe...

http://ecee.colorado.edu/copec/book/slides/Ch6slides.pdf

.
 
berkeman said:
I didn't go over your work in detail, but I see where you are naming this converter as a buck-boost converter. While it could be used as such, I'm thinking that the way the switches are synchronized would simplify it to a different topology (I could be wrong, though). Do you see what I'm referring to...? The switches are not normally synched to be closed at the same time and open at the same time in a buck-boost regulator, I believe...

http://ecee.colorado.edu/copec/book/slides/Ch6slides.pdf

.

We've only learned about 3 types of DC-DC converters in the course,

  1. Buck
  2. Boost
  3. Buck-Boost

So I'm positive it would be one of those 3, and in this case it should be Buck-Boost I believe.
 
Bump, still looking for someone to verify my work!
 

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