DC to DC converter Topologies.

[electroM]

There are varies dc to dc converter topologies like Buck, Boost or Buck-Boost & others!!

But which one is used for what application??
What are selection criteria/ parameters??


Experts Plz discuses each of this in detail so that every one will be benefited.

 

[mtwieg]

This is sort of like asking "what are all the different transistor types used for?" It's a vague question with no specific answer.

For the most basic canonical topologies, you will decide based on what kind of ratio there will be between the input and output voltage. But things are much more complicated once you consider the subfamilies which use transformers (flyback, forward, pushpull, bridge, etc). Then you no longer have any strict limitations on the voltage ratio, and other factors become dominant (cost, power handling, ripple, bandwidth, etc).