Electronics > Beginners
SMPS chip but not for 240V?
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FriedMule:

--- Quote from: soldar on September 06, 2019, 08:01:40 am ---
--- Quote from: FriedMule on September 04, 2019, 09:25:08 pm --- Great advice, Both of these do look like isolated, but are one better the the other?
--- End quote ---

They are basically the same thing. One is a conceptual explanation of how the circuit works and the other is an actual application. The first one omits many minor things not needed to understand the working of the circuit.

You need to read, study and understand the document in its entirety. You are asking questions which are answered in there. Reading manufacturers' application notes is a very good way of learning.

You need to read up about the different topologies and what they are good for. Nobody can give you here the basic knowledge needed to design SMPS. That requires hundreds of hours of study and learning.

For a start:
http://ww1.microchip.com/downloads/en/appnotes/01114a.pdf

BTW, it says
--- Quote --- A  buck  converter,  as  its  name  implies,  can  only produce  lower  average  output  voltage  than  the  input voltage.
--- End quote ---
"As the name implies"? What is the meaning of "buck" in this context? And why does it imply it con only produce lower voltage?

Another: https://www.ti.com/seclit/ug/slyu036/slyu036.pdf

--- End quote ---
Thank you a lot, great links and helpful comment, I will do as you and other suggests. :-) I can also start by learning ad trying out low voltage bucks (12V to 5V) and so on, if I destroys some components on the way, no harm:-)
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