Looking for a SMPS block diagram

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x2pher

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Hi all,

can anybody help to provide complete block diagram of SMPS?
Appreciate if you include importance of each and how it affects/relationof the other circuits.
Thanks!
 

Re: SMPS block diagram

The switching converter converts the dc input power into a controllable output at a desired level. Either or both the input and output voltage/current are used for feedback.
Transformers are usually used to isolate the input and the output. The transformers are small in size due to high switching frequency used (~10-100kHz).
 

Re: SMPS block diagram

Below is the circuit of a buck converter. It shows how the control signal is generated.
[ref: Fundamentals of power electronics by Ericksson]
 

Re: SMPS block diagram

Finally, here are the switching waveforms of a buck converter
[ref: First course on power electronics by Rashid]
 

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