modified 9 years ago

SMPS

01:13:08

A weird topology this turned out to be but it seems to do the job. Sadly I couldn't measure the parameters such as efficiency and such cuz it's widely unstable. It took me half an hour to stabilize it. My prognosis is around 70-80% efficiency

published 9 years ago

nikisalli

9 years ago

Try with just one opamp

hurz

9 years ago

Right niki

thebugger

9 years ago

Yeah i know it's a simpler topology, I've made a few, sometime ago, but i wanted to go with a different approach. The control signal is now at the inverting terminal of the first op amp whereas it should be at the noninverting (not that it matter, just a different approach)

nikisalli

9 years ago

Hey, i have a question for you two. Do you remember my digital function generator? If you don't remember here you are: http://everycircuit.com/circuit/6321443930374144 i tried this on breadboard (just the sawtooth the square and the sine wave) and it worked quite well because i see the waves but with the same resistors networks as the simulation the waves are distorted. So i changed the resistors with uncalculated values and now i can see the waves are really nice but why does this happens?

thebugger

9 years ago

Your sampling rate must probably be low, idk

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