Another Switching Regulator

161

01:53:36

Yet another switching regulator. There are many designs from which one can choose. This is better than the last one because it has a frequency reference. The last one worked somewhere in the AM radio frequency range and had spikes up to a few MHz according to the load, meaning it was not frequency stabilised. This would've made designing it pretty hard, because special high slew rate op amps would've been necessary. This one keeps the frequency centered around the reference. So it's deviating slightly above and slightly below the reference generator. The efficiency is very good with output power of 10W and drawn power of 11.5W resulting in an efficiency of 86% 

published 10 years ago

hurz

10 years ago

Remove the second useless opamp and its sawtooth generator. Its waste of material.

thebugger

10 years ago

I saw a similar type of circuit in the article faceblast posted on my other circuit. I don't know if it's useless. It gives a frequency reference.

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