Synchronous Buck Converter Controller

269

05:21:16

Set the output voltage by setting the value of the voltage source.

published 11 years ago

hurz

11 years ago

Nice! The filter 1.5mH+5uF seems to me a bit to high in impedance to drive a 2Ohm load. I would use something around 150uH+50uF plus a 3Ohm dumpening resistor to avoid ringing and make the regulator more stable. What do you think? Keep up the good work!

hurz

11 years ago

Took a closer look and noticed the regulator is somehow oscillating. Is this a wanted behaviour?

WTFCircuit

11 years ago

Took a closer look thai is particularly useless, right?

Zafeirakis

11 years ago

@hurz thank you very much for your advice but with many attempts I believe that the 1.5mH+5uF filter make the converter as stable as possible, furthermore there is other problems like ''EC can't find solution'' and oscillations (the oscillations is not a wanted behavior) with other filters. Also I wouldn't add a dampening resistor because I want the efficiency of the converter to be as high as possible... If you're thinking some more modifications that would improve the performance of the controller let me know...😊

Zafeirakis

11 years ago

Also that converter is meant to supply large loads...with small loads it doesn't behave very well...

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