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huangyong

MOSFET PSU

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Seems like no one has tried any discrete power supply before, so i take the lead, experiment this easy and effective opamp + MOSFET power supply. It works, but still need to fine tune it here and there.

 

the schematic is here zerosoft, a design by zerosoft from Korea, the famous DIY master's counterpart.

 

This is my first trial :

Going to make a PSU supplying +20V. Single rail.

user posted image

 

measured at 20.++ V which is not good. mad.gif

user posted image

 

still fine tuning it, but this thing can output a whopping 4.5A into a 10ohm resistor...

and burn it..real cool... w00t.gif

Edited by huangyong

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A play on the Walt Jung Super-regulator circuit.. I actually have a dual-rail version of it built on protoboard.. Never got around to testing it because I didn't bother to get the opamps for it.. LOL

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I am going to build mine buffer.I am really happy with the discrete circuit.

Hi huangyong,your try out is very useful to me.

 

the attached is mine discrete buffer(WJ buffer)

 

post-12-1115689748.jpg

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