Power amplifier PSU SMPS

[gev]

Hello,

100w ... 300w power using PC power supply transformer 2x30v + + fan temperature control pcb size 100x86mm for more power (400,600,800w) see files

test video (load, short circuit etc.)

IR2153 Audio SMPS Circuit 100W-800W - YouTube

download file;
Just a moment...
Download | file.io
Gofile

 

[MorbidFractal]

Seriously... Not recommended. I'm surprised the companies that appear in your zip file actually implemented this but then it is audio. Your layout violates safety agency creepage and clearance requirements.


The circuit itself is a half bridge and therefore qualifies as being voltage fed. As such you need output filter inductors. Of course if you are an audio manufacturer you completely ignore this and rely on leakage inductance in the transformer to save the day.


Unfortunately that means you cannot just drop in any old bodged ATX transformer and expect it not to blow up. Go on... how many times did it blow up before you got one that worked?

 

[gev]

Thanks for your comment @MorbidFractal

First test and after test no problem occurred

Circuit tested too long

I am not an expert I did not take professional measurements (for now)

amateur electronics, it's nice to evaluate the old parts 🙂

Best regards.

 

[Moderation Team]

Thread closed due to concerns over hazards present in this design. The thread will remain closed while moderation makes a decision. This thread is subject to removal.