F5 psu layout

[OliG]

Hello,

I'm building an F5 amplifier and I am going to try to etch my psu pcb. I just finished the layout and I would like to know if you can see anything wrong with this layout.

I followed the schematic from the owner manual of the F5. I wanted it on one layer as this will be my first try at etching. I know the connectors should be close to the edge, but putting X3 this way was easier... is it gonna be a problem other than aesthetic?

Please go easy on me... this is my first try with eagle.

Thanks !

 

[AndrewT]

PSU PCB,
I can see how the common Zero Volts from the input side caps connects to the middle pin of the three way connector. Giving +ve, 0, -ve.
How does the Zero Volts of the output side caps connect to that pin?

 

[OliG]

Hi Andrew,

The output side caps are also connected to the center pin of the 3 way connector. I know the trace who gets there is small... could this be a problem?

Thanks !

Here is a closer look of the center connector, without the silk screen:

 

[AndrewT]

OK, but remove the bits of ground trace that don't carry any current.
Then you might be able to improve trace widths particularly if the 3way is rotated 90degrees.

 

[OliG]

Thanks for this idea Andrew, rotating the 3 way surely improve traces. I also did change the resistors size as thoses I ordered are 15mm and I had first selected 12mm for the layout.

Anything else could improve it?

Thanks !

 

[Audiofanatic]

Yes!

Thanks for this idea Andrew, rotating the 3 way surely improve traces. I also did change the resistors size as thoses I ordered are 15mm and I had first selected 12mm for the layout.

Anything else could improve it?

Thanks !

Hi,

Why don't you use two bobble connection in the middle instead of one with three positions? That way you'll have more ground path in the middle instead of a narrow ground in the middle.

Just my two cents.

All the best,

Audiofanatic