Re: New Monitor: Power Supply Design

One thought. Look at the likely failure modes of this and how it could
effect the rest of the board.

With the rectifier what happens if it melts down and you get a 48V ac into
the rest of the system? What happens if you lose half wave rectification?

What if a cap shorts? Opens?

Etc. I have no idea how to answer these but they are what I would think
about.

David
----- Original Message -----
From: James Nelson <nelsonjjjj@didactics.com>
To: <vectorlist@lists.cc.utexas.edu>
Sent: Friday, November 12, 1999 8:16 PM
Subject: New Monitor: Power Supply Design

> The power supply will consist of the following:
>
> 48V center tapped transformer
> Bridge Rectifier package
> 2 Electrolytic capactiors rated at 6800 uF.
> Some 0.47 uF caps for higher freq noise.
>
> That's it Dead simple, and should be good & reliable.
>
> As far as regulation goes, there will be none. It should be unnecessary
due
> to the superior low frequency noise rejection characteristics of the
LM3886.
>
> I did find a good source for the 48V center tapped transformers.
>
> James
>
Received on Sat Nov 13 03:01:27 1999