Re: power supply flakiness of MuP21 boards
- To: MISC
- Subject: Re: power supply flakiness of MuP21 boards
- From: Penio Penev <penev@xxxxxxx>
- Date: Mon, 17 Mar 1997 18:36:27 -0500 (EST)
- In-Reply-To: <199703171847.UAA28900@pooh.bis.bg>
Dear MISC readers,
We had the following discussion with one of our MuP21 engineers:
> Regarding Andrew's letter we can give the following suggestions:
> - larger power decoupling capacitors (220n to 1uF);
> - large (>4000 uF) capacitors before and after the 7805 regulator.
> - a stable AC source yielding quiet .5 amp at 7.5 V;
> - reliable sockets.
> Also, the 330pF in the video output may be safely removed.
Take it for what it's worth. (And let me know of the result :-)
Cheers,
--
Penio Penev <Penev@pisa.Rockefeller.edu> 1-212-327-7423