[eagle] Re: 70 cm Receiver IF Spurs - Problem Solved
w5did at amsat.org
Fri Jun 29 19:31:22 PDT 2007
I have been watching the correspondence about noise on the power buss
with great interest. I am waiting to see if a noise specification
comes out of this. I can tell you that the power buss will probably
be noisy at least to your standards. The latest plan would have lot's
of capacitance on the buss (many Farads) but of course that would not
help with the high frequency noise. I have been noting the discussion
about noise from the inductors and that will be taken into account in
the design. In other words we will probably shield all the inductors
as best we can and have EMI shielded Power converters. The plan
calls for a distributed system where there will be many small
converters and not just one or two big ones.
We plan to have many max power point converters mounted near the
solar panels and then many cell voltage to buss converters located
where the battery and super capacitors are placed. They are not
planed to be synchronized so the frequencies will vary based on load.
In other words modules should build in as much noise immunity as
w5did at mac.com
On Jun 29, 2007, at 6:27 PM, Juan Rivera wrote:
> I mistyped that last one. I meant, "Did you EVER receive a reply"
> not, "Did
> you EVEN receive a reply."
> -----Original Message-----
> From: Lyle Johnson [mailto:kk7p at wavecable.com]
> Sent: Friday, June 29, 2007 3:15 PM
> To: juan-rivera at sbcglobal.net
> Cc: 'Chuck Green'; 'David Smith'; 'Dave Black (Work)'; 'Dave Black
> eagle at amsat.org; 'Samsonoff at Mac. Com'; 'Juan.Rivera (Work)'; Lyle
> Subject: Re: [eagle] Re: 70 cm Receiver IF Spurs - Problem Solved
> Hello Juan!
>> Did you receive a reply from Lou?
> Not that I noticed, but when I was on the road the last several weeks
> it's possible something fell through the cracks. I would have
> it to come to the group, though.
> Via the Eagle mailing list courtesy of AMSAT-NA
> Eagle at amsat.org
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