Solar charger noise....awareness.
 

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1






A fairly good write up of the noise issue with solar
regulators/chargers. There are a couple of things in the article I
disagree with, but for the most part, it's what you'd expect.

http://www.windsun.com/General/PV-EMI.htm

I was surprised to see that noise/inerference certification is missing
on a lot of the units.



mike







-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)

iQEcBAEBAgAGBQJNmeCtAAoJEJXfKw5kUPt7bjkH/0/8bkVy3UwVzCTCBQtE2g9J
W3XEz7WcZx8CmTjMQEZVN3q2Ula1qu/5UFp1RjxP4u5Qj6WeiQgsoHtqeRMLgldz
0rj9dHwfkAPNr0ZtbwnebSMqX06zMLoSDnScXUFk0AytV6XjaL kn6KGKatwwaHln
R+Qu5jF8Nn/hQPV9FgGr9HvubHzzNkczWh1ib0XA3F2JUlKjRKI/jLucAk5qHhTW
5jN7HbzFB6tV+HoBgbgC+5BYNHQi8IES0buEMyDtS24VC7nEgg JR8hQsAxR1f2ux
9afLlR4rMn0/93fbc4hC6QyVpBMRpR6ZJHIwtzmKo4hj4x+k0BBe+qOxn0y+92 s=
=5zWx
-----END PGP SIGNATURE-----

Solar charger noise....awareness.
 

On 04/04/2011 08:16 AM, m II wrote:


A fairly good write up of the noise issue with solar
regulators/chargers. There are a couple of things in the article I
disagree with, but for the most part, it's what you'd expect.

http://www.windsun.com/General/PV-EMI.htm

I was surprised to see that noise/inerference certification is missing
on a lot of the units.



mike


You really should be able to run stuff in your house directly off the
batteries. Eliminate the inverter completely. Eham dot com has some
inverter reviews.

http://www.eham.net/reviews/products/74

I'm going to make my ham shack PV/battery, but all the cool stuff runs
on 14 VDC already.

Solar charger noise....awareness.
 

On Apr 4, 9:11*am, dave wrote:
On 04/04/2011 08:16 AM, m II wrote:



A fairly good write up of the noise issue with solar
regulators/chargers. There are a couple of things in the article I
disagree with, but for the most part, it's what you'd expect.

http://www.windsun.com/General/PV-EMI.htm

I was surprised to see that noise/inerference certification is missing
on a lot of the units.

mike

You really should be able to run stuff in your house directly off the
batteries. Eliminate the inverter completely. Eham dot com has some
inverter reviews.

http://www.eham.net/reviews/products/74

I'm going to make my ham shack PV/battery, but all the cool stuff runs
on 14 VDC already.

But if the inverter is still charging the batteries in daylight, won't
the RFI still be a potential problem in daylight?

Solar charger noise....awareness.
 

On 04/04/2011 11:40 AM, bpnjensen wrote:
On Apr 4, 9:11 am, wrote:
On 04/04/2011 08:16 AM, m II wrote:



A fairly good write up of the noise issue with solar
regulators/chargers. There are a couple of things in the article I
disagree with, but for the most part, it's what you'd expect.

http://www.windsun.com/General/PV-EMI.htm

I was surprised to see that noise/inerference certification is missing
on a lot of the units.

mike

You really should be able to run stuff in your house directly off the
batteries. Eliminate the inverter completely. Eham dot com has some
inverter reviews.

http://www.eham.net/reviews/products/74

I'm going to make my ham shack PV/battery, but all the cool stuff runs
on 14 VDC already.

But if the inverter is still charging the batteries in daylight, won't
the RFI still be a potential problem in daylight?

The inverter only creates the Aztec pyramid looking "sine waves" for 117
VAC; batteries are charged through a voltage regulator. There are PV
panels with regulators built-in, which can directly charge 14 VDC batteries.

Solar charger noise....awareness.
 

On 04/05/2011 10:07 AM, m II wrote:
-----BEGIN PGP SIGNED MESSAGE-----

On 11-04-05 06:32 AM, dave wrote:

But if the inverter is still charging the batteries in daylight, won't
the RFI still be a potential problem in daylight?

The inverter only creates the Aztec pyramid looking "sine waves" for 117
VAC; batteries are charged through a voltage regulator. There are PV
panels with regulators built-in, which can directly charge 14 VDC
batteries.


The peak power tracking chargers/regulators have the 'slice and dice'
circuitry in them. The idea being that you can get more power out of a
130 volt panel connection than a 17 volt one.

If you connect a 17 volt panel to a 12 volt battery, it's not too bad
for losses. Try it with a 34 volt panel and you lose half the output, as
the panel output voltage gets reduced to that of the battery.

A better insight into mppt chargers may be seen he

http://www.golandcentury.com/mppt


Thanks. I think some of that is pseudoscience or otherwise
insignificant. I'll eat the inefficiency in the name of noise
prevention. Always avoid PWM if you value your airwaves.

http://www.solardirect.com/pv/controllers/asc.htm

Little ferrites in your clothing, little ferrites in your hair
 

On 04/05/2011 03:32 PM, RHF wrote:


Ferrite Beads Everywhere -ferrites-in-your-hair- ~ RHF
.

When you're in noise you use the little ferrites everywhere

Radio-Activity Turning Japanese Silicon Clips into Lead ;;-}}
 

On Apr 6, 3:43*pm, wrote:
On Wed, 6 Apr 2011 14:49:39 -0700 (PDT), RHF

wrote:
On Apr 6, 9:54 am, wrote:
Including the Nuked Ferrites too?
Handle with Care.
cuhulin

Just Say NO To Japanese Nuked Anything !

All* Japanese Cars and Trucks Are Radio-Active !
* 99.73%

and that's the am/fm truth ;;-}} ~ RHF
-yes-'i'-am-xm-sirius-
.
.

- How about all those Japanese SW and amateur radios?
-
- Jim

Too Late...

None of them will work in 90 Days -cause- All the
Radio-Activity will turn the Silicon Clips into Lead.

nitt? ~ RHF

Radio-Activity Turning Japanese Silicon Clips into Lead ;;-}}
 

One of those tee vee shows I watched a few years ago.There is a Tribe of
People in South America, when they want to 'cut' down a Tree, they use
their Teeth.They knaw on those Trees so they can push those Trees on
down to the Ground.They don't need no steenkin saws or axes or hatchets
or machetes or knives.
cuhulin