[RE-wrenches] Paralleling CC

[Darryl Thayer]

Hi Jay, as I see it there are two problems with parallel.  One is the
burnout of the FET in one of the controllers, and the other is the "not
knowing what the other is doing.  The burn out is caused by the capacitors
in one CC supplying a surge current to the other CC.  I tried this and it
seemed to have success.  However,  I do not know how to trick the two CC to
be both in absorption at the same time.

On Fri, Apr 24, 2020 at 10:02 AM Jay <jay.peltz at gmail.com> wrote:

> Hi All,
>
> Are there any CC out there that can parallel on the input side?
>
> Situation is a older 12v system, 300’ wire run using a MX 60.
>
> Client wants more PV, but CC is maxed out. Upgrading to say FM-100 is way
> expensive and needs new mate etc.
> Yes could totally redo the system to 24 or 48v and use iota for 12v loads.
> Buts that’s  expensive.
>
> Installing new wire would be complicated and expensive. But wire is large
> enough to handle more power.
>
> Are there are any cc that can parallel on the input side, which would be
> the easy solution if it exists
>
> Thx
>
> Jay
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