piclist 2016\04\28\001449a >
Thread: : Paralleling PV panels with differing illumination levels.
face BY : James Cameron email (remove spam text)

On Thu, Apr 28, 2016 at 03:51:30PM +1200, RussellMc wrote:
> On 28 April 2016 at 14:19, Harold Hallikainen <.....haroldspammai.hallikainen.org>
> wrote:
> > Because the maximum power point appears at about the same output voltage
> > independent of illumination, it appears you'd do fine connecting the
> > panels in parallel, since this would force them all to this MPP voltage.
> > See http://www.linear.com/solutions/4445 for the relationship between MPP
> > and loaded voltage.
> >
> >
> ​Yes.
> I had included a comment on that concept ​near the bottom of my answer.
> Note that they claim the idea is patent pending.

Position of "patent pending" was just after "input voltage
regulation", so take it to mean their implementation of IVR rather
than the outcome of the regulation itself.  C1 acting to smooth
whatever it is they are doing in the chip, which from datasheet block
diagram looks to be something like PWM of Vin to SW transistor


> I'd be surprised if that would stick, but maybe.

Maybe the way the PWM is derived, IANA(P)L.

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James Cameron
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Subject (change) : Paralleling PV panels with differing illumination levels.

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