Author Topic: Why many (most?) solar MPPT chargers are common positive? (Read 1059 times)

fubar.gr · « **on:** January 31, 2018, 12:20:58 am »

I am searching for parts to build a small (10-20Wp) solar powered system just for fun and I noticed that many of the MPPT battery chargers are common positive. Is there a reason for that?

Bratster · « **Reply #1 on:** January 31, 2018, 02:43:27 am »

Can you post some links to what you have been looking at?

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mtdoc · « **Reply #2 on:** January 31, 2018, 02:53:12 am »

I am familiar with most of the popular MPPT controllers in the USA - Outback Power, Midnite Solar, Morningstar and Schneider Electric. None of them are common positive.

fubar.gr · « **Reply #3 on:** January 31, 2018, 08:28:43 am »

Most made by EPSolar have common positive ground, eg the Viewstar AU: http://www.epsolarpv.com/en/index.php/Technical/download

David Hess · « **Reply #4 on:** January 31, 2018, 05:15:25 pm »

Common positive allows the use of a less expensive n-channel power switch without a level shifting stage.


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Author Topic: Why many (most?) solar MPPT chargers are common positive? (Read 1059 times)

fubar.gr

Why many (most?) solar MPPT chargers are common positive?

Bratster

Re: Why many (most?) solar MPPT chargers are common positive?

mtdoc

Re: Why many (most?) solar MPPT chargers are common positive?

fubar.gr

Re: Why many (most?) solar MPPT chargers are common positive?

David Hess

Re: Why many (most?) solar MPPT chargers are common positive?

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