Re: charge controller



skcscuba wrote:

I live off the grid in Puerto Rico and have 1600 Watts of solar cells
charging a 24 V battery
bank. Unfortunately we don't have quite enough power (I need my
computer and 200 Watt tv, and wife
needs her dishwasher and washer and dryer). I purchased a 1.5 kW boost
buck transformer that I have
wired for 240V in and 32V out (50 V open circuit)that I send into a
full bridge rectifier array.
The literature for my M60 outback charge controller seemed to indicate
that they could accept this
current source (from my generator when I want to top off the
batteries), but to make a long story
short, it won't work and I checked with several of the other solar
controller manufacturers and
they won't guarentee that their units will work either. I need the
other half of a battery charger.
How about an ultra simple charge controller using power fets (I have 4
nice ifrp460 on a heat sink) to give me 27.2 float charge voltage
limited to 40 amps. I would be happy to pay someone to design this and
even happier to pay to have one built.



Why doesn't it work? Is it because it is a pulsating DC supply? Then, hook a
(large) capacitor across the bridge rectifier output. Something like 10,000 uF
aluminum electrolytic should do the trick.

Jon

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