Higher Voltage low Cost Controllers [RE-wrenches]

Ray Walters walters at taosnet.com
Fri Jan 19 18:06:59 PST 2007


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Hi David;

Interesting idea, and I might try to take it one step further. How would 
those 24 volt controllers behave, if we wired them together in series? 
I've done it before with Todd battery chargers, and it worked fine. If 
this were possible, it might solve another vehicle charging system I'm 
doing: 1.2 amps at 120 vdc nom.

Thanks,

Ray

 David Katz wrote:

>
> Ray,
> If you really want to go cheap, divide the array into two 24 volt 
> arrays and charge each half of the battery bank with a 24 volt array 
> and  a Phocos CX10 or something like it.
>
> David Katz
> AEE Solar, Inc.
> formerly Alternative Energy Engineering
> 1155 Redway Drive - Box 339
> Redway, CA  95560  USA
> Phone 707-825-1200
> Fax 707-825-1202
> email david at aeesolar.com
> www.aeesolar.com
>
>
>
>
>
> Ray Walters wrote:
>
>>
>> Greetings Esteemed Wrench People;
>>
>> I need a 48 volt charge controller 5 amp rated or so that is under 
>> $100. Anyone know of such a beast. It is for a small Solar vehicle 
>> (VIPV). I thought I could get by without a controller, but the 1.2 
>> amp array is still raising the sealed batteries to unrecommended 
>> voltages. I tried some resistors inline to essentially raise array 
>> voltage past its MPPT, but its not reliable enough for my taste. I'm 
>> going to just load a clunky old C-40 on board, if I can't find 
>> something better, but that is vast overkill, costly, and heavy too.
>>
>> Thanks,
>>
>> Ray Walters
>>
>>
>


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