48V Lead acid battery charger circuit

yes..It is a Fuel Cell that generates 48V DC and can output up to 32A, or about 1500 Watts.

From this fuel cell, you need to re-charge a single 48 volt lead-acid battery that has a 26 Ampere-hour capacity.
thats is really correct..
 

SgtWookie

Joined Jul 17, 2007
22,230
OK, so then you will need to charge the battery at a rate of about 3.25 Amperes for 8 hours to avoid overheating/damaging it.

You will need a boost converter to get the 48 volts up to 56 volts.
 

SgtWookie

Joined Jul 17, 2007
22,230
Here is a link to a datasheet on National Semiconductor's LM5022 IC:
http://cache.national.com/ds/LM/LM5022.pdf

It is a boost-type switching regulator.

There is a schematic of the circuit at the front.

I have attached a bill of materials for the items you will need to build the charger/regulator. It is in .txt format, but it can be imported into Microsoft Excel or other spreadsheet program for reading/printing.
 

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SgtWookie

Joined Jul 17, 2007
22,230
hi..Mr.Wookie...
i just bit confusion of this link..
is this link, how its going to help me?
http://cache.national.com/ds/LM/LM5022.pdf
It has your schematic on page 1.
You will need the free Adobe Reader installed to view it.
http://get.adobe.com/reader/otherversions/

I don't know how you would build it without a schematic.

The bill of materials list is attached to my last post. You will need to consult it for the parts to be used in the schematic.

The bill of materials list is comma separated values. You can read it with any spreadsheet program.
 
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SgtWookie

Joined Jul 17, 2007
22,230
is this 48V Lead acid battery charger circuit working?
Did you build it?

I did not build one of these myself.

I did use the National Semiconductor WebBench tool to design the charger for you, provided the list of parts that you will need, and a link to where you can find the schematic.

It is up to you to purchase the parts, make the circuit board, assemble and test it.
 
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