Help me with designing a 48V/10A battery charger

[zio_nneo]

Can anybody help me on designing the 48V/10A battery charger. It should have facility of short circuit protection, polarity protection and over charging protection. I have design one circuit that was for the 12V/10A. It works fine but with simple modifying the ckt the have design 48V but it gave problem....Can anybody help me on this. For designing the 12V charger I have used SCR. SO I expect the circuit for 48V also made from using SCR. Thanx in advance.

 

[blueroomelectronics]

Battery Charger Help

Firstly wrong forum, secondly post your schematic for the first charger.

 

[wizpic]

Battery Charger Help

You say your 12 volt works ok with short circuit protetion.

Did you use a Pulse transformer ?

I have a circuit I found on the net using 2 SCR, pulse transformer and a 555 lad I'll dig it out for you

Cold you upload your 12v schemstic

wizpic