Need Help for lead-acid battery charging

[Spidyelectronics]

Hi everyone,
I am designing a battery charger for the lead-acid batteries. I need to use bulk charging, trickle charging and float charging technologies in it. For which I want to know that, how can I control the charging current?
If anyone is having any suggestions for this, please tell me.
Waiting for your contribution...

 

[IanP]

If you want to implement all those features you have to employ a microcontroller ..
Here is an example:
Lead Acid Battery Charger using the PIC
**broken link removed**

Rgds,
IanP
:|