Need support to design Battery charger using Mosfet H-bridge Configuration

Hi All,

I Am planing to design a battery charger using H bridge mosfet configuration .

I was new to this design

Battery spec as follows:

Battery voltage ---24V
Battery capacity -- 45Ah

So the charging current should be 10% of battery capacity. am i correct??

So the charging current is 5A.

Am having some querys. What are the mosfets hve to be used here?? Is it 2 N-channel & 2 P channel mosfets??How we need to arrange them??

How to controll the current if the battery is getting charged??(I mean how to reduce the current)

As we know mosfet is voltage controlled devices,but how they are controlling current here??

How mosfets actually works in positive and negative cycles of AC??

Kindly support me ,am new to this design.
Does anyone have any reference designs??

why an H? just use a diode bridge and a single FET charger ... right off the line? not a good idea for the beginner...