Axpert MEX-1500/ MEX-3000 Service manual
10
3.4 Charger
The Charger of utility is to recharge and maintain the batteries at fully charged condition .The charger
charges the batteries with a constant current at initial stage, and as battery voltage keep increasing, the
charge current decrease accordingly until the charge voltage reached the constant voltage level, and then
the charger turn to the floating charge mode.
As shown in figure 3.4, the charger also employed a buck and full bridge topology.
Figure 3.4 buck and full bridge topology
