I have this float SLA charging circuit. using a p channel mosfet as reverse voltage protection. enter image description here
(See circuit)
Supply = 13.8V Battery = 12.8 fully charged
However I want stop the battery back feed to the charging port when I unplug the charger. Right now since Vg - Vs is less then -4V it will stay open.
I also want to avoid using a diode since the wasted energy will be Vf * current draw (20A).
Regards, David
(See circuit)
Supply = 13.8V Battery = 12.8 fully charged
However I want stop the battery back feed to the charging port when I unplug the charger. Right now since Vg - Vs is less then -4V it will stay open.
I also want to avoid using a diode since the wasted energy will be Vf * current draw (20A).
Regards, David
