This is my first time posting here.
I have an issue, I want to charge battery from 2 sources simultaneously, but I am kinda a worried about how that might work.
If I add the voltage feedback directly to battery then one charger might trick other charger. I guess I could put diodes, but I have a feeling this might make me another trouble. Of course instead of diodes I can use Mosfets for lower power losses in this load sharing.
Have any of you guys tried something like this? Any advises?
Best Answer
Current shared Voltage regulators that do not sense remotely are inherently stable with Diode OR isolation. ( high supply delivers the current.)
Unlike above Current Shared DC supplies with shared remote sensing must be balanced within 10% typically and often require a preload of 10% to be stable due to change in loop gain high low load.
I recall 20 yrs ago in RB, Cali,USA (Unisys Server factory) we had redundant Current shared dual supplies with major brand OEM source who had to come out and view stability oscillation for themselves to know their design failed without a 10% preload, so we added this to the Production initial HASS test process.