I have a 24V Generator starter system. Which controls all the engine parameters and includes a starter and it's supercap of 500F.
I'm supplying it with two redundant 24V 1kW sources. First DC/DC converter is directly connected to the management system (about 1A). Second DC/DC converter is connected to the supercap.
The management system starts and after a selftest and about 30s toggle the supercap contactor for loading.
Both converters should be in redundant mode, if one fails, the second should be able to compensate the loss and reduce the supercap inrush current impact.
However, when supecap is completely empty and starts to charge, the voltage is going under 16V (24V - 33%) and unfortunately the management is restarting causing troubles.
Do you have any ideas how to smooth the voltage at least till 18V? For the motors there are some soft starters. For the pre-charge there some Resistor+Contactor based circuits, but need a voltage monitoring. Unfortunately I have no Digital Inputs available.
Is there any on shield solutions?
Thanks in advance