Inrush is a real bitch. I make it a rule to include simple inrush current control circuits whenever I do DC input that sinks more power than, say, a USB cable.
Lotsa surprise inductances out there. I've felt your pain re: inductance + input cap creating a resonant tank, too. That's a nasty surprise when you manage to create that resonance with your wiring.
Lotsa surprise inductances out there. I've felt your pain re: inductance + input cap creating a resonant tank, too. That's a nasty surprise when you manage to create that resonance with your wiring.