I have some related questions here and I hope I get better understanding thru this forum.
ATX SMPS has Over Voltage Protection. Does it mean that it will shut itself down in over voltage situation or will it attempt to regulate the output voltage within limits and still remain on?
Motherboards interact with SMPS thru PWR_ON line Pin#16 on 24 Pin ATX Power Connector. It’s pulled to active low to start the SMPS and open circuited to put it in standby mode. So there’s a circuit on motherboard that controls this.
So if the SMPS has capacity to shut itself down, does it practically override this motherboard circuit, if the need be?
Can OVP kick in if I attach a different load to SMPS instead of a motherboard e.g. a Car Audio system?