Hello.
I have a pcb that has two power supply's of 5v DC.
PSU A - esp32
PSU B - pixels
The circuit powers a esp32.. The esp32 board can trigger a relay that turns on the PSU H which powers a set of fuses on the PCB that is used to power up some pixels.
On the the PCB I have a jumper between PSU A and PSU B so that I can run it all of one PSU.
My concern is that one day I'll forget to remove the jumper and power both and get a nice bang.
So can I put a diode after the jumper so that I can power the esp32 from PSU B.. And stop flow back from accidentally happening from PSU A.
The esp32 I'm using needs 3amps.
What's size diode do I need?
I have a pcb that has two power supply's of 5v DC.
PSU A - esp32
PSU B - pixels
The circuit powers a esp32.. The esp32 board can trigger a relay that turns on the PSU H which powers a set of fuses on the PCB that is used to power up some pixels.
On the the PCB I have a jumper between PSU A and PSU B so that I can run it all of one PSU.
My concern is that one day I'll forget to remove the jumper and power both and get a nice bang.
So can I put a diode after the jumper so that I can power the esp32 from PSU B.. And stop flow back from accidentally happening from PSU A.
The esp32 I'm using needs 3amps.
What's size diode do I need?