Hello,
I have a project I'm working on and I have a question about referencing isolated grounds.
So basically there's GND_A for 24V input and GND_B for a 5V output on a DC-DC converter. The micro-controller is powered by the 5V side which uses GND_B. I need to monitor the voltage of the 24V input at micro end byusing one of its analog input. The only way the analog works is obviously if I connect (jump) GND_A and GND_B. Is this the correct way of doing this or should I be adding some type of circuitry? Any help will be appreciated.
I have a project I'm working on and I have a question about referencing isolated grounds.
So basically there's GND_A for 24V input and GND_B for a 5V output on a DC-DC converter. The micro-controller is powered by the 5V side which uses GND_B. I need to monitor the voltage of the 24V input at micro end byusing one of its analog input. The only way the analog works is obviously if I connect (jump) GND_A and GND_B. Is this the correct way of doing this or should I be adding some type of circuitry? Any help will be appreciated.