Digital I/O
Flyback Diode and NI-9476
Hello, I plan to use 3 channels on NI-9476 to drive relay controller that requires ~420mA, and I just want to confirm that if I can tie all 3 channels to one flyback diode as shown in the diagram below:
Thank you!
No, always place the flyback diode very close to the inductive load and not far away.
In this case, use separate flyback diode for each relay, close to its coil.
What relay model are you trying to control?
Please note that it is not recommended to drive more than 250mA load using a channel as per specs
