Mode 1 (user is drawing 10mA or less):
In this mode, the current flows through a diode and the user will see the output voltage drop as more current is applied according to the diode's properties. As current increases, the output voltage will decrease.
Mode 2 (user is drawing between 11-30mA):
Once the 10mA total output current threshold is reached, the protection circuitry will turn on the MOSFET (acting as a switch), shorting the diode. The forward voltage drop across the diode will be removed as the diode is now shorted.
Mode 3 (user is drawing greater than 300mA total from both connectors):
In this mode, the NI myRIO will go into over-current protection and turn off the user rail.
Collaborate with other users in our discussion forums
A valid service agreement may be required, and support options vary by country.
Thank you for your feedback.
You changed your response to Not Helpful
You changed your response to Helpful