Source Instability: Reactive Loads in Constant Current Mode

When operating in constant current mode, especially in higher current ranges, some inductive loads may cause instability.

Instability manifests as oscillating or unregulated behavior across the output terminals, which can result in excessive measurement noise, erratic behavior, or thermal shutdown.

If you notice abnormalities, you can attempt the following to troubleshoot:

• Verify the behavior of the channel by inspecting the voltage across the output terminals with an oscilloscope
• Use the Output Capacitance property to toggle the output capacitor