Current profiler PPK-II shows undesired current waveform for the first 500uS. It is certain that it is not coming from Device Under Test.

[HarishR]

Software version : v4.1.1

Hardware procured in month of June 2024.

Please suggest if any setting needs to be optimised to filter out the inital current.

Load current is ~5- 10mA.

This current profile was also observed when we connect a tried to measure a current flow through a resistor.

Observe this anomaly both in Ampere Mode and in Source Meter Mode.

Setup: Bench Top Power Supply --> PPK-II Connected in Series --> DUT  (Ampere Mode)

[Kazi Afroza Sultana]

Hello,

This initial high current could be the outcome of phantom effect. When sampling rate is high, this can be caught on the logic analyzer. You can adjust Spike filter from the advance configuration to mitigate the issue. 

[HarishR]

Hi,

Can you please suggest the spike filter setting to mitigate those spikes. Is the snapshot attached in previous reply the proposed configuration?

[Kazi Afroza Sultana]

Hello,

The snapchat on the previous reply was to show from where you can adjust the spike filter based on your application requirement.