Power Profiler Kit II: RGB LED fade affects DUT and measurement results

RE: Power Profiler Kit II: RGB LED fade affects DUT and measurement results

Håkon Alseth — Wed, 20 Sep 2023 12:58:00 GMT

Hi Patrick,

[quote user="Asaril"]Will you be releasing a new firmware update for existing devices?[/quote]

Yes, we will release a new version for existing hardware. I do not have the overall details on how configurable this will be, but it is likely going to be a solid state when sampling (ie. no PWM), and/or possibly an update to the GUI to turn the LED feature on/off completely.

We'll make sure that you do not have to go through surgery to get less noise in your measurements in the future :)

Kind regards,

Håkon

RE: Power Profiler Kit II: RGB LED fade affects DUT and measurement results

Asaril — Tue, 19 Sep 2023 12:01:03 GMT

Hi Håkon,

thank you for the kind words and also thank you and your R&D for investigating this.

Looking forward to your solution!

Will you be releasing a new firmware update for existing devices?
We have a number of PPK2 in use that would need the modification, I could get started on that, but of course would prefer a firmware solution rather than taking a knife to the board 🙂

Best regards,
Patrick

RE: Power Profiler Kit II: RGB LED fade affects DUT and measurement results

Håkon Alseth — Mon, 18 Sep 2023 13:53:27 GMT

Hi Patrick,

First off, I must apologize for the inconvenience this issue has caused. It is clear that you have put time and resources into improving this scenario, which is reflected in the detailed bug report that you've submitted to us.

I must thank you so much for helping us improve our design and deliveries, this is highly appreciated!

We will ofcourse address this issue, but I can already confirm your observations after consulting with R&D; the fading LED does indeed add noise to the measurements.

We will look into improving this noise component, as per your proposed solution.

Kind regards,

Håkon