PoWer Profiler Kit 2

RE: PoWer Profiler Kit 2

helsing — Tue, 19 Apr 2022 12:42:50 GMT

Hi Utkarash,

Thank you for the update. Please let us know if you have any new findings.

Best regards,

Håkon

RE: PoWer Profiler Kit 2

UVP — Fri, 08 Apr 2022 06:44:20 GMT

Hello Helsing,

Sorry for Delayed Response

Thank you for the input and all the suggestion this will work i guess I will try it.

RE: PoWer Profiler Kit 2

helsing — Tue, 15 Mar 2022 14:22:17 GMT

Hi Utkarash,

[quote user="UVP"]So we want to recongnise that when where these instancess and how long they lasted so that we can determin during which phase of its functionality does the device consumes more current,[/quote]

One idea is to use the digital channels on the PPKII and generate events on the IO pins.

Would this help you analyze the power consumption?

RE: PoWer Profiler Kit 2

helsing — Tue, 15 Mar 2022 12:26:40 GMT

Hi Utkarash. Thank you for your replies. I understand your concern. I am discussing this with the PPK team and will get back to you.

RE: PoWer Profiler Kit 2

UVP — Fri, 11 Mar 2022 08:45:15 GMT

Thanks for the feed back,

[quote userid="113527" url="~/f/nordic-q-a/85598/power-profiler-kit-2"]We Start the measurement at 14:16 PM. after 1 hour and 39 minutes (at 15:55 PM) the power profiler measurement duration shows only 1 hour and 28 minutes.[/quote]

If the sampling is for every 10 usec and if we calculate the time difference after calculation for above case we get is 9 to 10 secs however we are getting the time diferenece of about 9 minutes,

So if this is the case we are also not able to do calculation about the exact peak current consumption time,

Can anyone help in this case to understand how we can avoid these difference.

RE: PoWer Profiler Kit 2

UVP — Thu, 10 Mar 2022 07:51:25 GMT

Thank for the feedback,

[quote userid="90815" url="~/f/nordic-q-a/85598/power-profiler-kit-2/357202#357202"]How does this phenomenon affect your work?[/quote]

When we are measuring the current for a long period of time (for example 1 week) as discussed earlier the difference is big.

In this measurement there are instances where we have a peak current consumption from the device side,

So we want to recongnise that when where these instancess and how long they lasted so that we can determin during which phase of its functionality does the device consumes more current,

[quote userid="90815" url="~/f/nordic-q-a/85598/power-profiler-kit-2/357202#357202"]The time on the axis is based on the fact that every sample from PPK takes 10usec[/quote]

Okay thank you for the information, So does this mean that we have to carry out some calculations with respect to this sampling period and figure the peak consumption details

Also as i understand when we are calculating the total current consumption should we consider the actual time between the start and stop time of the calcul;ation instaed of the duration show on the PPK.

RE: PoWer Profiler Kit 2

helsing — Wed, 09 Mar 2022 14:15:24 GMT

Here is feedback from the team. "The time on the axis is based on the fact that every sample from PPK takes 10usec. If the PPK hw for some reason is not accurate in that regard, or there is some data loss that is not reported otherwise, it could lead to this difference."

How does this phenomenon affect your work?

RE: PoWer Profiler Kit 2

helsing — Wed, 09 Mar 2022 13:17:55 GMT

Hi Utkarash,

Thank you for reporting this. I will discuss this with the PPK team and get back to you.

Best regards,

Håkon