Is it possible to get the Voltage level in ampere meter mode ?
yguel opened this issue · comments
Reading the schematics of the PPK2, it looks like the voltage of the source (VDUT SENSE) is available to the PPK2.
Would-it be possible to get its value in ampere meter mode ?
In theory, yes. It is used in a loopback when setting the output voltage, but it can also be read during operation. Unfortunately, this is not implemented but is in our backlog.
It would demand some sacrifices to the readout speed of the current measurement. How often would you think you would need to have the voltage of the DUT updated?
For our application it is 10Hz, quite low compared to the usual current measurement needs.
Is that part of the code open source ? We can dedicate ressources to implement the feature.
Unfortunately not, this demands a firmware change. I will get back to you when time allows for prioritizing this
We would need the same, but with a higher frequency. We would like to have it with each current reading, since we are having a very dynamic source and sink as well.
That would probably mean, that the possible sampling speed is at least half the current possible speed, but that would be ok with us.
I addition, it would be handy for the UI, if an area of the measured graph is selected, not only the current and charge are calculated, but also the power by including the measured voltages.
Count me as another user that's OK with lower sampling speed when reading Voltage. It's a very enticing feature! I think the only major feature missing from PPK ecosystem.