troubles of using Power Profiler Kit(1)

[xvhongpeng]

Dear friends, my current measuing instrument is Power Profiler Kit. I have some troubles when i use it. e.g. 1) how to completely stop an updating plot that a PPK draws? even i click the "stop" button on the desktop application, the plot it draws still moves on with a low speed. I think this should not happen. 2) as shown in the pic1, why the current value can be a negative one? 3) as shown in the pic2, i cannot export a plot as a image file. If i do it, nothing is exported. Best Regards

[Stian Røed Hafskjold]

2. You can have negative currents because of capacitance in the circuit. The PPK also uses algorithms to calculate the correct avarage current over the switching points, i.e. when the PPK switches measuring resistor value. This can lead to some negative spikes. The average current should be correct though.

3. Seems like there are some problems with exporting picures. I will report it internally. Meanwhile you can use the snipping tool in windows, which should do pretty much the same thing. Sorry for the inconvenience.

[Stian Røed Hafskjold]

And just to let you know. We are working on a completely new and better software for the PPK at the moment, which is not written in python.

[xvhongpeng]

thank u very much.