BQ25504. The datasheet shows several pictures of efficiency versus input voltage sweep or current sweep. I'm trying to reproduce some of them in my lab using a SMU from Keysight and other instruments. But I don’t understand the parameters and the instruments setup quite well … For instance:
- How are you connecting the source and measurement unit (SMU) at the input (through a series resistor while in voltage mode?).
- Which is Icomp? Is it perhaps the source meter in voltage mode and the Icomp the compliance current limit?
- Where is connected the output system load?, At the battery Vbat ? perhaps replaced by a simulated battery using another SMU? Is the Vstor left unconnected while performing such measurements?
- Could you draw a pair of schematics of the instrumentation system for obtaining for instance Fig. 1 (voltage sweep while fixing the input current at 10 uA) and Fig. 4 (current sweep while fixing the voltage at 2 V)?
Thank you very much for your attention,