![]() The red dot indicates the point where it is effectively dead, but that can be changed in the parameters at label "1". The curve at the bottom right shows the characteristics of the selected battery. Checked, that 100 ohm resistor stays in play. If unchecked "Persist Sense Resistor" automatically jumps back to the high-current (800 ♚ to 500 mA) range. That uses a 100 ohm sense resistor if the DUT were to come out of sleep mode it's possible the burden current would inhibit its operation. If you're collecting sleep data you'll probably select the 10 ♚ to 800 ♚ range. One is the "Persist Sense Resistor" (an undescriptive name) option. There are some nice features that the manual doesn't address well. In the picture I changed that from 60s to 1000s, and the "captured" battery life goes from 2.94 to 34.32 days. Perhaps a longer sleep time might be an option. Change some, and at label "3" the tallies will update. At label "2" in the picture there are a number of parameters you can noodle with. The BattLab-One's raison-d'etre is to play with different scenarios to optimize a DUT's energy consumption. Sleep current is shown as an average value only (it shows up in the graph but is so much less than the active value that it's hard to discern much quantitative data).īut this is just the start. Or, one can tell the tool to acquire for a long time and get a representative overall view of the DUT's operation. This means in some cases you'll have to configure your system, perhaps by instrumenting the code, to assert a trigger signal to start acquisition. There are two ways to capture data: press the "Capture Active" or "Capture Sleep" buttons, or configure your DUT to assert a triggering signal that the BattLab-One uses to start acquisition. Average active current is displayed (87.9 mA) and average sleep (165.18 ♚). The graph shows active peaks of about 175 mA and, at the end, a big drop as the DUT goes to sleep. I collected 20 seconds worth of data, which for the DUT I used covers a wake and portions of a sleep period. I've selected a LiFePO 4 cell the application automatically populates the other entries like battery capacity, voltage, and the like, but these fields can be edited as needed. I added the red number "1" which is an area where you set the battery parameters. The UI image above shows the application after I've captured some DUT data in both active and sleep modes.
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