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Hi,
I am wondering if anyone has experience using a battery pack for WARP v3. If so what battery did you use?
Is there any specific input voltage range that should be absolutely kept?
We have a 3DR IRIS+ battery pack (https://store.3dr.com/products/iris-plus-battery) that we measure its output voltage at 12.7v when fully charged and 11v at the minimum. Is this range safe for the WARP board or could it cause any damage?
Thanks!
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Officially, we have no battery recommendations, and if anything goes wrong using one it's an out-of-warranty problem.
Unofficially, using a 12V battery should be no problem and we know of a few users who have done this successfully.
The WARP v3 12VDC input rail drives a few circuits:
-TI PTH08T2xx switching regulators: 4.5v - 14.0v input
-LT1962 linear regulator: 3.7v - 20v input
-MAX16050 power monitor: 2.7 - 13.2v input
-Radian FA35+K52B+T710 Fan: voltage range unspecified; I would guess (again, unofficially) that 12.7v would be fine
The external 12v rail is also connected directly to the FMC slot's 12v power pins. If you're using an FMC module be sure to check its circuits' 12v tolerances.
The power jack on the WARP v3 board is a 5.5/2.1mm barrel jack (CUI PJ-102AH), 12VDC on the inner pin, sleeve tied to GND.
Be sure to consider the current requirements of your FPGA design vs. the battery capabilities. It would be a good idea to measure the current draw of your design using an ammeter in series with the standard power supply and compare that current draw to the battery's max supported current.
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