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tetrabiodistributed / papra-pcba

Printed Circuit Board Assembly (PCBA) for the PAPPRa m12 controller
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nail down the final blower selection #61

Open mmroden opened 2 years ago

mmroden commented 2 years ago

Are we targeting the CUI-154? It's passing all of our CFM requirements, and if so, we need to make this call so that we can have the boards properly paired and the electronics worked out.

If we can't get consistent power to the 154, may have to change things.

battery discharge curve shows that we'll drop to 11-10 volts, which can cause fan/board issues.

Buck boosters? costs efficiency, they are pretty lossy, pricey, and bulky (it's a whole circuit, not an individual component).

The decision would require characterizing the battery voltages as the battery discharges; lower than 11 volts and the fans will be below 4CFM at max output, so could be used as a way to determine the life of a single battery.

May also want to characterize Milwaulkee brand batteries vs the amazon batteries. Could break apart the Milwaulkee battery to see what battery cells it has.

mmroden commented 2 years ago

This one is still open if we go to the p100 filter design for 96mm fans