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A project log for USB BiPower OTG Flex Module

Bipolar power supply +/- 3.3V from USB. + rail is ~3A, - rail is ~300mA. For sale on Tindie.

Chris HamiltonChris Hamilton 04/11/2015 at 08:070 Comments

Feel pretty derpy. I just was populating these boards last night (I had a cold which has slowed me down by a week). The ESD/choke coil pattern was elongated. I think I never put one side's dimensions in and it just sort of looked right. Anyway, I fixed it and the bonus is a small improvement in routing, especially on the optional OTG charge pump/negotiator. I'll get them back in a couple of weeks to test again...

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