BQ25895 Powerbank breakout
TI recently released an IC combining a single cell 5A lithium charger and 3.1A 5V booster: the BQ25895. Below a working test circuit. Writeup soon.
TI recently released an IC combining a single cell 5A lithium charger and 3.1A 5V booster: the BQ25895. Below a working test circuit. Writeup soon.
A little thermo/altimeter and 500mA USB charger wrapped into one. PCB fabbed, circuit tested, enclosure coming up, writeup soon!
An MPPT portable charger, 3A @ 5.2V output, coulomb counter and USB dataline voltages included. Finalising design, writeup soon!
A 20.000mAh stepper motor solar tracker charger, 2 x 750mA panels (peak), 3A 5.2V output.
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