From 2016 E14 has new BBB manufacturer (different box and price).
We think "old" modells manufactured in CN, "new" one manufaactured in PRC.
From that moment we recognize new BBB board has a different startup current characteristic.
The "old" baords can interwork with power supply has advanced overcurrent protection.
But the "new" board has trouble. If we connect it to this kind of power supply then we recognize some oscialltion. This mean:
- pws charge BBB
- in one point recognize overcurrent and redce output
- BBB current consumption return to normal
- pws normalize its output
The sequence 1-4 1-4 ... make contignous oscillation on BBB's power input.
If we using power supply with few protection we does not recognize this problem.
Anybody recognize this problem too?
Anybody has idea which part change generate this trouble (capacitor, resistor)?
