Problems during assembly

skunkforce / c002_magjack_with_PoE_PD_flyback

MIT License

0 stars 0 forks source link

Problems during assembly #3

Open NP199 opened 10 months ago

NP199 commented 10 months ago

We had some issues:

U3 wrong footprint
D4 wrong footprint or we used the wrong part. A datasheet would be great
The rectifier is wrong and must be updated
The buzzing of the flyback is pretty annoying

@odinthenerd could you refactor the design

odinthenerd commented 10 months ago

D4 is a generic part number, many companies produce these diodes with different MPNs and footprints. 1N4148WS or LCSC: C2128 should work.

U3 lol the coilcraft footrint does not match the coilcraft datasheet. footprint fixed in new version

rectifier: yeah that was stupid, I fixed it (we need to fix in a few other places)

buzzing: the ILIM resistor R3 needs to match the transformer, I changed its value as per the formula in the datasheet and now it doesn't buzz (its a miracle)