USB Charger Assembly
I created this USB Power supply to try out one of the reference designs in the RT8288AZSP SMPS. It was also an opportunity for me to try SMD reflow soldering with a stencil and hot plate.
|Solder Paste Stencil|
The Solder Paste Stencil came from OSH Stencils. It was pretty easy to use, but the blue tape didn’t really hold it tight against the board so i got a bit of solder paste bleeding outside the pad boundary.
|Reflowing on my Mother’s hotplate|
|Almost all parts have reflowed|
The SMD soldering was perfect. The only problem turned out to be the through holes for the USB-A jack. Somehow I ended up with the drill diameter set too low. After some careful work with a flush mount side cutter and soldering Iron I turned the through hole jack into a surface mount one and managed to make contact with the board.
|Completed board with through hole jacks installed|