The power module on the PCB board often causes serious EMI problems. In order to reduce the interference of the power module to other circuit parts, the power module needs to be isolated. After consulting related information, some people suggested that the power module should be placed on the edge of the board, and then a via tape should be placed between it and other circuits. So the question is, how to route the output end of the power module after punching the via tape?
Martha Veröffentlicht am December 30, 2020
I haven't photographed this, but I have often seen various switching power supplies in maintenance. Some also use enameled wire as the connection wire.
Tabitha Veröffentlicht am December 30, 2020
You can use an external multi-strand copper wire for output.
Tammy Veröffentlicht am December 30, 2020
First of all, confirm whether the interference is conducted or radiated. Then try to absorb and solve the conducted interference, optimize the layout and wiring, separate the large current ground from the small signal ground, and connect a single point to the ground terminal of the final input terminal of the PCB, and output Add some common mode filtering at the end; consider adding a shielding shell for radiation.
