The PCB should made with 2-oz copper to reduce unnecessary power loss in the circuit board. Photograph of a readymade ACS712 current sensor module is included here as an example. current sensor module ...

His blog post does not have the board layout, but the pictures of the PCB should be enough for someone wanting to build their own version of this current sensor.

These galvanically isolated, board-mount sensors perform current detection in photovoltaic inverters, switching power supplies, DC motor drives, and variable frequency drives. At the heart of the ...