138 2887 5692 / Mr.Guo
Number of layers: 4 layers;
Including: optocoupler isolation module, relay control module, MOS switch control circuit, ADC acquisition module related to temperature detection and water level detection, ESD protection circuit, USB high-speed bus, motor fan control circuit, SPI bus and other modules;
This PCB has the characteristics of a multi power system and pays more attention to the treatment of planar segmentation in its design;