From the functional circuit of the pen, it can be divided into several parts. According to the requirements of different platforms, it can be divided into different main chips, namely CPU, which needs single-phase or multi-phase power supply group. GPU can be divided into low, medium and high levels according to different display configurations. The corresponding graphics card power varies from two to eight phase power supply groups, which require large current. In addition, different configurations can be selected according to different hardware peripherals, such as hard disk, network card, WIFI, Bluetooth, screen driver, charging circuit, USB port, etc. Select corresponding power supply groups to supply power to these loads. In the pen circuit, small size, good magnetic shielding effect, high power density, so SCCB series, SWAI series are widely used. For more details, please contact the Marketing Department：marketing@scientic.cn