POS is a kind of multi-functional terminal, which can realize electronic fund automatic transfer if it is installed in the specially engaged merchants and accepting outlets of credit card and connected with the computer network. It has the functions of supporting consumption, pre-authorization, balance inquiry and transfer, etc. It is safe, fast and reliable to use. Payment products also have great extensibility, including mobile POS, desktop POS, and bracelet payment. From the perspective of platform, it can also be subdivided into traditional POS and intelligent POS. High integration of internal function circuit, sweep code circuit, printing circuit, communication circuit, charging circuit, screen drive circuit and so on, the selection of inductor pays attention to high power density, good shielding effect, high filtering impedance value, SWAI series, SHCB series, SHFI series and so on are widely used in this field. For more details, please contact the Marketing Department：marketing@scientic.cn