Fecha de publicación: 29/09/2020 Fuente: Wipo "IOT" The utility model discloses an NB-IoT switching power supply. The NB-IoT switching power supply comprises a main circuit, an A/D converter, a CPLD processor, an NB-IoT module and a computer. The output end of a sensor in the main circuit is electrically connected with the input end of an A/D converter. The output end of the A/D converter is electrically connected with the NB-IoT module, the inputend of the CPLD processor is electrically connected with the NB-IoT module, the output end of the CPLD processor is electrically connected with a switching tube in the main circuit, and the NB-IoT module is wirelessly connected with a computer. According to the utility model, signals acquired by the main circuit are wirelessly transmitted through the NB-IoT module, and more reliable control of themain circuit is realized by utilizing the characteristics of strong processing capability and strong maintainability and renewability of a computer.