Protection circuit and intelligent terminal equipment

The embodiment of the utility model discloses a protection circuit and an intelligent terminal device, and the protection circuit comprises a switch module which is used for being electrically connected with an external load and an external AC power supply device respectively; the switch driving module is electrically connected with the switch module, and the switch driving module is used for controlling the on-off state of the switch module; the sampling module is electrically connected with the alternating current power supply equipment and is also used for acquiring power supply parameters of input power of the alternating current power supply equipment; and the control module is connected with the compensation module, the switch driving module and the sampling module, and the control module is used for obtaining a switch control signal according to the power supply parameters and controlling the switch driving module based on the switch control signal so as to control the on-off state of the switch module