Control method and device of power factor correction (PFC) circuit, equipment and medium

The embodiment of the invention discloses a control method and device of a power factor correction (PFC) circuit, equipment and a medium, which are used for solving the problems of high implementationcost and serious THD (total harmonic distortion) existing in the conventional control method of the PFC circuit. The control method of the PFC circuit comprises the following steps: acquiring the working current of the PFC circuit; when it is determined that the working current exceeds a predetermined current envelope line, controlling to turn off a switching tube in an on state in the PFC circuit, wherein the predetermined current envelope line is determined according to the current envelope line of the PFC circuit under the control of a continuous conduction mode CCM and the current envelope line of the PFC circuit under the control of a triangular wave current mode TCM or a critical conduction mode CRM. 本发明实施例公开了一种功率因数校正PFC电路的控制方法、装置、设备及介质，用以解决现有的PFC电路的控制方法所存在的实现成本较高以及THD较严重的问题。所述功率因数校正PFC电路的控制方法，包括：获取所述PFC电路的