Power supply circuit and electronic equipment

The embodiment of the utility model provides a power supply circuit and electronic equipment, and relates to the technical field of power supply circuits. The power supply circuit comprises a PFC boost circuit, a BUCK circuit and a clamping circuit. The output end of the PFC booster circuit is electrically connected with the positive electrode output end of the BUCK circuit, and the positive electrode output end and the negative electrode output end of the BUCK circuit are used for being connected with a load. And the clamping circuit is electrically connected with the high-voltage power supply end of the BUCK circuit. According to the power supply circuit, the voltage of the high-voltage power supply end of the BUCK circuit can be clamped through the clamping circuit, so that the voltage of the high-voltage power supply end is prevented from being too high, and output open-circuit voltage limitation is prevented from losing efficacy under the conditions of repeated startup and shutdown and the like. 本申请实施例提供